set up ssh config

ssh config

[root][henry][~]
$ cd ~/.ssh
[root][henry][~/.ssh]
$ ll -tr config
-rw-r--r-- 1 root root 143 2012-10-04 13:06 config

# note the permissions -> user:group [644]

[root][henry][~/.ssh]
$ cat config
Host *
        PreferredAuthentications publickey,keyboard-interactive
        ServerAliveInterval 120
        ServerAliveCountMax 30
        IdentityFile /tmp/secretkeyinanunorthodoxlocation

Host stagingNickname
        User stagingUser
        Hostname staging.vindale.com
        IdentityFile /tmp/Staging_key

Host foosauce
        User barsauce
        Hostname some.different.server
        IdentityFile /tmp/foobarworld.rsa


# now you can just simply say

$ ssh foosauce
$ ssh stagingNickname

# you get scp for free as well!

$ scp foosauce:/opt/tomcat/webapps/app.war ./