network namespaces

network namespaces

[gagandeep singh]

hi,

 

i am working on network name spaces from last 1 month . i have make a namespace configure all . and make a bridge simply using linux bridge "brctl" .everything is working fine but there is problem regarding domain name server in network namespace when i ping in network name space as 

ip netns exec myvpn ping 8.8.8.8

it works fine

but when i ping as

ip netns exec myvpn ping www.google.com

just error as ping:unknown host

after i see i should use file resolv.conf in /etc/netns/myvpn/

so i copy reolve .conf file from /etc/resolv.conf and resolvconf directory to /etc/netns/myvpn/

now when i ping in netnamespace

"i get error

bind:etc/netns/myvpn/resolve --> /etc/resolve.conf failed no such directory

time out"

please help me how to resolve it thanks 

 

Gagan

 

 

 
 		 	   		  

Re: network namespaces

[Eric W. Biederman]

gagandeep singh <gaganthaparian-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org> writes:

> hi,
>
>  
>
> i am working on network name spaces from last 1 month . i have make a namespace configure all . and make a bridge simply using linux bridge "brctl" .everything is working fine but there is problem regarding domain name server in network namespace when i ping in network name space as 
>
> ip netns exec myvpn ping 8.8.8.8
>
> it works fine
>
> but when i ping as
>
> ip netns exec myvpn ping www.google.com
>
> just error as ping:unknown host
>
> after i see i should use file resolv.conf in /etc/netns/myvpn/
>
> so i copy reolve .conf file from /etc/resolv.conf and resolvconf directory to /etc/netns/myvpn/
>
> now when i ping in netnamespace
>
> "i get error
>
> bind:etc/netns/myvpn/resolve --> /etc/resolve.conf failed no such directory
>
> time out"
>
> please help me how to resolve it thanks 


It sounds like your dns server specified in /etc/resolv.conf is simply
not reachable from your network namespace.

Without at least a shell script to reproduce what you have done I don't
expect anyone will be able to help you.

Eric