Shortest passwordless ssh tutorial, ever
by ac3bf1 on Aug.05, 2008, under Tutorials
I am readapting this tutorial from here for reference purposes only :-)
Update: Thanks Mike G for typo/fix/correction
local$ ssh-keygen -t dsa local$ scp ~/.ssh/id_dsa.pub remote:~/ local$ ssh username@remote remote$ cat ~/id_dsa.pub >> ~/.ssh/authorized_keys remote$ chmod 644 ~/.ssh/authorized_keys remote$ exit local$ ssh username@remote
Now instead of the normal password you should be asked for the password you entered for your dsa key. This isn’t passwordless yet but shows that ssh is using the key
Note: Leave Key password blank to have passwordless authentication
Fixes for possible problems:
chmod 0600 authorized_keys ln -s authorized_keys2 authorized_keys (or viceversa)
2 Comments for this entry
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June 25th, 2010 on 5:58 pm
Good thing you posted this as a reference — the original at http://blogs.translucentcode.org/mick/archives/000230.html seems to be down as of 25-Jun-2010…?
Thanks!
September 9th, 2010 on 7:03 pm
In most cases, there needs to be a colon after “remote” at the end of line 2 or else id_dsa.pub is just copied to a local file named “remote”. The following works for me:
local$ ssh-keygen -t dsa
local$ scp ~/.ssh/id_dsa.pub username@remote:
local$ ssh username@remote
remote$ cat ~/id_dsa.pub >> ~/.ssh/authorized_keys
remote$ chmod 644 ~/.ssh/authorized_keys
remote$ exit
local$ ssh username@remote