5 Replies Latest reply: Dec 15, 2017 7:59 AM by hslai RSS

Alarms: Configured nameserver is down

m.mojas

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