Re: [squid-users] DNS double query

On Fri, 9 Apr 2004, dtom wrote:

> I got following snoop output and cache.log while accessing http://www.mail-archive.com/.
> H.H.H.H is squid box IP and A.A.A.A is DNS IP.
> You can see sets of double queries and responses. Query line was very quickly shown after
> response line was shown.
> Two "idnsRead: FD 6: received 124 bytes from A.A.A.A." are written to cache.log.
> I don't want squid to query twice.
>
> # snoop -r -d hme0 port 53
> Using device /dev/hme (promiscuous mode)
> H.H.H.H -> A.A.A.A DNS C www.mail-archive.com. Internet Addr ?
> H.H.H.H -> A.A.A.A DNS C www.mail-archive.com. Internet Addr ?

Please include timing details. Have no use of these traces unless there is
timing details.

> 2004/04/09 13:47:56| aclCheck: checking 'always_direct allow EADDR'
> 2004/04/09 13:47:56| aclMatchAclList: checking EADDR
> 2004/04/09 13:47:56| aclMatchAcl: checking 'acl EADDR dst D.D.D.D/12 E.E.E.E/16'
> 2004/04/09 13:47:56| ipcache_gethostbyname: 'www.mail-archive.com', flags=1

Ok, this I have not tried. Maybe there is some slight error in
acl processing causing the double DNS lookup.

Regards
Henrik
Received on Fri Apr 09 2004 - 03:32:33 MDT