SSH Tricks
SSH is omnipresent, its the standard in connecting to a remote machine, even windows is shipping it default (so I am told).
— Dhananjay Balan (@notmycommit) February 14, 2019
These are some less known (IMHO), but cool SSH features. Best way to read more is to read relevant section in man ssh
If you have to ssh to machines only accessible from another control machine, checkout -J flag. "ssh -J control_machine actual_machine"
— Dhananjay Balan (@notmycommit) February 14, 2019
GnuPG keys can also be your ssh key: There is no reason to maintain two sets of keys, you can use your gpg keys are ssh keys. Arch wiki has a nice explanation: https://t.co/sk5tub39Ad
— Dhananjay Balan (@notmycommit) February 14, 2019
If you do use gpg keys, you can store them on a @Yubico "Yubikey" (https://t.co/at94SwI1E1) or any supported hardware key(like @nitrokey). This ensures your keys are accessible only when they are plugged in, quite useful if you move around computers a lot.
— Dhananjay Balan (@notmycommit) February 14, 2019
You can shorten your complicated ssh commands by adding an entry in ~/.ssh/config file. see man ssh_config
— Dhananjay Balan (@notmycommit) February 14, 2019
If you want to lend your SSH key to a host you ssh to (to ssh from the guest to somewhere else, git clone from github on guest etc) - checkout the -A flag.
— Dhananjay Balan (@notmycommit) February 14, 2019
SSH can act as a web proxy to fetch requests via your server. Quite handy as a quick and dirty vpn. Emphasis on quick n dirty - don't use this to replace a regular vpn.https://t.co/1VWG9rT70U
— Dhananjay Balan (@notmycommit) February 14, 2019
SSH can create a reverse shell](https://t.co/JQlxzi1ocJ), useful if you want to expose a machine behind NAT outside.
— Dhananjay Balan (@notmycommit) February 14, 2019
I am sure SSH can do much more! Whats your nifty less known SSH feature?
— Dhananjay Balan (@notmycommit) February 14, 2019