Wonder which rules hes quoting? :P Its probably 'bad practise' to leave A records in place to a server that isn't wanting to see traffic destined to that hostname. But there are numerous instances of deliberately setting A records for a domain hosted in location X, to a server located in location Y. If there are A records theyre probably legacy, to some historic and once-valid server. Certainly if the administrator of a server somewhere sees someone putting A records into the DNS pointing at their box, I think it'd be fair to honour valid requests to have those A's removed - but theres no 'rule' im aware of around this. I think its much like other 'netiquette' issues and something which is not set in stone yet is expected as a matter of course online, being considerate to your fellow netizen, etc. If the A records cause problems and the person administering the system in question is complaining, the right thing to do is pull the records. And whilst the 'victim' of the 'problems' is probably quite unhappy about unwanted traffic (it may be a DoS or costing them $) theres no obligation (other than moral) to do it. That said if it is a DoS of some sort and you don't take reasonable actions to assist where youre in a position to do so, well, thats another set of risks in the eyes of the law... (Be glad we're not in the USA). IMHO Only. Mark. On Tue, 22 Nov 2005, Stu Fleming wrote:
I have a...friend, let's say...who operates a DNS server at a small ISP. In a few of the zone files, there are A records that resolve to IP addresses outside of the Class C that my..friend...controls. My friend has been told that this is "against the rules" and that it is "causing problems".
Questions: - is resolving an A record outwith the delegated IP range "against the rules"? - if so, is there any documentation of the rules? - what potential problems could this cause to the network that contains the IP address to which the A records point?
Thanks for any advice. Regards, Stu
_______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog