I have a new RHEL4 Linux box that I am using to copy data to old Solaris 2.6 and RHEL3 Linux boxes with scp. I have found that with the same setup, it works for some users but not for others. For user jane, this works fine:
jane@host1$ ssh -v remhost
debug1: Next authentication method: publickey
debug1: Trying private key: /mnt/home/osborjo/.ssh/identity
debug1: Offering public key: /mnt/home/osborjo/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
for user jack it does not:
jack@host1 ssh -v remhost
debug1: Next authentication method: publickey
debug1: Trying private key: /mnt/home/oper1/.ssh/identity
debug1: Offering public key: /mnt/home/oper1/.ssh/id_rsa
debug1: Authentications that can continue: publickey,password,keyboard-interactive
I have looked at the permissions for all the keys and files, they look the same. Since I am using home directories mounted by NFS, the keys for both the remote host and the local host are in the same directory. This is how things look for jane:
jane@host1$ ls -l $HOME/.ssh
-rw-rw-r-- 1 jane operator 394 Jan 27 16:28 authorized_keys
-rw------- 1 jane operator 1675 Jan 27 16:27 id_rsa
-rw-r--r-- 1 jane operator 394 Jan 27 16:27 id_rsa.pub
-rw-rw-r-- 1 jane operator 1205 Jan 27 16:46 known_hosts
For user jack:
jack@host1$ ls -l $HOME/.ssh
-rw-rw-r-- 1 jack engineer 394 Jan 27 16:28 authorized_keys
-rw------- 1 jack engineer 1675 Jan 27 16:27 id_rsa
-rw-r--r-- 1 jack engineer 394 Jan 27 16:27 id_rsa.pub
-rw-rw-r-- 1 jack engineer 1205 Jan 27 16:46 known_hosts
As a last ditch effort, I copied the authorized_keys, id_rsa, and id_rsa.pub from jill to jack, and changed the username in authorized_keys and id_rsa.pub with vi. It still did not work. It seems there is something different between the two users but I cannot figure out what it is.
