- NZNOG - lists.nznog.org

RE: RFD - proposal to create '.bank.nz'
by Juha Saarinen 26 Aug '02

26 Aug '02

On Tue, 27 Aug 2002, Ben Martel wrote: > The most obvious reason was to follow the .uk model. Remember the Queen and > all that! Yes, yes, I *know* that already. But, cf. "co.uk" with "co.nz". Isn't the latter just a tiny bit anarcho-syndicalist and anti-capitalist? I'm reminded of Jello Biafra's bid for the San Francisco mayoralty -- one of his policies were to make businessmen wear clown suits during working hours. -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: [members-announce] RFD - proposal to create '.bank.nz'
by Zanetti David 26 Aug '02

26 Aug '02

Apologies in advance for poor formatting and/or other Outlook-isms. From: Ewen McNeill [mailto:ewen(a)naos.co.nz] > In message <a0511173fb98fff084e9f(a)[10.0.1.3]>, Andy Gardner writes: > >How about this: > > > >Once the SRS is running and has passed tests (tests conceived by someone > >other than a baboon), .nz's SLD is opened up to allcomers? > > Each time someone proposes a SLD, someone (often several people) raise > the idea of a "free for all" in the SLD space. > > What no one has explained to me is: what is so much better > about nationalbank.nz than national.bank.nz or for that matter > matrix-the-movie.com than matrix.movie (to pick an example I find > particularly grating). [clip a fresh dose of sanity] Hear hear! Finally a sane point of view. > I should, however, note that (a) I think it should be a lot easier to > get more SLDs (I do think they should be moderated, but I also think a > 3-6 month proposal phase is _way_ too long; 3-6 _weeks_ would be > better), and (b) I don't have a major problem with any of the > suggestions I've seen on either nznog or isocnz-members, providing it's > intended there be a moderately logical hierachy underneath it. I'd support this, it is too long a process. I don't want to see it totally open slather, but since the whole vote thing can be easily rigged, it's of little value. Council should ask around, and then decide, and not a lot else should need to be done. -- David Zanetti <david.zanetti(a)nzpost.co.nz> Security Engineer, New Zealand Post Desk: +64-4-496-4005 Mobile: +64-25-832-572 "Hope.. is a dangerous thing" This email with any attachments is confidential and may be subject to legal privilege. If it is not intended for you please reply immediately, destroy it and do not copy, disclose or use it in any way. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Re: [members-announce] RFD - proposal to create '.bank.nz'
by Ewen McNeill 26 Aug '02

26 Aug '02

NOTE: it's rather odd to have this discussion being crossposted to two member-posting-only mailing lists. Perhaps it would be better at, eg, public-consult(a)internetnz.net.nz which was mentioned in the original announcement that .bank.nz was being raised again. In message <a0511173fb98fff084e9f(a)[10.0.1.3]>, Andy Gardner writes: >How about this: > >Once the SRS is running and has passed tests (tests conceived by someone >other than a baboon), .nz's SLD is opened up to allcomers? Each time someone proposes a SLD, someone (often several people) raise the idea of a "free for all" in the SLD space. What no one has explained to me is: what is so much better about nationalbank.nz than national.bank.nz or for that matter matrix-the-movie.com than matrix.movie (to pick an example I find particularly grating). You don't get rid of the name space problem by getting rid of name spaces; you just move it around. And you move it around so that you end up with more ad-hoc variations than you would have, if you'd had a SLD. Not to mention that there are technical advantages from multiple SLDs, due to the way the DNS was designed (it was designed to be a deep hierachy). I should, however, note that (a) I think it should be a lot easier to get more SLDs (I do think they should be moderated, but I also think a 3-6 month proposal phase is _way_ too long; 3-6 _weeks_ would be better), and (b) I don't have a major problem with any of the suggestions I've seen on either nznog or isocnz-members, providing it's intended there be a moderately logical hierachy underneath it. Ewen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Next generation of SPAM
by Philip D'Ath 20 Aug '02

20 Aug '02

Take a look at: http://www.directadvertiser.com/ It may become the next generation of SPAM. What these people appear to be doing is using Windows Messenger (note, not the same as MSN messenger) [aka, this method uses "net send ..."] to send advertising to people's desktop. The recipient of such a message gets a dialog pop up on their screen. Nothing amazing in the method - but they have wrapped it up in a simple interface so that anyone can do it. I think this is going to mainly affect dial up users with no firewall, as it shouldn't work through PAT connections [aka JetStream/Start] or firewalls. Philip D'Ath, BCMS, MCP, CCNA, CCDA. http://www.ifm.net.nz/ - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

9 17

Re: Next generation of SPAM
by Juha Saarinen 20 Aug '02

20 Aug '02

On Wed, 21 Aug 2002, Adrian Smith wrote: > It appears to be using UDP on port 135, > > which according to www.iana.org/assignments/port-numbers is for > > epmap 135/tcp DCE endpoint resolution > epmap 135/udp DCE endpoint resolution If I read it right (too lazy to do a tcpdump), it depends on which version of Windows, and whether or not you've killed off NetBIOS over TCP/IP in favour "direct hosted SMB" http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q204279& -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Re: Next generation of SPAM
by Adrian Smith 20 Aug '02

20 Aug '02

It appears to be using UDP on port 135, which according to www.iana.org/assignments/port-numbers is for epmap 135/tcp DCE endpoint resolution epmap 135/udp DCE endpoint resolution Adrian Smith >>>> "Juha Saarinen" <juha(a)saarinen.org> 21/08/2002 11:53:38 >>> >Gordon Smith wrote: >> Looks like a copy of an open source tool that was around some time >> ago. Also has bogus domain registration details, and the address on >> the site is in spammer paradise (Florida). >> >> I believe that the MS NET SEND command relies on NetBIOS over TCP, so >> having something like this at the borders should make it a non-issue: >> >> access-list 101 deny tcp any any eq 137 >> access-list 101 deny tcp any any eq 138 >> access-list 101 deny tcp any any eq 139 >You might have to add TCP and UDP 445 to that list, for Win2K/XP. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

peer (fwd)
by Matt Camp 18 Aug '02

18 Aug '02

Tim assures me he's fixed it this time..... As before, please apply this to any domestic peering session with either AS4768 or AS7714.

