I would suggest adding "-vvv" to your ssh command. The debugging information will generally show you where the error lies. If that doesn't get it, you can also change the LogLevel in /etc/ssh/sshd_config from INFO (default) to DEBUG, restart sshd, and look at your system logs.
On Wed, Oct 2, 2013 at 5:05 PM, Curt Lundgren <[email protected]> wrote: > I regenerated the server SSH keys, which are separate from the root user SSH > keys: > > ssh_host_dsa_key > ssh_host_key > ssh_host_rsa_key > > > > On Wed, Oct 2, 2013 at 5:02 PM, Chris McQuistion <[email protected]> > wrote: >> >> Curt, did you run "ssh-keygen -t rsa" to generate the RSA key on this new >> server? Did you include a passphrase when it ran? >> >> >> On Wed, Oct 2, 2013 at 4:48 PM, Curt Lundgren <[email protected]> wrote: >>> >>> Thanks, Dave. I can reboot one of the clients in the morning, perhaps >>> that will clear up the issue. >>> >>> Curt >>> >>> >>> On Wed, Oct 2, 2013 at 4:45 PM, Dave Manginelli >>> <[email protected]> wrote: >>>> >>>> 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. >>> >>> >>> -- >>> -- >>> 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. > > > -- > -- > 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. 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