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
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