2 1

Noshade size
by nznog 18 Aug '02

18 Aug '02

------------------ Virus Warning Message ------------------ word is removed from here because it contains a virus. ------------------------------------------------------------- ------------------ Virus Warning Message ------------------ Found virus WORM_KLEZ.H in file word The uncleanable file is deleted. For more information regarding Xtra's anti-virus email filter please visit http://xtra.co.nz/anti-virus Please do not reply to this mailbox, as it is not managed. Any enquiries regarding anti-virus should be directed to anti-virus(a)xtra.co.nz -------------------------------------------------------------

1 0

"A secure, zoned Internet within five years"
by Juha Saarinen 15 Aug '02

15 Aug '02

http://www.theregister.co.uk/content/6/26695.html Interesting read. -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Peering
by Matt Camp 15 Aug '02

15 Aug '02

Beloved Peers, Update to the TelstraClear Domestic Peering Prefix-List Please remove: 202.0.32.0/20 le 24 202.0.50.0/24 Please add: 202.0.32.0/19 le 24 202.37.137.0/24 Full list attached.

4 8

FW: Another anti-spam tool
by Gordon Smith 14 Aug '02

14 Aug '02

Just a heads-up for everyone - just found a customer using a nasty little tool called spamstalker. Not only does it forge headers when the user bounces messages, it also attempts a sendmail HELO buffer overflow exploit. It's distributed out of the U.S. Needless to say, we'll be contacting the author... Cheers, Gordon Smith CCNA Network Operations Manager MoreNet Ltd - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: Fwd: Outage in Wellington
by Richard Naylor 14 Aug '02

14 Aug '02

At 04:41 p.m. 05/08/2002 +1200, Peter Mott wrote: >Are you saying that CityLink does not have UPS and autostart generator >on-site to run the whole works for at least 8 hours? I wondered when this would come up. CityLink has a different architecture and there is no "central office". Switching centers have ups and generators and smaller buildings just have UPS. But that doesn't guarantee anything. Y2k showed up a lot of "interesting effects" and I'm sure they haven't all been rectified. Having a geny in the building doesn't mean its tested and feeds everywhere you think it does. BTW - the building people mentioned this was their first outage in 7 years. In the case of this morning, we (and the other telcos in the room) run off the local power and took a short hit of around 15 minutes, despite a local outage measured in hours. We also elected to go to geny due to the switching issues the power boys were facing. We also supplied power to other tennants who had a need. If you have ever closed an 11kV switch on a fault in a metro ring main sub, you will understand why we made that decision. "did the earth move for you ?" is being polite. "Sudden suntans", stuck HT gloves, etc sometimes result. (aside: HT gloves come up to your elbow, when they are "stuck" it means they've melted to something, normally the switch handle or the wall on the other side of the room from where you were not so long ago.) Now whats really interesting is that after my earlier post, an ISP contacted me to see if the outage in Courtenay Place was the cause of two dropped pings in Thorndon. He mentioned that some of todays NZNOG discussion was already posted in a security list (?) being sent around, probably misquoted. My concern is that as a list we share fairly openly about incidents mixed with a degree of good humour and frequent light relief. If an unknowing party is quoting the list, then we need a closed list or reduce the chatter or even the info conveyed. Summary - this mornings outage wasn't a simple - NO POWER. It was complex, with enough other indicators to fool experienced (power) operators. They actually did a good job. rich richard.naylor(a)citylink.co.nz - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

3 2

Re: Domainz falling prey to spambots?
by Saby Singh 13 Aug '02

13 Aug '02

1 0

RE: DNS problems
by Tim John 11 Aug '02

11 Aug '02

Chris, I appreciate your concern, but I should have mentioned - and state for the record - that this name server issue is solely with the machine hosting the DRS and nothing to do with the .nz DNS. I don't want anyone thinking that the 'real' name servers are effected by this. Tim -----Original Message----- From: Chris Wedgwood [mailto:cw(a)f00f.org] Sent: Thursday, 8 August 2002 4:02 p.m. To: Tim John Cc: 'nznog(a)list.waikato.ac.nz' Subject: Re: DNS problems On Thu, Aug 08, 2002 at 02:42:38PM +1200, Tim John wrote: The mail queue on the server is unable to resolve the names for the relevant name servers when sending the notification mail. Why is this? It's troubling Domainz of all people are having DNS issues. --cw DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

4 3

latency
by Michael Newbery 11 Aug '02

11 Aug '02

It's Friday... I have been considering a suitable measure for IP latency. Inspired by the knowledge that at least one network protocol uses micro-fortnights as a unit (RFC 995), I respectfully offer the following modest proposal for consideration. We typically measure latency in msec, which is just so mundane and last millennium. Given that the speed of light is a constant, we can easily map between time and distance with the simple formula d=ct. Since our proposed new unit is purely nominal, we will use the speed of light in vacuo. In this post-modern world, why not use a tried and true, human centered measure. I like the cubit. It has stood the test of time, plus it has the word 'bit' in it. Now, typical values of latency produce a number of cubits that is rather large, so for most networks we will need to scale up the the mega-cubit (Mcubit). Those of us firmly wedded to powers of two may prefer the IEC standard nomenclature for powers of two prefixes of MiCubit (pronounced mebicubit). Which leads to the observation that the current distance from my workstation to Xtra is 3.47Mcubits, Cisco is 23Mcubits away, www.theregister.com is 34Mcubits away, and I am only 0.45 mebicubits from Paradise. Draw what comfort you may from this. -- Michael Newbery IP Architect TelstraClear Limited - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

