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Re: Dns resolution failure.. [message #3737 is a reply to message #3736] Tue, 13 June 2006 09:36 Go to previous messageGo to previous message
dev is currently offline  dev
Messages: 1693
Registered: September 2005
Location: Moscow
Senior Member
You need to check with tcpdump in the host whether your packets go ok
from VE to host system.
Does networking work correctly from VE when IP addresses are used?

Kirill

> Hey all,
>
> We're seeing a problem where within one particular VE on a host we can
> nslookup or "host" a hostname and everything works.
>
> But when we try running yum update or wget (even to www.google.com) we
> get "Temporary failure in name resolution."
>
> We've dug around on the lists and tried solutions posted there with no
> luck (w.r.t setting forwarding on the main system, etc).
>
> We're also seeing the following in the logs (not sure if it's a
> red-herring or not):
>
> Jun 12 15:48:19 FOO sysctl: net.ipv4.ip_forward = 0
> Jun 12 15:48:19 FOO sysctl: error: unknown error 1 setting key
> 'net.ipv4.conf.default.rp_filter'
> Jun 12 15:48:19 FOO sysctl: error: unknown error 1 setting key
> 'net.ipv4.conf.default.accept_source_route'
> Jun 12 15:48:19 FOO sysctl: error: unknown error 1 setting key
> 'kernel.sysrq'
> Jun 12 15:48:19 FOO sysctl: error: unknown error 1 setting key
> 'kernel.core_uses_pid'
>
>
> I should mention that all other VE's running on the host work without a
> problem.
>
> Any ideas?
>

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