Network troubleshooting, any experts?
Elam Daly
elam at comcast.net
Wed Apr 28 20:35:30 UTC 2004
gforte wrote:
> With all (un)due respect, your ISP is probably full of crap. Your
> tcpdumps
> indicate that your UDP connections to the DNS servers are getting
> through,
> at the least. That's why you're able to resolve hostnames. The fact
> that
> your TCP syns never get responded to suggest that they are being blocked
> someplace. If the server is not running any firewall as you say, then
> the
> only other logical place is at the border router.
>
> -g
Does DNS resolve names through UDP? Would that explain why I can't telnet
to port 53 on the DNS servers,yet still get name resolutions? Am I
wrong conceptually
on how DNS works?
Thanks
Elam
More information about the fedora-list
mailing list