9 16

Appreciation !
by Tim John 11 Aug '02

11 Aug '02

Hi Lin, Thank you for those words of reason; they are like a ray of light through the shadows. The DRS and all that went on at it's launch was before my time. I inherited the system when I started about 15 months ago and I believe we've made some good changes since then to make the system more reliable and hopefully a little better to work with. As we will be the 'stabilising registrar' under the SRS, Domainz have had to do some significant work to meet the needs of a shared environment. We will be introducing a new finance application in the next few weeks that will enable a large chunk of the existing system to be removed, thus giving an improvement in performance to what's left of the DRS. In my personal view, Domainz are in a 'strange' place at the moment. We are paying for the registry part of the existing system to be rebuilt and separated from us. We will be the guinea-pigs for the new environment and we are under the constant threat from our shareholders who are considering closing Domainz down. Quite frankly, it seems a lose/lose situation for us and which-ever way you look, we are bound to get a slamming once again. It's not a favourable spot for a Domainz (or any other) employee to be in ! Aside from the past, present and future politics of Domainz <groan>, I have made it my responsibility to try and provide the best system we can to our customers. I don't - to quote - 'hate the DRS', but I can assure you that I get as frustrated as everybody else from time to time. The DRS is all we've got at the moment, so we've got to try and make the most of it. If I hear of issues that could effect a wide audience of users, I want to get them fixed as soon as possible - as any IT Professional would. I appreciate that a lot of people have been burned in the past with the DRS and there is a lot of resentment out there (cue Peter M. :>) for both the system and some of the people involved in setting it up. My colleague Chris and I (IT Dept.) are simply trying to provide a level of service that is as good as possible given the tools we've got. Again, in my personal opinion, I am looking forward to the SRS and hope that Domainz can take on a commercial role in the future; I'd love to be involved in the next saga of the Company. There are some good people here who are passionate about their jobs, even under the continuing negativity of the DRS. Thanks again, Lin. My final point is that I enjoy working 'with' people and certainly not 'against' them. It's just not my style. Cheers, Tim -----Original Message----- From: Lin Nah [mailto:lin(a)darkmere.gen.nz] Sent: Sunday, 11 August 2002 11:49 p.m. To: nznog(a)list.waikato.ac.nz Subject: RE: DNS problems HI all While at the SRS information meeting the day before the nznog conference, I noticed the something that I am observing now. I am myself guilty of it. The negative opinion and suspicion we have of Domainz and their intentions is still there. I am not surprised by it. I myself (at the meeting) were asking questions to ensure the same thing didn't occur again. However I think we have to realise that many of the technical and even management of Domainz were not around or had nothing to do with the specification and implementation of the system forced on us on 1 May 2000. The current CEO is definitely different from POB. They have to live with it as we do until such time the new SRS is up and going. We all know the system is fubar'd. From what I gather they will decide at that point what to do with the DRS but until such time, they have to keep it going. Some of you met Tim John at the nznog conference. It was a pity though Derek Locke, the CEO, was registered for the conference and I did see him around one day, didn't introduce himself to those of you there so you could ask him questions about the transition from monopoly to SRS. In fact I was a bit annoyed when I found out about the SRS briefing that it wasn't held at the conference, to give some of you (network operators) an idea of what they were planning to accomplish with it. Why am I writing this? I think we should perhaps try to be helpful to people like Tim and other technical staff at domainz. I am sure they secretly hate it (the DRS) as much as we do. We know there are holes to that system. For example this week we hear not all emails went out and there's been no bounces etc. shrug - nothing new to me since I know of quite a few domain holders who never received their notification for renewal or initial invoice. I am not saying I will stop asking questions but I think I will try my best to do in a nicer tone. No we can't tell him about emails we didn't receive since we don't know about them. However if some of you have made changes to your domain, you should usually get an email about it. Similarly if you know your domain is due for renewal, they usually send renewal email reminders. So if you have received an invoice without a reminder email, that could be an indication why. regards Lin Footnote for those interested in the SRS: >From what I gather the SRS goes ahead on 1 Sept. At that point in time Domainz will be the sole registrar to the new registry. Once it is deemed stable etc, other registrars will be added on. I believe the deadline for that is 1 December 2002. They want a buffer period so they have an option to go back if things go horribly wrong. I believe once they start having other registrars it is a point of no return. Domainz has promissed to help in the transition process. Yes they have to help their competitors by helping with the transfer of domains to those registrars. Also the software for the SRS is open source. All interested registrars can either develop their own system or use the code developed. For the former, the technical specs have been placed online as well. There were lots more discussed at the meeting which went overtime ( I did think they were too optimistic that 2 hours was enough) Anyway if you want to know more, I suggest going to www.dnc.org.nz There's info there. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Very cool Internet appliance
by Juha Saarinen 08 Aug '02

08 Aug '02

http://reviews.zdnet.co.uk/review/2/2/1600.html Definitely something NZ ISPs should consider reselling! Wonder if you could use MRTG to graph the beer temperature/flow etc? -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: Newsfeed Services
by Arjen De Landgraaf 08 Aug '02

08 Aug '02

E-Secure-IT has a very complete and up-to-date newsfeed in the area of IT security. This is available free on their website (www.e-secure-uit.us) and can be made available to individual ISPs. Arjen de Landgraaf -----Original Message----- From: Tony Wicks [mailto:nzog(a)road.gen.nz] Sent: Friday, 9 August 2002 1:19 p.m. To: nznog(a)list.waikato.ac.nz Subject: RE: Newsfeed Services TelstraClear will supply newsfeed services to International Internet Wholesale customers, generally at no additional charge. ( delivered over domestic connectivity ). That service is not available to non-wholesale customers. > -----Original Message----- > From: owner-nznog(a)list.waikato.ac.nz > [mailto:owner-nznog(a)list.waikato.ac.nz]On Behalf Of Donovan Jones > Sent: Thursday, 8 August 2002 1:45 p.m. > To: nznog(a)list.waikato.ac.nz > Subject: Newsfeed Services > > > Given that Telecom will be terminating their Newsfeed service at > the end of > August, we are looking for a new source of usenet news for our customers. > Does anyone else in New Zealand provide Newsfeed services suitable for > an ISP (for a fee of course), or better yet is there anyone in New > Zealand that will provide (for a fee) direct access to a news server by > another ISPs customers. > > Supernews has been suggested as an option but we would obviously prefer > a local feed due to international bandwidth costs. > > Donovan Jones > > - > To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz > where the body of your message reads: > unsubscribe nznog > - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

Newsfeed Services
by Donovan Jones 08 Aug '02

08 Aug '02

Given that Telecom will be terminating their Newsfeed service at the end of August, we are looking for a new source of usenet news for our customers. Does anyone else in New Zealand provide Newsfeed services suitable for an ISP (for a fee of course), or better yet is there anyone in New Zealand that will provide (for a fee) direct access to a news server by another ISPs customers. Supernews has been suggested as an option but we would obviously prefer a local feed due to international bandwidth costs. Donovan Jones - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

