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Re: mta.xtra.co.nz doesn't accept SMTP connects?
by Ewen McNeill 03 Sep '01

03 Sep '01

In message <21773.999569321(a)daedalus.co.nz>, Don Stokes writes: >Mark Foster <blakjak(a)blakjak.net> wrote: >>Simons Idea of setting up some servers as Secondary MX isnt a silly idea >>but I need to ask the questions: > >Actually, secondary MXs usually are a silly idea, if the MX can't >actually do anything useful with the mail apart from queuing it. All >they do is take a whole bunch of mail that would otherwise queue at the >client end mail server, and put them in one big queue. Secondary MXes (that can only queue and attempt onward delivery) are about "concentration of pain"; instead of the pain being spread across all the mail servers trying to deliver to the one that is down, it's concentrated in the secondary MX(es). This concentration of pain was more useful in the days when there were quite a few slow, not always up, links trying to deliver mail (especially dial-on-demand type links; uucp tended to be smarthosted once things got to a point that it mattered). Now that the common mode of mail delivery is basically two tier (clients deliver to their ISP's smart host, that smarthost is always connected and "easily" able to retry the mail often enough") there's less advantage in concentrating the pain. Especially weighed against some of the disadvantages you mention (eg, don't get "trouble sending" bounces early if sender end has low timeouts on those, but secondary MX doesn't). Except perhaps when the pain lasts a long time (hours, if not days), and causes a fair amount of trouble to a lot of people/mail servers. Like Xtra at the moment from what I've seen on nznog. BTW, has anyone considered that the reason that no one from Xtra has spoken up is that their outgoing mail is having trouble as well as their incoming mail? :-) Ewen --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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Re: mta.xtra.co.nz doesn't accept SMTP connects?
by Simon Byrnand 03 Sep '01

03 Sep '01

At 02:26 PM 4/09/01 +1200, Simon Lyall wrote: >On Tue, 4 Sep 2001, Don Stokes wrote: >> Most mailers have a hard time with huge queues of undeliverable mail, so >> such an MX is not going to be as efficient at dealing with the backlog >> when the primary comes back up as just leaving the mail where it is on >> client servers. > >The thing is it moves the load from our smtp servers (which last time I >looked had a lot of undelived emails for xtra customers) onto a machine >run by Xtra. Due to the amount of queued email on our servers we have had >to start taking actions to prevent delays of email to other sites. Yup. Not having a backup MX makes xtra's problem everyone elses problem instead. >You can also optimise the backup MX server for dealing with a large queue >to a single destination rather than a constrant stream of email to many >destinations. There are also other tricks you can run depending on your >mail software and network setup. Not to mention that mail servers around the country trying to connect to xtra's all the time wastes other peoples bandwidth. With a backup MX the mail queuing and retrying would be occuring between their backup and primary MX which in all likelyhood would be internal traffic (perhaps even on the same switched ethernet) rather than over national links. Dequeuing when the problem was resolved would be faster and more efficient than waiting for various random servers around the country to retry. >The anoying bit is that Xtra has not acknowledged this in public at all, >we are getting our customers blaming us for delays in email getting to >Xtra addresses. Well actually, they have acknowledged the problem on their website, (I was surprised, I was expecting the standard "There are no knon problems with the Xtra network") so short of making a public annoucement on TV and radio I don't see what else they could do to raise awareness to the average user :) Regards, Simon --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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RE: mta.xtra.co.nz doesn't accept SMTP connects?
by Michael Bordignon 03 Sep '01

03 Sep '01

> -----Original Message----- > From: Juha Saarinen [mailto:juha(a)saarinen.org] > Sent: Tuesday, 4 September 2001 1:20 PM > To: 'Simon Byrnand'; 'Dylan Reeve' > Subject: RE: mta.xtra.co.nz doesn't accept SMTP connects? > > > pop3.xtra.co.nz == mta.xtra.co.nz > then again they might be doing some type of port forwarding on that box? --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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

