On Fri, May 8, 2015 8:58 am, James B. Byrne wrote:
While attempting to debug something else I ran across this:
ssh -vvv somehost . . . debug1: Connection established. debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/identity type -1 debug1: identity file /root/.ssh/identity-cert type -1 debug3: Not a RSA1 key file /root/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace . . .
However if I verify the key I see this:
ssh-keygen -l -f ~/.ssh/id_rsa.pub 4096 08:70:3b:92:4c:96:1c:6a:03:a4:ae:66:8d:9e:6c:93 /root/.ssh/id_rsa.pub (RSA)
Which seems ok to me. The permissions also seem ok:
.ssh]# ll total 40 -rw-------. 1 root root 3863 Oct 11 2012 authorized_keys -rw-------. 1 root root 3243 Aug 9 2012 id_rsa -rw-r--r--. 1 root root 757 Aug 9 2012 id_rsa.pub -rw-r--r--. 1 root root 11071 May 8 09:42 known_hosts
When checking permissions don't forget to check permissions on parent directories (all levels up to the /). E.g., if your home directory is world writable, ssh will ignore authorized_keys as well, as the above permissions _can_ be changed by everybody. The same is true if / is ridiculously world writable (I've never seen that myself, but I do mean: check all levels of what the path ~/.ssh is).
It's not clear from your description, but I'm sure you have the following right: id_rsa and id_rsa.pub is a pair you have on local machine (the one you ssh from). autorized_keys is on the remote machine (the one you connect to), and it contains the contents of id_rsa.pub that you have on local machine (i.e. you copied id_rsa.pub from local machine to remote and dumped it into ~/.ssh/autorized_keys on it).
I would also check that in sshd config file (usually: /etc/ssh/sshd_config) on remote machine you do have line
PubkeyAuthentication yes
Good luck!
Valeri
The password-less connections complete in any case but I am perplexed as to what is the problem with the root identity key that ssh is reporting.
Can anyone explain to me what this means?
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++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++