4 3

Change in Unsubscription Practice - Full Mailboxes
by Donald Neal 07 Aug '02

07 Aug '02

NZNOG People, I have in the past only unsubscribed addresses from the NZNOG list which produced permanent errors - unknown addresses rather than bounces due to relaying filters, for example. I have now been receiving bounces due to a full mailbox from two addresses for several days. Starting tomorrow, any address which produces bounces of that kind for long enough will be unsubscribed. - Donald Neal ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you." ------------------------------------------------------------------------------ - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

4 3

RE: DNS problems
by Tim John 07 Aug '02

07 Aug '02

> I don't think anyone thought this. I never claimed this, nor was it > the point I was making. Sorry - I didn't mean it as a retaliation. But it still worth mentioning. -----Original Message----- From: Chris Wedgwood [mailto:cw(a)f00f.org] Sent: Thursday, 8 August 2002 4:33 p.m. To: Tim John Cc: 'nznog(a)list.waikato.ac.nz' Subject: Re: DNS problems On Thu, Aug 08, 2002 at 04:13:09PM +1200, Tim John wrote: I don't want anyone thinking that the 'real' name servers are effected by this. I don't think anyone thought this. I never claimed this, nor was it the point I was making. --cw DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

DNS problems
by Tim John 07 Aug '02

07 Aug '02

Hi all, I'm looking into some strange occurrences with the automatic emails generated by the Domainz DRS. There seems to be a few .nz Providers who have not received these emails recently and depend on them for registration notifications. The mail queue on the server is unable to resolve the names for the relevant name servers when sending the notification mail. I have restarted the DNS service, which will hopefully flush any cashed information and renew with current records. Are any other .nz Providers (or their customers) experiencing a lack of emails from Domainz ? Perhaps the lack of these emails could be seen as a good thing ... :> Cheers, Tim DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

5 4

FW: DNS problems
by Tim John 07 Aug '02

07 Aug '02

> I for one was not impressed that it managed to cache 3 week old DNS > records for our MX servers. Not to mention the lack or > logging, bounces or traceability in your software. Me neither, but the software was developed before my time and I'm just carrying the baby ! The cached information did seem to be the cause of the problem though. -----Original Message----- From: Simon Lyall [mailto:simon.lyall(a)ihug.co.nz] Sent: Thursday, 8 August 2002 3:04 p.m. To: 'nznog(a)list.waikato.ac.nz' Subject: Re: DNS problems > On Thu, 8 Aug 2002, Tim John wrote: > > I have restarted the DNS service, which will hopefully > flush any cashed > > information and renew with current records. > > I for one was not impressed that it managed to cache 3 week old DNS > records for our MX servers. Not to mention the lack or > logging, bounces or > traceability in your software. > > When we moved our main MX servers we droppped the TTLs to 15 minutes > *and* kept the old servers running for a week to be sure, > nobody else had > a problem. > > Still things like DNS and email are hard, have you considered > contracting > them out to a company with more expertise in those areas? > > > -- > Simon Lyall. | Newsmaster | Work: > simon.lyall(a)ihug.co.nz > Senior Network/System Admin | Postmaster | Home: > simon(a)darkmere.gen.nz > ihug, Auckland, NZ | Asst Doorman | Web: http://www.darkmere.gen.nz - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: DNS problems
by Tim John 07 Aug '02

07 Aug '02

> We are, but we have your domain in our spam filters. It seems to be working > rather well OK. I walked into that one :) -----Original Message----- From: Peter Mott [mailto:peter.mott(a)2day.com] Sent: Thursday, 8 August 2002 3:24 p.m. To: Tim John; nznog(a)list.waikato.ac.nz Subject: RE: DNS problems > Are any other .nz Providers (or their customers) experiencing a lack of > emails from Domainz ? We are, but we have your domain in our spam filters. It seems to be working rather well -PWM "Hell, there are no rules here - we're trying to accomplish something!" Thomas A Edison DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Re: DNS problems
by Simon Byrnand 07 Aug '02

07 Aug '02

At 14:42 8/08/02 +1200, Tim John wrote: >I'm looking into some strange occurrences with the automatic emails >generated by the Domainz DRS. There seems to be a few .nz Providers who have >not received these emails recently and depend on them for registration >notifications. > >The mail queue on the server is unable to resolve the names for the relevant >name servers when sending the notification mail. "unable to resolve" - can you be more specific than that ? A temporary failure to reach the authorative nameservers for the domain should just put the message back on the queue to be tried later. Unless the domain in question had failure of nameservers for a week straight, no messages should go missing....(people wouldn't want a .nz provider that had problems like that anyway :) >I have restarted the DNS service, which will hopefully flush any cashed >information and renew with current records. Which shouldn't be necessary unless your DNS is broken... >Are any other .nz Providers (or their customers) experiencing a lack of >emails from Domainz ? I wonder exactly how we're supposed to notice email which doesn't arrive ? :) Regards, Simon Byrnand iGRIN Internet - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

Re: Netgate outage causes chaos!
by Chris Wedgwood 07 Aug '02

07 Aug '02

Still flogging a dead horse... On Sun, Aug 04, 2002 at 11:33:32PM +1200, Peter Mott wrote: But the telecom delegated /23 had no name resolution. Empty/broken zone, lame delegation or name-servers not responding? For your original email is sounds very much like the latter, in which case *most* things will keep working albeit a little more slowly at times perhaps. Email won't be lost, it will remain in the queues, web-traffic should be blisfully ignorant of this. As much of 25% of the 'NZ in-addr.arpa' space is bogus last time I checked. Thousands of web applications on our virtual web servers were unable to send mail because the in-addr zone ttl expired on our caching name servers Your expired in under 30 minutes? and lookups to auth name servers failed due to loss of parent name servers I'm not sure i follow here. Since our mailers require even our own host ip addresses to resolve to a useful name things were very sucky for a time. Eh? Your MTAs fail to stop working when they can't resolve their own names from address? Sounds pretty nasty to me.... We are making quite a few network changes at this time, so had ttl lower than usual. Needless to say I've wound it back up again. Lucky for us, none of our outbound mailers are on the /23 concerned, or other isp mailers would no doubt been refusing mail from our customers. I doubt it... so much DNS is busted out there almost body requires in-addr.apra to be working when receiving email. Sorry, I just don't understand why this was such a problem... reverse is broken for so many people and they never notice it. --cw - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