02 Sep '01

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 list has around 260 subscribers, growing by a handful each month. 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. 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. Other Activities NZNOG does not at present have other regular activities than this mailing list. Donald Neal NZNOG Mailing List Owner/Administrator/Muggins --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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RE: Wireless LAN equipment
by Greg Clare 02 Sep '01

02 Sep '01

Just another thought for ya... If it is a single story house and you can get under the house, then what I did was simply drill a small hole through the chipboard floor (just big enough for the Cat5 cable to get through), at the very edge of the carpet, right next to the skirting board. A small hole in the floor at the edge of the carpet line is invisible to anyone making a visual inspection (unless you get the carpet caught in the electric drill and rip a huge chunk of wool out... try to avoid this!). Then, if you don't want to screw Cat-5 outlets to your skirting board, just crimp the RJ45 plugs directly onto the leads that come up from under the floor so you can plug the leads straight into your RJ45 device. When you move, just cut the plug off one end of each lead and pull them back through, the little holes are left hidden by the carpet. PS: Going under the house also saves getting your lungs full of glass fibre. Greg > -----Original Message----- > Anyway, this is how a real pro (yep, that's me!) would do it: you get > your Cat-5 ready and then, get into the ceiling! Brilliant > eh? Tends to > work the best on old vullahs, where you can crawl around, breathing in > the remnants of some extremely hirsute sheep (or glass wool), and drop > the cable through the ventilation shafts or the holes for the > chandeliers-wotsits. Honest, it looks really neat and tidy -- > much nicer > than sticky tape all over the place. Watch out you don't put a foot > wrong though, and step through the ceiling. Lots of > cable-laying novices > perish every year that way. > > -- > Juha --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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Re: Speed of the list
by Ewen McNeill 01 Sep '01

01 Sep '01

In message <20010829125016.S7096(a)wilbur.katipo.co.nz>, Dean Pemberton writes: >[nznog; messages take a while to come out] >I can remember some guy from BSDi talking at uniforum in 98 about how sendmail >was crap at this. [addresses that don't resolve, etc, can kill whole list] Not to rain on anyone's parade, but most mailing list software injects messages in queue mode (to avoid an explosion of MTA processes trying to send the messages out immediately (in the background)). This then relies on the MTA queue processing to shift the messages out. Has anyone checked how often the queue is run on the relevant server? If it's every 30 minutes it'd pretty much exactly explain the times reported. If it's every 15 minutes (a common default with sendmail), then 15-minutes plus isn't that unlikely to happen given the right circumstances. For a mailing list of a few hundred addresses, it should be a walk in the park for most MTAs, sendmail included. Ewen --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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Wireless LAN equipment
by Richard Stevenson 31 Aug '01

31 Aug '01

Hi all In the interests of keeping my soon-to-be-landlord happy, I'm looking at building a wireless LAN rather than making holes in the 13-month-old house I'm about to move into. Can anyone recommend any particular equipment, suppliers, sources of information? It'll only be a small network to start with - five systems, though it'll grow; I have a nasty habit of accumulating junk :P Many thanks Richard -- Richard Stevenson, Systems Specialist, Xtra Limited Phone: +64 9 355 5231 Mobile: +64 25 290 3101 Pager: +64 26 100 155 "Visual $ANYTHING" just screams out "100% suckage or your money back". -- Tanuki the Raccoon-dog, in the Monastery --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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This is not London calling
by Juha Saarinen 31 Aug '01

