I'm at a client's site so I can't test this or be more specific but this sounds to me like the host key of the "old" machine is cached in the client and it does not match the host key of the machine now residing at that IP. You can test this by using the HostKeyAlias parameter when you connect from the client and setting it to any arbitrary name NOT in actual use on your network. It should ask you if you accept the new host key and then connect automatically after that as long as the same HostKeyAlias is supplied. You can fix it by clearing the key for that IP address on the client but I don't remember where it's located and am not able to pursue it right now.
Maybe this will point you in the right direction... On Wed, Oct 2, 2013 at 4:22 PM, Curt Lundgren <[email protected]> wrote: > I've just built a couple of CentOS 6.4 machines, and need to use a > no-password RSA key login to root. No flames please about logging in as > root. > > Had it working on both machines, but when I changed the "main" IP address > so the new machine could take over for an ailing one, the login capability > was lost. I can do a password login, but not with the RSA key. > > Thought it might be the server SSH keys, as though they're somehow tied to > IP addresses, so I regenerated them. No joy. I've tried logging in from a > couple of different boxes (Linux and Mac), still no joy. > > The other server got built, got its "main" IP address changed, and is > working just fine. I did a diff between sshd_config on both machines; the > files are identical. > > I'm scratching my head and it's starting to hurt. Any ideas? (I know, > stop scratching.) > > Curt > > -- > -- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nlug-talk?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en --- You received this message because you are subscribed to the Google Groups "NLUG" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