3 2

69/8 allocated to ARIN
by Rob Thomas 07 Aug '02

07 Aug '02

Hi, NZNOG folks. [ Apologies to those of you who have seen this elsewhere. ] IANA has allocated 69/8 to ARIN. I have updated my Bogon List and my sundry templates to reflect this change. You should modify your filters accordingly. IANA IPv4 Allocation List - http://www.iana.org/assignments/ipv4-address-space Bogon List - http://www.cymru.com/Documents/bogon-list.html Secure IOS Template - http://www.cymru.com/Documents/secure-ios-template.html Secure BGP Template - http://www.cymru.com/Documents/secure-bgp-template.html Secure BIND Template - http://www.cymru.com/Documents/secure-bind-template.html Thanks, Rob. -- Rob Thomas http://www.cymru.com ASSERT(coffee != empty); - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Re: Radius server for Telecoms IP.something
by Malcolm Lockyer 06 Aug '02

06 Aug '02

>From what I can deduce from your comments - it doesn't sound like you'll need to buy a $1000AU radius software package just yet (although it is good software). For you scale (I'm guessing - if you have thousands of dial-up customers or somthing, then I'm wrong :) some "freeware" radius package would do fine. I can recomend IC-Radius, although it isn't perfect and isn't exactly mature - but the major advantage to it is that by default it keeps almost all of its configuration, accounting and users in a mysql database. Which for small operations is really handy. I know that that isn't the best reliablility wise - because if the mysql server dies it will refuse to authenticate at all. If you need somthing more - then use free radius, using a flatfile database - with a perl script and a crontab job to re-generate the flatfile "text file" from the mysql database every 10 or so minutes. Installation and configuration of ic-radius isn't that hard - and they have a semi-active mailing list. Bassically for the install you just need to install the libries required (such as the Perl DBI - so the scipts can talk to your database), install and compile the radiusd binaries - then load the radius "Dictionaries" (a file which contains alot of variable atributes so that your radius can talk to the telecom radius - ask telecom for it). Then you have a working radius server. It even includes a cgi based basic management program to get you started quickly - which has been ported to php. <puts on flame proof jacket> Correct my if I'm wrong - I'm no expert... Malcolm >From: Andy Linton <asjl(a)lionra.net.nz> >To: Bjorn Nilsen <bnilsen(a)manux.co.nz> >CC: nznog(a)list.waikato.ac.nz >Subject: Re: Radius server for Telecoms IP.something >Date: Wed, 7 Aug 2002 18:23:36 +1200 (NZST) > >On Wed, 7 Aug 2002, Bjorn Nilsen wrote: > > > Hello, > > > > I want to set up a radius server as we are looking at using Telecoms > > IP.office/IP.remote (or whatever it is called) here. I have never set up >a > > radius server and only know what I have read about it. I have set up >Bind, > > Apache, QMail and various other Linux based systems so hopefully this is >not > > out of my capabilities. As with all Linux software there is many options >to > > choose from eg: Cistron Radius, Livingston Radius, GNU Radius, ICRadius, > > FreeRadius. I understand that radius is a standard but from experience >(eg: > > IPSec) different implementations are not always completely compatible. >What > > radius server would people recommend? It is to be used with Telecoms > > IP.whatever, and needs to run on Linux (or BSD). > > > >Not clear if you want a free server or are prepared to pay for one. If the >latter see http://www.open.com.au/radiator/index.html > >I've just been setting this up and I like it. > >Widely used - see http://www.open.com.au/customerlist.html > --snip-- _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Spam from 200/8
by Mark Foster 06 Aug '02

06 Aug '02

Hi Guys, We've had to block 200.0.0.0/8 from our MTAs temporarily, our mail queue jumped to around 30,000 messages at around 6:40 this morning and we're still taking more than one message per second from MTAs which are predominantly in that netblock. There are exceptions now but blocking 200/8 certainly reduced the load something chronic. Looks like a sweep (random(a)ourdomain) looking for valid targets, and the source addresses are random(a)a-valid-but-forged-domain. As a result our MTAs are now bombarding the source domain MTA trying to bounce all the invalid addresses, and now we're getting complaints from them... Wonder whether any other NZ ISPs have seen this happen recently or whether this is the first of many? - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

6 5

Speaking of spam...
by Dylan Reeve 06 Aug '02

06 Aug '02

I have seen spam 'from' brandebank(a)brandebank.com arrive at a number of addresses today, at least one of them is fairly new, and I have never posted it anywhere public that is likely to have been trawled. Anyone else seen these? Are they a symptom of the mass spam that had QSI blocking the majority of Latin American and the Caribbian? -- Dylan Reeve - dylan(a)wibble.net It's just not cricket. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: Fwd: Outage in Wellington - OT
by Tim John 06 Aug '02

06 Aug '02

> "Hell, there are no rules here - we're trying to accomplish something!" > Thomas A Edison Peter, I notice your signature has changed ... Isn't it 'fun to do the impossible' any more :) Tim -----Original Message----- From: Peter Mott [mailto:peter.mott(a)2day.com] Sent: Tuesday, 6 August 2002 7:25 p.m. To: Richard Naylor; Peter Mott; Mark Foster; nznog(a)list.waikato.ac.nz Subject: RE: Fwd: Outage in Wellington > I wondered when this would come up. CityLink has a different architecture > and there is no "central office". Switching centers have ups and > generators > and smaller buildings just have UPS. So your switching centres stayed up and other locations with just UPS went down due to available runtime being exceeded by outage length? -PWM "Hell, there are no rules here - we're trying to accomplish something!" Thomas A Edison - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog DISCLAIMER: The content of this email is confidential and may contain legally privileged information intended only for the individual or entity named above. Access to this message by anyone else is unauthorised. If you are not the intended recipient, please be advised that the use, distribution and publication of the above information is prohibited. If you have received this email in error, please contact Domainz by returning the email and destroying the original. Thank you. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: Fwd: Outage in Wellington
by Wayne Kampjes 06 Aug '02

