Name resolution

[Marcos Ortiz]

Regards, Eric
Are you using a proxy for Internet connection? Because, this kind of 
issues I've seen on it.

1- I think that you have to check your /etc/resolv.conf which are the 
entries that you have there.

2- The second advice that I give you is to analyze your network 
connection (rates, bandwidth, etc). You can use
tcpdump
- sar(included on the systat package 
http://pagesperso-orange.fr/sebastien.godard/) for all kind of statistics.
For the network stats, you can use sar -n DEV | more

- netstat: only focused on the network statistics
   a example: netstat --statistics --raw

- traceroute: this is very useful for tracking down the cause
of disappearing packages
   a example: traceroute host_name

3- You have to check the /etc/nsswitch.conf, which is the main 
responsible of the name resolution in Solaris and Linux. You will
check too the nscd daemon

I hope that's can help you


On 07/04/2011 09:56 AM, Eric Tanguy wrote:
> Since few days now i have a name resolution problem. For example when i
> entrer a new address in firefox it returns that the name can't be
> resolved. Reloading the page and firefox display fine the page. I have
> the same problem from thunderbird or cli using yum.
> The network is up using network manager with ethernet and dhcp. The name
> server is the box ip. This configuration is the same as other pc on the
> same network and these pc don't have any problem so i think the problem
> is specific to this f15 machine but i don't how to investigate.
> Any help ?
> Thanks
> Eric
>

-- 
Marcos Luís Ortíz Valmaseda
  Software Engineer (UCI)
  Linux User # 418229
  http://marcosluis2186.posterous.com
  http://twitter.com/marcosluis2186