Secures Shell

Cheat-sheet and config examples.

# Map remote port 10060 of foo.site to local 10050 port, can be abbreviated
ssh -L 127.0.0.1:10060:localhost:10050 foo.site
ssh -L 10060:localhost:10050 foo.site
 
# Map local port 22 to 2200 port of foo.site, can be abbreviated
ssh -R localhost:2200:localhost:22 foo.site
ssh -R 2200:localhost:22 foo.site
 
# Forward 2200 port of bar.site to 22 port of foo.side
ssh -R localhost:2200:foo.site:22 bar.site

# Use several identites for foo.site
Host foo-hancock
    User hancock
    Port 22
    Hostname foo.site
    IdentityFile ~/.ssh/id_rsa_hancock
    TCPKeepAlive yes
    IdentitiesOnly yes
 
# Some directives can be ommited if default
Host foo-anotheruser
    User anotheruser
    HostName foo.site
    IdentityFile ~/.ssh/id_rsa_anotheruser

# Generate new keys, save as id_rsa_hancock and id_rsa_anotheruser
ssh-keygen -c mymail@site
 
# Enjoy
ssh foo-hancock
ssh foo-anotheruser