31 Aug '01

pts/1 juha(a)vimfuego:~$ ping news.bbc.co.uk ping: unknown host news.bbc.co.uk Kerrap. Jetstream? Or somewhere else? bash-2.05$ ping news.bbc.co.uk PING newswww.bbc.net.uk (212.58.226.40): 56 data bytes 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 420b 0 0000 01 01 8ae0 210.48.100.42 212.58.226.40 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 420d 0 0000 01 01 8ade 210.48.100.42 212.58.226.40 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 420e 0 0000 01 01 8add 210.48.100.42 212.58.226.40 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 420f 0 0000 01 01 8adc 210.48.100.42 212.58.226.40 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 4210 0 0000 01 01 8adb 210.48.100.42 212.58.226.40 36 bytes from 202.84.249.66: Time to live exceeded Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 5400 4211 0 0000 01 01 8ada 210.48.100.42 212.58.226.40 Hrrmmm... bash-2.05$ traceroute 212.58.226.40 traceroute to 212.58.226.40 (212.58.226.40), 30 hops max, 40 byte packets 1 210.48.100.1 (210.48.100.1) 1.975 ms 2.543 ms 1.746 ms 2 s0.ts9.ak.nz.asiaonline.net (210.48.2.1) 12.198 ms 12.155 ms 14.796 ms 3 f1-0.gw2.ak.nz.asiaonline.net (202.14.100.254) 53.810 ms 12.707 ms 12.221 ms 4 f0-0.gw1.ak.nz.asiaonline.net (210.48.1.1) 12.617 ms 12.623 ms 13.230 ms 5 g0-1-0-221.b4.sxb.tsnz.net (203.98.4.205) 13.391 ms 13.481 ms 12.665 ms 6 GE0-0-0.nzsx-core1.Auckland.telstra.net (203.98.4.3) 16.891 ms 22.031 ms 18.472 ms 7 GigabitEthernet4-0-0.nzsx-core2.Auckland.net.reach.com (203.50.126.58) 26.852 ms 26.061 ms 22.163 ms 8 202.84.249.129 (202.84.249.129) 153.251 ms 153.572 ms 146.691 ms 9 202.84.249.66 (202.84.249.66) 227.914 ms 228.862 ms 224.985 ms 10 202.84.249.65 (202.84.249.65) 229.739 ms 221.260 ms 231.744 ms 11 202.84.249.66 (202.84.249.66) 309.732 ms 308.025 ms 305.737 ms 12 202.84.249.65 (202.84.249.65) 307.482 ms 300.437 ms 319.887 ms 13 202.84.249.66 (202.84.249.66) 456.585 ms 383.322 ms 377.616 ms 14 202.84.249.65 (202.84.249.65) 375.120 ms 377.874 ms 376.425 ms 15 202.84.249.66 (202.84.249.66) 453.441 ms 454.953 ms 457.326 ms 16 202.84.249.65 (202.84.249.65) 458.146 ms 454.757 ms 449.970 ms 17 202.84.249.66 (202.84.249.66) 536.290 ms 532.411 ms 533.366 ms 18 202.84.249.65 (202.84.249.65) 530.822 ms 592.469 ms 526.726 ms 19 202.84.249.66 (202.84.249.66) 602.030 ms 601.476 ms 607.230 ms 20 202.84.249.65 (202.84.249.65) 605.603 ms 627.870 ms 605.202 ms 21 202.84.249.66 (202.84.249.66) 682.281 ms 687.296 ms 675.443 ms 22 202.84.249.65 (202.84.249.65) 680.571 ms 679.806 ms 677.157 ms 23 202.84.249.66 (202.84.249.66) 755.965 ms 775.068 ms 757.381 ms 24 202.84.249.65 (202.84.249.65) 758.296 ms 754.893 ms 764.393 ms 25 202.84.249.66 (202.84.249.66) 833.034 ms 834.038 ms 832.465 ms 26 202.84.249.65 (202.84.249.65) 833.672 ms 832.952 ms 836.438 ms 27 202.84.249.66 (202.84.249.66) 910.692 ms 911.639 ms 910.117 ms 28 202.84.249.65 (202.84.249.65) 906.542 ms 908.851 ms 908.012 ms 29 202.84.249.66 (202.84.249.66) 991.594 ms 986.891 ms 987.188 ms 30 202.84.249.65 (202.84.249.65) 988.047 ms 985.131 ms 1053.931 ms bash-2.05$ whois -h whois.apnic.net 202.84.249.65 % Rights restricted by copyright. See http://www.apnic.net/db/dbcopyright.html % (whois6.apnic.net) inetnum: 202.84.248.0 - 202.84.251.255 netname: FIJI-HK descr: Fiji descr: 41/F, Telecom Tower descr: Taikoo Place, Quarry Bay descr: HK country: HK admin-c: AC11-HK tech-c: PW6-HK rev-srv: rs.hkt.net rev-srv: nsx.hkt.com notify: dbmon(a)apnic.net mnt-by: MAINT-HKT changed: wwong(a)hkt.net 960814 source: APNIC person: Aurea Cheung address: 41/F, Telecom Tower address: Taikoo Place, Quarry Bay address: HK phone: +852-28830025 fax-no: +852-29625290 nic-hdl: AC11-HK notify: dbmon(a)apnic.net mnt-by: MAINT-HKT changed: wwong(a)hkt.net 960814 source: APNIC person: Philip Watt address: 41/F, Telecom Tower address: Taikoo Place, Quarry Bay address: HK phone: +679-311300 nic-hdl: PW6-HK notify: dbmon(a)apnic.net mnt-by: MAINT-HKT changed: wwong(a)hkt.net 960814 source: APNIC -- Juha Saarinen --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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FW: Wireless LAN equipment
by Steven Perich 30 Aug '01