06 Aug '02

wot - no power backup for this stuff? -----Original Message----- From: Juha Saarinen [mailto:juha(a)saarinen.org] Sent: Monday, 5 August 2002 12:05 To: Mark Foster Cc: nznog(a)list.waikato.ac.nz Subject: Re: Fwd: Outage in Wellington On Mon, 5 Aug 2002, Mark Foster wrote: > Ok try it from the right address now. :) > > > >Date: Mon, 05 Aug 2002 11:54:56 +1200 > >To: nznog(a)list.waikato.ac.nz > >From: Mark Foster <mfoster(a)quicksilver.co.nz> > >Subject: Outage in Wellington > > > >Just heard from one of our NOC team here that there seems to be a power > >outage in Wellington which has certainly affected Citilink (one of our > >links is down) and by the looks also Actrix (who dissapeared off the face > >of the map earlier this morning.) > > > >Just in case anyone else is wondering why things are being a bit strange. > > > >Mark. > >(Quicksilver Internet) Ohhh... is that why www.stuff.co.nz is dead too? -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you." ------------------------------------------------------------------------------ - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

6 5

RE: Magnetic field strength in NZ?
by Dan Langille 05 Aug '02

05 Aug '02

On 6 Aug 2002 at 8:42, Lindsay Druett wrote: > Now you're telling everyone how ancient you are.... I was only born > towards the end of the '60s And I in the early 60's. > Just out of curiosity, what did they/you use for the return path when > they/you measured the EMF induced by the earth's magnetic field onto > the disused telegraph cable ? I don't know. I should clarify. I was helping someone research what the cable had been used for after it was no longer used for telegraph (its original purpose). > -----Original Message----- > From: Dan Langille [mailto:dan(a)langille.org] > Sent: Monday, 5 August 2002 17:08 > To: Juha Saarinen > Cc: NZNOG > Subject: Re: Magnetic field strength in NZ? > > > Strange that you should mention it... I was involved in some > research on the Pacific Cable (a telegraph cable from Vancouver to > NZ). One of the things we found was that after decomissioning (in the > 60's I believe), it was used to measure earth current. -- > -- Dan Langille I'm looking for a computer job: http://www.freebsddiary.org/dan_langille.php - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Magnetic field strength in NZ?
by Juha Saarinen 04 Aug '02

04 Aug '02

Does anyone know roughly how many mG it is? Of course this is on topic for NZNOG. I need to ahhh... uhhh... measure electron deviation in network gear made for Northern Hemisphere magnetic conditions. ;-) -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

3 2

Re: Fwd: Outage in Wellington
by Richard Naylor 04 Aug '02

04 Aug '02

At 11:59 a.m. 05/08/2002 +1200, Mark Foster wrote: Just heard from one of our NOC team here that there seems to be a power outage in Wellington which has certainly affected Citilink (one of our links is down) and by the looks also Actrix (who dissapeared off the face of the map earlier this morning.) >>Just in case anyone else is wondering why things are being a bit strange. The Power co had a cable fault they eventually found. Initially another substation fault was feared as a transformer tripped at the same time and at the same place as the ring opened - which happened to NOT be the faulty cable segment. After a few recloses (think "no shutdown" with lotsa power behind you) the fault became apparent. (ie someone felt the ground shake) and it was isolated. Most customers closed things down due to false restarts with the recloses. We waited and installed a geny as the UPS was horribly confused and pretty well dead. The outage affected New World, Actrix (where CityLink have a switch) and most of Courtenay Place. There were genies and extension cords everywhere.........even down the footpath. The New World Sub needs some new paint on the switchgear. Things are now restored and the power boys are off to do a location and dig. rich richard.naylor(a)citylink.co.nz - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Still seeing Code Red/NIMDA activity?
by Juha Saarinen 04 Aug '02

04 Aug '02

Hi, Just a quick check if NZ network operators are still seeing Windows worm activity, so to speak. Has anyone kept statistics on this? If so, I'd be interested to hear about it -- contact me off-list, please. (Or keep it on-list, if it's deemed on topic.) Cheers, -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: Fwd: Outage in Wellington
by Gavin Bartle 04 Aug '02

04 Aug '02

>From the looks of their site they might have been updating it -----Original Message----- From: Juha Saarinen [mailto:juha(a)saarinen.org] Sent: Monday, 5 August 2002 12:05 p.m. To: Mark Foster Cc: nznog(a)list.waikato.ac.nz Subject: Re: Fwd: Outage in Wellington On Mon, 5 Aug 2002, Mark Foster wrote: > Ok try it from the right address now. :) > > > >Date: Mon, 05 Aug 2002 11:54:56 +1200 > >To: nznog(a)list.waikato.ac.nz > >From: Mark Foster <mfoster(a)quicksilver.co.nz> > >Subject: Outage in Wellington > > > >Just heard from one of our NOC team here that there seems to be a power > >outage in Wellington which has certainly affected Citilink (one of our > >links is down) and by the looks also Actrix (who dissapeared off the face > >of the map earlier this morning.) > > > >Just in case anyone else is wondering why things are being a bit strange. > > > >Mark. > >(Quicksilver Internet) Ohhh... is that why www.stuff.co.nz is dead too? -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

Fwd: Outage in Wellington
by Mark Foster 04 Aug '02

04 Aug '02

Ok try it from the right address now. :) >Date: Mon, 05 Aug 2002 11:54:56 +1200 >To: nznog(a)list.waikato.ac.nz >From: Mark Foster <mfoster(a)quicksilver.co.nz> >Subject: Outage in Wellington > >Just heard from one of our NOC team here that there seems to be a power >outage in Wellington which has certainly affected Citilink (one of our >links is down) and by the looks also Actrix (who dissapeared off the face >of the map earlier this morning.) > >Just in case anyone else is wondering why things are being a bit strange. > >Mark. >(Quicksilver Internet) - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: latency
by Michael Bordignon 01 Aug '02

01 Aug '02

> -----Original Message----- > From: Michael Newbery [mailto:Michael.Newbery(a)team.telstraclear.co.nz] > Sent: Friday, 2 August 2002 4:48 PM > To: nznog(a)list.waikato.ac.nz > Subject: latency > > > It's Friday... yay! - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Cable seeking backhoes
by Michael Newbery 01 Aug '02

01 Aug '02

Does anyone have a suitable rule of thumb to predict the incidence of cable seeking backhoes/trawlers per km? I've tracked down one reference of 'one hit per 7 months per 1000km', without any qualification as to location. One would for instance imagine that armor-plated cable sitting on the bottom of the ocean would have a different failure rate to that of RG9 strung across the local street. Google has thus far been rather unhelpful. -- Michael Newbery IP Architect TelstraClear Limited - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

