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DNS has Failed

Terry Brummell

DNS has Failed
« on: December 12, 2001, 05:20:07 AM »
Well, the subject says it all, DNS resolution has quit working.  I rebooted the server out of habit, and when it came back up I'm now unable to resolve FQDN's.  Just to make sure it wasn't a problem on my cable provider's network, I've added one of their dns server's to my TCP/IP info on this 2K machine, now I can get on the net, if I remove it, DNS resolution fails.
I've checked some of the log files and don't see anything out of the ordinary.

I did try a nslookup from the SME v5:
[root@pdc /root]# nslookup www.yahoo.com
Server:  localhost
Address:  127.0.0.1

*** localhost can't find www.yahoo.com: Non-existent host/domain

Then from my 2K machine:
C:\>nslookup www.yahoo.com
Server:  pdc.brummell.net
Address:  192.168.12.1

DNS request timed out.
    timeout was 2 seconds.
*** Request to pdc.brummell.net timed-out

And from my server status page I see everything looks fine:
The following SME Server V5.0 ports and services appear:

[21] FTP Server: Running (192.168.12.1)
[22] SSH Server: Running (192.168.12.1)
[23] TELNET Server: Down (192.168.12.1)
[25] SMTP Mail Server: Running (192.168.12.1)
[80] HTTP Web Server: Running (192.168.12.1)
[110] POP3 Mail Server: Running (192.168.12.1)
[143] IMAP Mail Server: Running (192.168.12.1)
[389] LDAP Server: Running (192.168.12.1)
[443] SSL Web Server: Running (192.168.12.1)
[980] Server-Manager: Running (192.168.12.1)
[981] SSL Server-Manager: Running (192.168.12.1)
[3128] SQUID Server: Running (192.168.12.1)
[3306] MySQL Server: Running (192.168.12.1)

I'm out of idea's, I don't see anything strange in the boot and messages log files, and DNS isn't listed as a service.
Any idea's from the more experienced people out there??

Terry

Terry Brummell

Re: DNS has Failed
« Reply #1 on: December 12, 2001, 05:23:06 AM »
I should also add:
I did add the ISP's DNS server to the Master DNS Server in the SME v5's configuration and rebooted, it made no difference.

Terry Brummell wrote:
>
> Well, the subject says it all, DNS resolution has quit
> working.  I rebooted the server out of habit, and when it
> came back up I'm now unable to resolve FQDN's.  Just to make
> sure it wasn't a problem on my cable provider's network, I've
> added one of their dns server's to my TCP/IP info on this 2K
> machine, now I can get on the net, if I remove it, DNS
> resolution fails.
> I've checked some of the log files and don't see anything out
> of the ordinary.
>
> I did try a nslookup from the SME v5:
> [root@pdc /root]# nslookup www.yahoo.com
> Server:  localhost
> Address:  127.0.0.1
>
> *** localhost can't find www.yahoo.com: Non-existent
> host/domain
>
> Then from my 2K machine:
> C:\>nslookup www.yahoo.com
> Server:  pdc.brummell.net
> Address:  192.168.12.1
>
> DNS request timed out.
>     timeout was 2 seconds.
> *** Request to pdc.brummell.net timed-out
>
> And from my server status page I see everything looks fine:
> The following SME Server V5.0 ports and services appear:
>
> [21] FTP Server: Running (192.168.12.1)
> [22] SSH Server: Running (192.168.12.1)
> [23] TELNET Server: Down (192.168.12.1)
> [25] SMTP Mail Server: Running (192.168.12.1)
> [80] HTTP Web Server: Running (192.168.12.1)
> [110] POP3 Mail Server: Running (192.168.12.1)
> [143] IMAP Mail Server: Running (192.168.12.1)
> [389] LDAP Server: Running (192.168.12.1)
> [443] SSL Web Server: Running (192.168.12.1)
> [980] Server-Manager: Running (192.168.12.1)
> [981] SSL Server-Manager: Running (192.168.12.1)
> [3128] SQUID Server: Running (192.168.12.1)
> [3306] MySQL Server: Running (192.168.12.1)
>
> I'm out of idea's, I don't see anything strange in the boot
> and messages log files, and DNS isn't listed as a service.
> Any idea's from the more experienced people out there??
>
> Terry

Terry Brummell

Re: DNS has Failed
« Reply #2 on: December 13, 2001, 04:10:10 AM »
Can anyone answer this.....at all??


Terry Brummell wrote:
>
> I should also add:
> I did add the ISP's DNS server to the Master DNS Server in
> the SME v5's configuration and rebooted, it made no difference.
>
> Terry Brummell wrote:
> >
> > Well, the subject says it all, DNS resolution has quit
> > working.  I rebooted the server out of habit, and when it
> > came back up I'm now unable to resolve FQDN's.  Just to make
> > sure it wasn't a problem on my cable provider's network, I've
> > added one of their dns server's to my TCP/IP info on this 2K
> > machine, now I can get on the net, if I remove it, DNS
> > resolution fails.
> > I've checked some of the log files and don't see anything out
> > of the ordinary.
> >
> > I did try a nslookup from the SME v5:
> > [root@pdc /root]# nslookup www.yahoo.com
> > Server:  localhost
> > Address:  127.0.0.1
> >
> > *** localhost can't find www.yahoo.com: Non-existent
> > host/domain
> >
> > Then from my 2K machine:
> > C:\>nslookup www.yahoo.com
> > Server:  pdc.brummell.net
> > Address:  192.168.12.1
> >
> > DNS request timed out.
> >     timeout was 2 seconds.
> > *** Request to pdc.brummell.net timed-out
> >
> > And from my server status page I see everything looks fine:
> > The following SME Server V5.0 ports and services appear:
> >
> > [21] FTP Server: Running (192.168.12.1)
> > [22] SSH Server: Running (192.168.12.1)
> > [23] TELNET Server: Down (192.168.12.1)
> > [25] SMTP Mail Server: Running (192.168.12.1)
> > [80] HTTP Web Server: Running (192.168.12.1)
> > [110] POP3 Mail Server: Running (192.168.12.1)
> > [143] IMAP Mail Server: Running (192.168.12.1)
> > [389] LDAP Server: Running (192.168.12.1)
> > [443] SSL Web Server: Running (192.168.12.1)
> > [980] Server-Manager: Running (192.168.12.1)
> > [981] SSL Server-Manager: Running (192.168.12.1)
> > [3128] SQUID Server: Running (192.168.12.1)
> > [3306] MySQL Server: Running (192.168.12.1)
> >
> > I'm out of idea's, I don't see anything strange in the boot
> > and messages log files, and DNS isn't listed as a service.
> > Any idea's from the more experienced people out there??
> >
> > Terry