30 Aug '01

> Security, both physical and systems, is of utmost importance. The couch > might seem a perfect place to rack mount your equipment however it is by no > means secure. I would recommend mounting the switch and any other equipment > in a lockable cabinet, such as the oven (true geeks don't cook) and running > cable through a duct drilled through the back of it. Additionally, > electronic locking systems can be bolted to the hinged door and survelliance > installed throughout the kitchen. And the warmer drawer makes an ideal > place to store a change notebook, extra patch leads, etc. Oh! I almost forgot. After you've mounted your switch/router/firewall etc in your oven cum 19" rack, you can take advantage of the convenient Window Kit already installed. As well as being able to look in and watch the Pretty Blinking Lights(tm) at your convenience, you could install a neon light stick (such as http://www.thinkgeek.com/stuff/fun-stuff/3738.shtml) and wire it up to the oven's light switch! Other enhancements; lining the inside of the oven with black speaker box carpet and buying a small tubular lava lamp and strategically place it for maximum effect. :-) BTW: What the hell's this? http://www.eurus.dti.ne.jp/~yoshi-w/audio/zoom2/auto9.jpg Reckon it might end up on our shores in about 5 years time? Steve --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog

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RE: Wireless LAN equipment
by Sharpe, Russell 30 Aug '01

30 Aug '01

Hi Richard, If you only need 2Meg, rather than 11Meg, there are hundreds of 2M cards on the market cheap, which you could use in an "Ad Hoc" or Personal Area Network of about 20 metres. I have a couple that I could fire off to you if you so desire (I haven't the drivers, but I know that you are resourceful) Russell Sharpe -----Original Message----- From: Richard Stevenson [mailto:richard.stevenson(a)team.xtra.co.nz] Sent: Friday, 31 August 2001 17:02 To: nznog(a)list.waikato.ac.nz Subject: Wireless LAN equipment Hi all In the interests of keeping my soon-to-be-landlord happy, I'm looking at building a wireless LAN rather than making holes in the 13-month-old house I'm about to move into. Can anyone recommend any particular equipment, suppliers, sources of information? It'll only be a small network to start with - five systems, though it'll grow; I have a nasty habit of accumulating junk :P Many thanks Richard -- Richard Stevenson, Systems Specialist, Xtra Limited Phone: +64 9 355 5231 Mobile: +64 25 290 3101 Pager: +64 26 100 155 "Visual $ANYTHING" just screams out "100% suckage or your money back". -- Tanuki the Raccoon-dog, in the Monastery --------- 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

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