The New Zealand Network Operators' Group
by Donald Neal 01 Aug '02

01 Aug '02

The New Zealand Network Operators' Group The New Zealand Network Operators' Group (NZNOG) has no king, president or formal membership. At present it consists of the subscribers to this mailing list, which anyone is free to join. This posting, or one like it, is sent to all subscribers each month. Operators' Contact List See http://www.usenet.net.nz/noc/ for operational contact details for most New Zealand ISP's. These are intended for use by other network operators rather than by most customers. Auckland Peering Exchange See http://www.ape.net.nz/ for details of the Auckland Peering Exchange and those connected there. About This Mailing List This list has around 340 subscribers, a number currently more or less static. You may only post to the list from an address subscribed to one of the lists described below. The NZNOG mailing list is provided through a server at The University of Waikato, and is administered by an employee of Telecom NZ Ltd. Neither of these organisations, nor the administrator, is responsible for its content. NZNOG Mailing List Acceptable Use Policy The NZNOG mailing list exists to provide a forum for the exchange of technical information and the discussion of implementation issues that require cooperation among New Zealand network service providers. In order to continue to provide a useful forum for discussion of relevant technical issues, users of the list are asked to respect the following guidelines. 1. Discussion will focus on Internet operational and technical issues. 2. Discussion related to meetings of network service providers is appropriate. 3. Discussion unrelated to these topics is not appropriate. 4. Postings to multiple mailing lists are discouraged. 5. Postings that include foul language, character assassination, and lack of respect for other participants are unacceptable. 6. Blatant product or service marketing is unacceptable. 7. Postings of a political, philosophical or legal nature are discouraged. 8. Postings to the list should be in ASCII or MIME encoded as text/plain. Attachments should not be sent to the list. To present a document, a suitable URL may be referred to. For documents of general interest, the use of proprietary file formats is discouraged. 9. Breaches of list etiquette should be dealt with privately with the offending list user, and should not result in complaints being sent to the list. 10. A person repeatedly breaching list etiquette shall receive warnings from the list administrator. A further breach after the second such warning within thirty days shall result in the offender being unsubscribed from the list. Other action may also be taken to block postings to the list by the offender. Any such unsubscription is to be immediately announced to the list. Mailing List Archives A full archive is available at http://list.waikato.ac.nz/archives/nznog/ Any message sent to the list will be archived and made available on the web automatically. Changes are not made to the archive on request, though the administrator remains happy to assist the Office of the Privacy Commissioner should any complaint be laid with that office. Subscribing to the List To subscribe to the NZNOG list, send email to majordomo(a)list.waikato.ac.nz, where the body of the message reads subscribe nznog Digest Mailing List If you don't wish to receive postings as they are sent, you can instead subscribe to the nznog-digest mailiing list, on which all postings are sent out in a single "digest" every couple of days. Post-only Mailing List An address from which you wish to post, but which will not receive messages from the list, may be subscribed to nznog-postonly. You will presumably want to have another address subscribed to the main nznog list. Donald Neal NZNOG Mailing List Owner/Administrator/Muggins ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you." ------------------------------------------------------------------------------ - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

ipv6 peering
by Chris Hellberg 30 Jul '02

30 Jul '02

Morning all, Thanks to Dean's great ipv6 presentation at Uniforum, everyone's got a ::/28 allocation from APNIC now, right? I'm interested in hearing from people who've got v6 allocations, either from tunnel brokers, or otherwise who'd like to peer at an NZ ipv6 peering point. APE and WIX are possibilities, however I have my doubts on the number of providers on WIX and APE who would be willing to add v6 addresses on their interfaces from citylink to any servers in their network; it'd be easier to put a 6to4 tunnel for testing purposes on a router in the middle of the network, especially if the router question already has a tunnel to a tunnelbroker overseas. One of the benefits of this is that any NZ<->NZ v6 traffic doesn't have to traverse international tunnels. The big driver of this will be the amount of local content available via v6. Admittedly there's not much around at the moment, however I do have mysql, apache, xfree86, cygwin, cpan and sunfreeware mirrors that are on the 6bone which could serve as good starters. I'm sure that there would be some webservers out there who are v6 aware which people would be willing to route ipv6 to. The more people we can get on the ix, the more content would become available. Sorta like the multicast chicken and egg thing. Could I get a showing of interest on who'd like to be on such an ix (just a box I have running zebra which a whole bunch of 6in4 tunnels), even if you've got a ::/64 tunnel allocation from a tunnel broker? There won't be any international v6 transit provided, just a BGP4+ feed of all the NZ prefixes of people peering. Cheers, Chris - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Banks to review ICMP filtering?
by Juha Saarinen 30 Jul '02

30 Jul '02

http://www.idg.co.nz/webhome.nsf/UNID/E8C8975FB28122B1CC256C0500167A15!open… -- Juha Saarinen - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: Banking/Hospital Problems and MTU
by rob.edkins＠axon.co.nz 28 Jul '02

28 Jul '02

> > Probably the reason its not on by default, is because it is > not a "fix", > its just a workaround, to work around braindead firewalls > that block all ICMP. > Agreed, it's a hack...but it's not only firewalls that drop ICMP...I came across this a few years ago with a WAN router that was misbehaving between Token Ring and Ethernet segments. > As such there would probably be considerable sacrifice in > performance when > it has to operate - first of all there will have to be a few lost > retransmitions of large MTU packets before it realises > something is wrong, > and then (from Juha's post) it just drops the MTU to 536 for further > communication, which is definately sub optimal, depending on > what the real > maximum MTU of the path is... > Yes, although it will only kick in on these sites that have this problem. It's dynamic on a per connection basis. Overall performance on the majority of connections won't be affected, as the 'ol TCP stack will behave as intended. > If it was on by default, it would hide the real problem, and > nothing would > ever get done about it. > Fixing is always better than working around, but given that ICMP access policy at the far end of the pipe is not something that Joe User usually has a lot of control over, then something that will work is probably better than something that doesn't. (From a user perspective) Unless it has some other negative impact.... Rob -- The information contained in this e-mail message is intended only for the use of the person or entity to whom it is addressed and may contain information that is CONFIDENTIAL and may be exempt from disclosure under applicable laws. If you read this message and are not the addressee you are notified that use, dissemination, distribution, or reproduction of this message is prohibited. If you have received this message in error, please notify us immediately and delete the original message. You should scan this message and any attached files for viruses. Axon Computertime accepts no liability for any loss caused either directly or indirectly by a virus arising from the use of this message or any attached file. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

