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DNS Server IP change on ISE

Gouthami Nair
Beginner
Beginner

Hi All,

Please let me know the ISE CLI command for checking whether a particular DNS IP is reachable or not from ISE.

How can we verify a new dns ip will work before implementing change for existing DNS IP removal and new IPs addition in ISE?.

3 Accepted Solutions

Accepted Solutions

poongarg
Cisco Employee
Cisco Employee

Her is the example, that shows that this dns server is not reachable:

admin/admin# nslookup cisco.com name-server x.x.x.x
Trying "cisco.com"
;; connection timed out; no servers could be reached

 

Working scenario:

admin/admin# nslookup cisco.com name-server x.x.x.x
Trying "cisco.com"
Trying "cisco.com"
Using domain server:
Name: x.x.x.x
Address: x.x.x.x#53
Aliases:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14564
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 75, AUTHORITY: 0, ADDITIONAL: 11

View solution in original post

3 Replies 3

ping [DNS NAME]

 

poongarg
Cisco Employee
Cisco Employee

Her is the example, that shows that this dns server is not reachable:

admin/admin# nslookup cisco.com name-server x.x.x.x
Trying "cisco.com"
;; connection timed out; no servers could be reached

 

Working scenario:

admin/admin# nslookup cisco.com name-server x.x.x.x
Trying "cisco.com"
Trying "cisco.com"
Using domain server:
Name: x.x.x.x
Address: x.x.x.x#53
Aliases:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14564
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 75, AUTHORITY: 0, ADDITIONAL: 11

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