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

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Nov 7th, 2006
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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?

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jgervia_2 Tue, 11/07/2006 - 16:54
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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.


zlabovic Wed, 11/08/2006 - 12:21
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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.


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