12-07-2017 12:54 AM
Hello!
We have ISE 2.3. Every few hours we get following alarms:
Configured nameserver is down Server=mfcu-ise1
Configured nameserver is down Server=mfcu-ise2
mfcu-ise1 and mfcu-ise2 are names of the ISE servers itself. mfcu-ise1 is primary, mfcu-ise2 is secondary. Both servers have DNS records.
DNS servers are configured on both ISE servers and are working:
ip domain-name carina.local
ip name-server 10.75.9.115 10.75.9.116
mfcu-ise1/admin# nslookup mfcu-ise1
Trying "mfcu-ise1.carina.local"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14982
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;mfcu-ise1.carina.local. IN ANY
;; ANSWER SECTION:
mfcu-ise1.carina.local. 3600 IN A 10.75.15.136
Received 56 bytes from 10.75.9.115#53 in 0 ms
Internal DHCP and DNS services aren't configured. Is it the reason why this alarms appear? How to resolve them? Maybe it is connected, maybe not, but mfcu-ise2 GUI is reachable through its name (https://mfcu-ise2.carina.local) and mfcu-ise1 isn't.
Thank you and best regards,
Maja
Solved! Go to Solution.
12-08-2017 01:57 AM
The nslookup output looks fine .
You can try restarting the node as well. But we would need further troubleshooting to see why you see this . I would suggest you open a TAC case as well to see if this is due to any issues or bug.
Thanks,
Nidhi
12-07-2017 08:27 PM
Hi Maja,
This alarm gets generated when the DNS configuration is not appropriate or some network connectivity issue . The alarm might be because of the primary node not being reachable. Can you please open the alarm and check the details ?
Also, please let me know if there is a TAC case opened for this which I can have a look at .
Thanks,
Nidhi
12-08-2017 01:49 AM
There si no details.
I didn't open a case. I first want to check if answer exists without TAC.
Thank you and regards,
Maja
12-08-2017 01:57 AM
The nslookup output looks fine .
You can try restarting the node as well. But we would need further troubleshooting to see why you see this . I would suggest you open a TAC case as well to see if this is due to any issues or bug.
Thanks,
Nidhi
12-15-2017 12:08 AM
Restart didn't help. I'll open a TAC case.
Regards,
Maja
12-15-2017 07:59 AM
CSCvh02628 might be related to your issue.
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