We've moved to a new support system!

The Nagios Answer Hub is a place where you can get help with technical questions from our experts. There, you can quickly open tickets and join discussion boards.

Request Nagios Answer Hub access here: https://info.nagios.com/answer-hub-access-new-users

After completing the access form, you will be given access to a portal where new tickets can be created. We will keep the old customer forum sections and ticket system available for current cases to be resolved.

Go to the Answer Hub

Old DNS names "stuck" in NNA

This board is for support questions relating to Nagios Network Analyzer

Old DNS names "stuck" in NNA

Postby bqb » Tue Mar 08, 2022 2:43 pm

We have numerous names that NNA has latched on to, even though the DNS names have changed--some more than three years ago. They've been verified to be correct in DNS, NNA is using the authoritative DNS servers for our domain, and we are not running any caching service like nscd. I've tried flipping hostname resolution on and off and on within NNA.

How do we get NNA to always use the correct entries in DNS and not grab onto old entries? How can I purge from NNA any cached hostnames, because it is NOT the the NNA host that's doing this. The problem definitely lies in within the NNA software. The system has been patched and rebooted dozens of times since this problem was first discovered a few years ago. I just didn't realize how widespread it has become within NNA.
Posts: 5
Joined: Wed Nov 01, 2017 2:05 pm

Re: Old DNS names "stuck" in NNA

Postby bqb » Tue Mar 08, 2022 2:51 pm

We are running v2.4.3.
Posts: 5
Joined: Wed Nov 01, 2017 2:05 pm

Re: Old DNS names "stuck" in NNA

Postby pbroste » Thu Mar 10, 2022 5:53 pm

Hello @bqb

Thanks for reaching out and want to find out if you have toggled "Resolve Hostnames in:" by going to Administration > Global Settings and check the boxes in this section "Resolve Hostnames in:". By toggling do you see the correct IP address?

What ya see:

nslookup xxx.xxx.xxx.xxx #or
nslookup yourhostnamehere

Please let us know how things are looking,
User avatar
Posts: 1281
Joined: Tue Jun 01, 2021 1:27 pm

Return to Nagios Network Analyzer

Who is online

Users browsing this forum: No registered users and 1 guest