Sporatic DNS resolution. 2005-11-30 - By Elam Daly
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Hi all,
We have a Redhat ES server that has a 3 entries in it's /etc/resolv.conf
file. One is the local DNS server, and the other two are our ISP's DNS
servers.
The odd thing is that up until a month ago every thing was working fine, but
now we are suddenly having name resolution problems and they aren't
consistent. The ES server is also our mail server and it can't consistently
resolve namespaces for other mail servers, sometimes it does other times it
simply times out. Our other server in the company, or other computers for
that matter have problem resolving names using the exact same DNS servers.
Isn't /etc/resolv.conf the only file that matters in this regard? Can
anyone suggest some test to try and pinpoint what's going on? I've tried
the usual: ping, dig, etc.
Thanks,
Elam Daly
Whiteware Inc
Hi all,<br><br>We have a Redhat ES server that has a 3 entries in it's /etc
/resolv.conf file. One is the local DNS server, and the other two are our
ISP's DNS servers.<br><br>The odd thing is that up until a month ago every
thing was working fine, but now we are suddenly having name resolution problems
and they aren't consistent. The ES server is also our mail server and it
can't consistently resolve namespaces for other mail servers, sometimes it does
other times it simply times out. Our other server in the company, or
other computers for that matter have problem resolving names using the exact
same DNS servers.
<br><br>Isn't /etc/resolv.conf the only file that matters in this regard?
Can anyone suggest some test to try and pinpoint what's going on? I've
tried the usual: ping, dig, etc.<br><br>Thanks,<br>Elam Daly<br>Whiteware Inc
<br><br>
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