cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

Choose one of the topics below for ISE Resources to help you on your journey with ISE

This community is for technical, feature, configuration and deployment questions.
For production deployment issues, please contact the TAC!
We will not comment or assist with your TAC case in these forums.

379
Views
0
Helpful
5
Replies
Highlighted
Beginner

Alarms: Configured nameserver is down

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

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: Alarms: Configured nameserver is down

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

5 REPLIES
Cisco Employee

Re: Alarms: Configured nameserver is down

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

Beginner

Re: Alarms: Configured nameserver is down

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

Cisco Employee

Re: Alarms: Configured nameserver is down

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

Beginner

Re: Alarms: Configured nameserver is down

Restart didn't help. I'll open a TAC case.

Regards,

Maja

Cisco Employee

Re: Alarms: Configured nameserver is down

CSCvh02628 might be related to your issue.

CreatePlease to create content
Ask the Expert- Webex Hybrid Services Solutions