When changing ip domain-name do I regenerate RSA keys?

[zlabovic]

Hello,

I have 150 WAN locations that I can only ssh to, with a ip domain name that needs to be slightly changed. WHen changing this, will I have to regenerate the RSA keys as well?

[Collin Clark]

Nope

[jgervia_2]

You don't have to (the key will stay the same, the domain-name is only used when the key is generated). It's still good practices to re-generate the key if you do change the domain, but it's not required.

--Jason

[zlabovic]

I have tried changing only ip domain name.

As it turned out, out of 150 WAN routers, about 80 did not have a problem with this, bat the other 70 did. On 70 of them, there was no way to just change the ip domain name because the ssh refused to work...

I had to regenerate the rsa keys and reload those routers.