Solved: DNS issues TC5.1.x

Martin Koch · ‎08-29-2012

Tried to search for it in the Bug Toolkit and in the Forum, but did not find anything related.

I have an endpoint (c40, TC5.1.4) where DNS does not work. Its set up to use static ip and 2 static dns servers, as well as with the default gw.

The firewall guy told me he did not see any port 53 requests and I looked at a tcpdump on the endpoint

and can also confirm that. Interesting enough dns requests go from 127.0.0.1 to 127.0.0.1 port 53,

but not to the external defined ones.

I tried to remove the DNS and re-added them again, no change.

I noticed that the /etc/resolv.conf does not show any entries. (also a ping to a hostname fails).

Anyone stumbled across such an issue and has a tip?

Next step would be to do a factory default reset, but this would also kill the network connection, so I would need somebody on site.

Please remember to rate helpful responses and identify

Danny De Ridder · ‎08-30-2012

Hello,

I am not sure what went wrong in the 1st place when one needs to manually go in an edit the files. I wonder whether the changes will survive a reboot of your system. When rebooting the filesystem and configs are created anew. If your reboot the system all remains working, I would say you are in good shape. If not, need to check the logfiles what went wrong where.

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