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Old 04-13-2005, 05:37 AM   #1
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Registered: Dec 2002
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DNS: connection timed out; no servers could be reached


i'm running an SMTP server on my LAN. I also setup a DNS server, which resolvs host in my LAN. I put the nameservers of my ISP into /etc/bind/named.conf as forwarders. The nameserver set in /etc/resolv.conf is

From time to time, i notice, that there are queued messsages to mailboxes.

Doing then

dig mx


; <<>> DiG 9.2.1 <<>> mx
;; global options: printcmd
;; connection timed out; no servers could be reached

Still i can resolve enything else, but not yahoo. I tried to add a forwarder of another ISP which certainly could resolve (dig @ip-on-another-isp mx suceeded) yahoo, but i still got that error message.

Have you an idea, why does this fail? Is there something misconfiguread at my LAN's DNS server?

Old 04-13-2005, 11:45 AM   #2
Registered: Dec 2003
Location: Northern VA
Posts: 493

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Put the DNS servers in /etc/resolv.conf, if you want, put your IP address first, then your ISPs DNS servers 2nd and 3rd.

Then check your /etc/nsswitch.conf to make sure it goes files dns


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