DNS monitoring update
by Rob Thomas 28 Jul '02

28 Jul '02

Hi, NZNOGers. [ Apologies to those of you who have already seen this on NANOG. ] I have added two additional data collection points to my DNS root name server monitoring. I have also scaled the graphs and added a text only version. You will find it all here: http://www.cymru.com/DNS Comments and feedback are always welcome! Thanks, Rob. -- Rob Thomas http://www.cymru.com ASSERT(coffee != empty); - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

Pictures from Uniforum 2002 Online
by Mark Foster 28 Jul '02

28 Jul '02

Thanks to Eaden and Robert from Opentec - http://opentec.co.nz/uniforum Cheers, Mark. (Please forgive the CrossPosting.) - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

1 0

RE: Banking/Hospital Problems and MTU
by Simon Byrnand 28 Jul '02

28 Jul '02

At 10:46 29/07/02 +1200, rob.edkins(a)axon.co.nz wrote: >http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q159211& >http://support.microsoft.com/default.aspx?scid=KB;EN-US;q314825& > >Are useful too. > >This fix has been around for at least 4-5 years to my knowledge. >I don't know why it isn't on by default by now, but I guess it wasn't all >that big an issue in the old dial-up world. Probably the reason its not on by default, is because it is not a "fix", its just a workaround, to work around braindead firewalls that block all ICMP. As such there would probably be considerable sacrifice in performance when it has to operate - first of all there will have to be a few lost retransmitions of large MTU packets before it realises something is wrong, and then (from Juha's post) it just drops the MTU to 536 for further communication, which is definately sub optimal, depending on what the real maximum MTU of the path is... If it was on by default, it would hide the real problem, and nothing would ever get done about it. (I can see it now - "our Bank site works fine for MS operating systems, its only those weirdo's that run Linux that have problems because they don't have PMTUBHDetect" :) For once MS got something right by not making it on by default... Regards, Simon - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: Banking/Hospital Problems and MTU
by rob.edkins＠axon.co.nz 28 Jul '02

28 Jul '02

http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q159211& http://support.microsoft.com/default.aspx?scid=KB;EN-US;q314825& Are useful too. This fix has been around for at least 4-5 years to my knowledge. I don't know why it isn't on by default by now, but I guess it wasn't all that big an issue in the old dial-up world. > > http://www.microsoft.com/windows2000/techinfo/reskit/en/cnet/c > nbc_imp_yvjd.htm > > has more details. > > -- The information contained in this e-mail message is intended only for the use of the person or entity to whom it is addressed and may contain information that is CONFIDENTIAL and may be exempt from disclosure under applicable laws. If you read this message and are not the addressee you are notified that use, dissemination, distribution, or reproduction of this message is prohibited. If you have received this message in error, please notify us immediately and delete the original message. You should scan this message and any attached files for viruses. Axon Computertime accepts no liability for any loss caused either directly or indirectly by a virus arising from the use of this message or any attached file. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

RE: Banking/Hospital Problems and MTU
by rob.edkins＠axon.co.nz 28 Jul '02

28 Jul '02

There's a somewhat simpler reg hack on Windoze. Set HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\EnablePMTUBHDetect to 1 This enables automatic 'Black Hole' router detection and triggers automatic MTU scaling. BTW, the 'Don't Fragment' Bit is on by default with Windows. Rob > > How incredibly serendipitous. I just ran into this problem > at work the > yesterday. The service techs. for our digital radiology > system came in > and applied the latest service update. All of a sudden users weren't > able to log in via their browser loaded Java client. Funny thing is, > these guys spent 2 days trying to figure out the problem before > resorting to asking "the network guy"... one of those pride things I > guess. > > Some quality time (15 minutes) with tcpdump (well, windump) showed the > DF bit being set and repeated acknowledgment requests during the > "hang". After a modest amount of investigation and a few phone calls > the following was found: > > 1. a remote firewall blocking all ICMP (the admin won't change it) > 2. a router somewhere in the path with a lower MTU requirement > 3. a software upgrade forcing the DF bit to be set (developer won't > change it) > > Lowering the MTU on the client end fixed the problem; > however, I need to > get the registry hack distributed across ~500 desktop and all > potentially have different interface descriptions in the > HKLM/system/current control set/service/ ...what a PITA. > > > -- The information contained in this e-mail message is intended only for the use of the person or entity to whom it is addressed and may contain information that is CONFIDENTIAL and may be exempt from disclosure under applicable laws. If you read this message and are not the addressee you are notified that use, dissemination, distribution, or reproduction of this message is prohibited. If you have received this message in error, please notify us immediately and delete the original message. You should scan this message and any attached files for viruses. Axon Computertime accepts no liability for any loss caused either directly or indirectly by a virus arising from the use of this message or any attached file. - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

2 1

Domainz falling prey to spambots?
by Simon Byrnand 28 Jul '02

28 Jul '02

Hi Everyone, I've just noticed a disturbing trend in the last few days. I've started receiving considerable spam to an address (which is actually just an alias) which we *only* use as the technical contact address when registering new domains with domainz. (I won't say what it is in this forum, least I make life easy for any spambots that havn't found it yet :) Email is *never* sent from this address, it is *not* on any of our web pages or used in way except to be listed as technical contact. (In case anyone just looked up our own domain, that is not the contact address in question, we've only been using it for registrations in the last couple of months) This poses the question - just how have the spambots got hold of it ? Maybe they got lucky, and guessed it, but I don't think so. That leaves the domainz website, and whois servers. For a spambot to be able to find contact details of a domain, it would have to know the domain existed in the first place, as to my knowledge domainz don't provide a "list" of domains they have in their registry for exactly this sort of reason. And yet only a few months ago there was the case of the disreputable Australian registry that somehow managed to get a list of a large number of .co.nz's and their contact details, presumably through some kind of automated queries. I'm curious if anyone else has received spam to an address they know for certain is only used as contact details on domains registered at domainz... Regards, Simon Byrnand iGRIN Internet - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

3 2