Passwordless SSH works, scp does not


 
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# 1  
Old 12-18-2013
Passwordless SSH works, scp does not

I know the "how to setup passwordless SSH" question is asked probably 5 times a week.

I know how to setup passwordless SSH, it's not tough, however after reinstalling linux on my server, I found a problem. I could SSH into my server just fine, no password required, however SCP still required a password. I fixed it by simply regenerating the keys on the client and deleting the authorized_keys files on the server, essentially re-doing the passwordless ssh setup.

What would cause SCP to require a password but not SSH? If I remember correctly, it was asking me for a password for the public key file (which you can input during the key generation phase.) But, if I accidently put a password on the public key, ssh should have required it as well, correct?

After a quick google search I found that in the authorized_keys file can actually allow certain services but not others? Is that true?

Again, I've fixed the problem, this question is pure curiosity.
# 2  
Old 12-19-2013
Where the "authorized_keys"-file resides can be configured. This is just a guess, but might it be that "scp" just looked for it at a different location (because of, maybe, different environments)?

I hope this helps.

bakunin
# 3  
Old 12-19-2013
the permission of authorized keys should be 660
thanks
# 4  
Old 12-20-2013
Quote:
Originally Posted by kenshinhimura
the permission of authorized keys should be 660
actually: no. Although i have often seen that and it seems to work just well. The correct file permission, though, is 600.

I hope this helps.

bakunin
# 5  
Old 12-20-2013
Some OS are more strict and will only accept 600 permissions Smilie so when having issues its worth correcting if its not the case...
 
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