SSH tunnel Usage123456789# connect port 999 to target.server.tld:3306ssh target.server.tld -L 999:localhost:3306sudo ssh -N -f -l user target.server.tld -L 999:localhost:3306ssh -N Do not execute a remote command -f run as background process -L SSH Tunnel Newer Ubunt startup service Older Convert jks to key file for web server