Andrew Meyer via FreeIPA-users wrote:
> I recently cleaned up a few server in my home lab.  Deleted servers that I no 
> longer needed.  However It seems I have a server with an IP address that used 
> previously.  FreeIPA is reporting that it is in 
> /var/lib/sss/pubconf/known_hosts but I can't reverse engineer the hostname by 
> doing sshkey -R 1.2.3.4.  I have run into this issue previously but it has 
> bee quite some time.  When I go to delete the line from 
> /var/lib/sss/pubconf/known_hosts it is gone.  If someone could help me that 
> would be great.  I didn't see anything on my FreeIPA master that indicated I 
> did anything there.

You could nuke it from orbit with sss_cache -H to invalidate the host
SSH pubkey cache on that machine.

Might also be worthwhile, if you use IPA DNS, to see if there are any
leftover entries.

rob
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