domain names not resolving
blists at nobaloney.net
Thu Mar 22 14:53:13 UTC 2007
On Wednesday 21 March 2007 02:14 am, Lucien GENTIS wrote:
> It could be a problem in case of a host which should use this DNS
> server for name resolving
> and have "dns, files" in its nsswitch.conf.
> Wouldn't any call to localhost be resolved to 220.127.116.11 instead
> of 127.0.0.1 ?
Notice the lack of trailing dot on "localhost"; the nameserver will
return 18.104.22.168 only for calls to "localhost.kirkyonline.com".
While many zonefiles continue to have a localhost.<domain> construct
I'm not sure that anything ever uses it, even if anything ever did.
> >> In addition, if ns0 corresponds to 22.214.171.124 ,
> >> I think www and mail must have CNAME records instead of A record
> >> since they correspond to the same IP address.
There are almost no advantages to using CNAME to point to a field in the
same zone (the only advantage is that you'll only have to change the
IP# once if/when you ever have to change the IP# in the zonefile), and
one major disadvantage; every lookup for (for example www) becomes two
Jeff Lasman, Nobaloney Internet Services
P.O. Box 52200, Riverside, CA 92517
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