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Linux - Networking This forum is for any issue related to networks or networking.
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Old 06-06-2004, 05:06 PM   #1
smiorgian
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Registered: Jun 2004
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DNS suddenly not working?


Dear all, hope you can offer some advice with this as its driving me crazy I've spent the last week getting SUSE 9.1 working perfectly, suddenly the internet connection had crapped out!

I connect to the net using an ethernet card connected to a Netgear ADSL router. Ever since this morning when I try and browse the net using either Konqueror or Mozilla I get a "Domain not found" or "Unable to resolve address" message. Trying to check email gives me a "Connection timed out" message and YOU gives up trying to find updates.

I think the router and NIC are working because I can ping the router using its IP number.

I'm sure that since yesterday I have made no config. changes. The only thing that I've done is booted into Gnome rather than KDE just to check it out. (Never tried it before.)

Any help much appreciated.

Regards.
 
Old 06-06-2004, 05:10 PM   #2
david_ross
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Can you post the output from:
ping -c3 www.linuxquestions.org
ping -c3 64.179.4.149
traceroute 64.179.4.149

What your /etc/resolv.conf file contain? Are the DNS server addresses correct?
 
Old 06-06-2004, 05:15 PM   #3
smiorgian
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Thanks for thwe quick reply!

Well Im on a windows machine in work at the moment so can't check now, but will post again in the morning when I get home.

Being very new to Linux I'm still feeling my way a little but I'm assuming what you've asked me to try is using the IP to connect to this site thus bypassing DNS?

When you ask if the DNS server address is correct; well I assume it is, When I Upgraded from windows to Linux I just stuck the disk in and it configured everything for me, and like I said it was all working fine until today. I didn't have to enter any settings manually for either the pc or the router.
 
Old 06-06-2004, 05:25 PM   #4
david_ross
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Quote:
Originally posted by smiorgian
Being very new to Linux I'm still feeling my way a little but I'm assuming what you've asked me to try is using the IP to connect to this site thus bypassing DNS?
Yes - these are pretty simple network tests that should work on almost all OSs. The traceroute is slightly different as it traces the path to the destination so you can see if the connection times out in your network or if it gets out passed your ISP etc.

Quote:
Originally posted by smiorgian
When you ask if the DNS server address is correct; well I assume it is, When I Upgraded from windows to Linux I just stuck the disk in and it configured everything for me, and like I said it was all working fine until today. I didn't have to enter any settings manually for either the pc or the router.
In that case you are probbaly on DHCP and it will be assigned automatically. You could also try running:
dhcclient

This will request a new lease from the router and should pick up any settings if they have changed etc.
 
Old 06-06-2004, 05:29 PM   #5
smiorgian
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I'll give it a shot, thanks. Guess I'll have to print this thread out and take it home to try.

Just like the good old days of writing things down before the internet!
 
  


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