Update cheatsheets

ssh

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ssh
+
+> Secure Shell is a protocol used to securely log onto remote systems.
+> It can be used for logging or executing commands on a remote server.
+> More information: <https://man.openbsd.org/ssh>.
+
+- Connect to a remote server:
+
+`ssh {{username}}@{{remote_host}}`
+
+- Connect to a remote server with a specific identity (private key):
+
+`ssh -i {{path/to/key_file}} {{username}}@{{remote_host}}`
+
+- Connect to a remote server using a specific port:
+
+`ssh {{username}}@{{remote_host}} -p {{2222}}`
+
+- Run a command on a remote server with a [t]ty allocation allowing interaction with the remote command:
+
+`ssh {{username}}@{{remote_host}} -t {{command}} {{command_arguments}}`
+
+- SSH tunneling: Dynamic port forwarding (SOCKS proxy on `localhost:1080`):
+
+`ssh -D {{1080}} {{username}}@{{remote_host}}`
+
+- SSH tunneling: Forward a specific port (`localhost:9999` to `example.org:80`) along with disabling pseudo-[T]ty allocation and executio[N] of remote commands:
+
+`ssh -L {{9999}}:{{example.org}}:{{80}} -N -T {{username}}@{{remote_host}}`
+
+- SSH jumping: Connect through a jumphost to a remote server (Multiple jump hops may be specified separated by comma characters):
+
+`ssh -J {{username}}@{{jump_host}} {{username}}@{{remote_host}}`
+
+- Agent forwarding: Forward the authentication information to the remote machine (see `man ssh_config` for available options):
+
+`ssh -A {{username}}@{{remote_host}}`