Sounds like a bad routing table. Like the resolve file is set right but the return route for the packets is bad. Had something similar with a win2k box and Pcanywhere. It would receive the first packet but couldn't return them.
A bad routing table on this Redhat v9 box, or a bad routing table on the next hop router?
I don't see how routing could be an issue: All other services (web, ssh, etc) work 100% from and to this box. The only problem is with DNS, and _only_ with www.apple.com, and www.yahoo.com.
Something someone else picked up:
Both www.apple.com and www.yahoo.com are CNAMEs for www.apple.com.akadns.net and www.yahoo.akadns.net respectively.
An attempt to connect to http://akadns.net returns a redirect to http://www.akadns.net, an address which does not exist.
Anybody heard of Akadns before? Anyone know why a Redhat v9 box cannot resolve their queries specifically?
Regards, Graham --
-----Original Message-----
From: Graham Leggett [mailto:[EMAIL PROTECTED] Sent: Friday, September 05, 2003 9:11 AM
To: [EMAIL PROTECTED]
Subject: DNS problems from the twilight zone
Hi all,
I have a Redhat v9 box that is incapable of resolving certain specific DNS addresses, but it can resolve others. Addresses that work:
www.google.com www.is.co.za www.anazi.co.za
Addresses that do not work:
www.yahoo.com www.apple.com
An attempt to resolve the packet looks like this:
[EMAIL PROTECTED] root]# dig www.yahoo.com @196.4.160.2
; <<>> DiG 9.2.1 <<>> www.yahoo.com @196.4.160.2 ;; global options: printcmd ;; connection timed out; no servers could be reached
When tcpdump is used to sniff the connection, the following is shown:
14:21:55.641265 168.209.124.18.32839 > 196.4.160.2.domain: 57497+ A? www.yahoo.com. (31) (DF) 14:22:00.653797 168.209.124.18.32839 > 196.4.160.2.domain: 57497+ A? www.yahoo.com. (31) (DF)
Two packets go out, nothing comes back.
When the next hop router is sniffed, it shows the packets go out, and it shows packets being returned - the Linux box (or something) is dropping the return packets before they reach tcpdump.
Anyone seen anything like this before?
Regards, Graham
--
-----------------------------------------
[EMAIL PROTECTED] "There's a moon
over Bourbon Street
tonight..."
-- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
