eval `ssh-agent -s`
ssh-keygen -t rsa -b 4096 -C "[email protected]"
ssh-add <ssh key path> # delete ssh key
ssh-add -D <ssh key path> # delete ssh key
ssh-add -l
https://ypereirareis.github.io/blog/2016/09/19/ssh-tunnel-local-remote-port-forwarding/
https://medium.com/maverislabs/proxyjump-the-ssh-option-you-probably-never-heard-of-2d7e41d43464