OpenVZ Forum: Support » DNS not resolving

Home » General » Support » DNS not resolving - IP works

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

DNS not resolving - IP works [message #25146]

Sat, 15 December 2007 23:34

smilie
Messages: 20
Registered: September 2007

Junior Member

Hi,

After rebooting VE's, I can not reach internet from VE anymore Sad

I had same issue some time ago and blast why, oh why did I not write down how I fixed it Sad

Anyway:

1. VE is on a public IP;
2. DNS lookup does not work;
3. Ping on IP works;
4. /etc/resolv.conf is same as on HW (dns lookup on HW works);
5. VE can reach nameservers from resolv.conf

I belive this has something to do with routing from VE to HW to internet.

On HW:
[root@vz]# ip r l
85.31.187.52 dev venet0 scope link
85.31.187.53 dev venet0 scope link
85.31.186.0/23 dev eth0 proto kernel scope link src 85.31.186.66
169.254.0.0/16 dev eth0 scope link
default via 85.31.186.1 dev eth0

If you need any other info, let me know.

HELP! Smile

Regards,
Aleks

Report message to a moderator

Re: DNS not resolving - IP works [message #25155 is a reply to message #25146]

Sun, 16 December 2007 00:31

ugob
Messages: 271
Registered: March 2007

Senior Member

try a traceroute to the DNS servers from the VE

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page

Report message to a moderator

Re: DNS not resolving - IP works [message #25169 is a reply to message #25155]

Sun, 16 December 2007 17:50

smilie
Messages: 20
Registered: September 2007

Junior Member

Don't have it installed Sad

And can not install it from HW.

How can I know to which IP should I route traffic from VE?

My guess is, that network traffic should go from VE to HW to Internet?

And I belive, that routing is not oke. But I have no idea how it works, so do not know what and how to setup Sad

Regards,
Aleks

Report message to a moderator

Re: DNS not resolving - IP works [message #25231 is a reply to message #25169]

Tue, 18 December 2007 09:50

smilie
Messages: 20
Registered: September 2007

Junior Member

Anyone?!

Report message to a moderator

Re: DNS not resolving - IP works [message #25266 is a reply to message #25231]

Wed, 19 December 2007 11:11

smilie
Messages: 20
Registered: September 2007

Junior Member

Oke, solved this one by myself.

Firewall on HN did not allow traffic from VE to pass through. Opened it in iptables and it works like a charm now Smile

Regards,
Aleks

Report message to a moderator

Previous Topic:	[SOLVED] live migration with extra mounts in VE
Next Topic:	CPU resources real / user / system

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Oct 14 09:53:59 GMT 2025

Total time taken to generate the page: 0.23710 seconds