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DNS Server lost after NAC Upgrade to 6.1.X

DNS Server lost after NAC Upgrade to 6.1.X

Michael_Kirchne
Contributor

‎03-11-2015 01:14 PM

After I upgraded a few NAC Appliances from 5.X to 6.1.X or from 6.1.X to latest 6.1.182 I had sometimes the problem that NAC lost its DNS Server information in the /etc/resolvresolv.conf.

After dnetconfig (without changing something) all worked fine again.

Does anybody know a reason for that? It doen't happen on every appliance.

Best Regards
Michael
10 REPLIES 10

James_A
Valued Contributor

‎04-08-2015 01:43 AM

Drew, that's exactly it. Would have replied earlier but I couldn't get the Extreme login to the community to work on my mobile.
0 Kudos

Drew_C
Valued Contributor III

‎04-08-2015 01:43 AM

I believe he's referring to the GTAC case he has opened 
0 Kudos

Michael_Kirchne
Contributor

‎04-08-2015 01:43 AM

Ok, great investigation! But I still don't get (sorry!) what you mean with "I got around to filing 01124098 on this"
0 Kudos

James_A
Valued Contributor

‎04-08-2015 01:43 AM

OK, so we have the same setup. Ubuntu ifupdown doesn't like it if two interfaces have a gateway. dnetconfig (and well /etc/init.d/staticroutes) does something different that does work, by using Linux routing tables from the look of it. This makes ifupdown not complete on boot, so DNS (which it configures) isn't configured either.
0 Kudos
GTM-P2G8KFN