i have a linux (ubuntu 12) server, and a windows desktop.
i am trying to connect via ssh and private key
the server has these files
rw------- root.root /root/.ssh rw------- root.root /root/.ssh/authorized_keys rw------- user2.user2 /home/user2/.ssh rw------- user2.user2 /home/user2/.ssh/authorized_keys
(i.e. chmod 600 for both .ssh directory AND the auth-key file)
The contents of "authorized_keys" is a copy for both root and user2. Only ownership is different.
When trying to connect from the desktop:
ssh -i mykey email@example.com -- works, meaning the key is OK. ssh -i mykey firstname.lastname@example.org -- doesn't work, for the same "mykey" file!
(Priv key fail, but password login works anyway, so it's not about server not accepting this user at all)
What could possibly be different between the root and user2?
(I tried also plink, putty's version for "ssh'ing", with PPK file - same results, so it's not a bug in ssh :) i think. )
The specific error with ssh:
The authenticity of host '[myhost.org]:22 ([18.104.22.168]:22)' can't be established
Plink: "Server refused our key"
(ip/port/host in this msg are fake)