Add this to
~/.bashrc and be happy =):
# By saying PROXY I mean it is a host located in internal network. # You can access any other internal hosts from it via SSH. # Export some variables export PROXY_KEY_PATH="~/.ssh/proxy/id_rsa" # path to locally stored private key from PROXY-server export PROXY_USER="user" # user name to get access to PROXY via SSH export PROXY_HOST="internal.host.foobar.com" # FQDN or IP of a proxy export PROXY_AUTH="$PROXY_USER@$PROXY_HOST" # literally it is a string "firstname.lastname@example.org" # Connect to PROXY via SSH alias proxy="ssh $PROXY_AUTH" # Connect to PROXY via SSH and attach to screen (P.S. don't do it inside a locally launched screen :)) alias proxy_screen="ssh -t $PROXY_AUTH screen -x" # Forward some service's port which you can access only from PROXY to localhost:1234 # 1234 - local port with service # ServiceHost - IP-address of a host with service # ServicePort - Port of a service at ServiceHost alias tunnel_service='ssh -L 1234:ServiceHost:ServicePort $PROXY_AUTH' # Forward MySQL-connection which you can access only from some host inside enterprise network (no a PROXY-host) to localhost # MySQLHost - IP-address of MySQL-server # WebHost - IP-address of a host that can connect to MySQLHost # WebUser - User name to access from PROXY to WebHost via SSH alias tunnel_mysql='ssh -A -i $PROXY_KEY_PATH -L 3306:MySQLHost:3306 -o ProxyCommand="ssh $PROXY_AUTH nc WebHost 22" WebUser@WebHost' # Run some command at remote server and disconnect # TargetHost -IP-address of a host where you wanna execute your command # TargetUser - User name to access from PROXY to TargetHost via SSH # 'cd /srv/some/directory/; ls -al | wc -l)' - the command you are willing to run alias remote_directory_count="ssh -i $PROXY_KEY_PATH -t -o ProxyCommand='ssh $PROXY_AUTH nc TargetHost 22' TargetUser@TargetHost 'cd /srv/some/directory/; ls -al | wc -l)'"