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Beginner

Changing DNS domain of UCS fabric interconnect management interfaces

What is the least disruptive process of changing the DNS domain of the UCS fabric interconnect management interfaces in a prod environment?  Can this be done of the fly?  Is it as simple as changing the domain name is the UCS Mgr GUI?  Will the fabric interconnects reboot?

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Cisco Employee

Re: Changing DNS domain of UCS fabric interconnect management interfaces

Hello

Changing domain name does not require reboot of FI or restart of services.

You need to re-generate the http certs of FI after changing the domain name.

Thanks

Padma

3 REPLIES 3
Beginner

Re: Changing DNS domain of UCS fabric interconnect management interfaces

Hi Chris

Slightly different but it'll hopefully help you: I changed the management IP addresses, leaving the DNS domain name identical, the other day, on one of my UCS domains. There was no outage - the FIs didn't reboot but I did get kicked out of UCSM and had to log in again of course.

I had to resort to using the console port to do the work as my network admin had already change the management port config.

Cheers

Richard

Cisco Employee

Re: Changing DNS domain of UCS fabric interconnect management interfaces

Hello

Changing domain name does not require reboot of FI or restart of services.

You need to re-generate the http certs of FI after changing the domain name.

Thanks

Padma

Beginner

Re: Changing DNS domain of UCS fabric interconnect management interfaces

Thanks Richard & Padma. I was able to change the domain name from the UCSM and then regenerated the certs from the cmd line.  No reboots necessary. Thanks for your help!

- Chris

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