SSH cheatsheet

ssh.md

Passwordless

1. Generate key (if necessary): ssh-keygen -o -a 100 -t ed25519
2. Add content of the PUBLIC key to ~/.ssh/authorized_keys file on the server
3. Check that ~/.ssh has 700 and ~/.ssh/authorized_keys has 600 perm (on server)

Config file

Create ~/.ssh/config file:

VisualHostKey=yes 

Host <name>
Hostname <hostname>
Port <port>
User <user>
IdentityFile /home/<user>/.ssh/<keyfile>

Then you can connect like that:
ssh <name>

sshuttle

'vpn' via ssh sshuttle -e 'ssh -i ~/.ssh/id_ed25519' -r user@10.20.30.140 10.10.100.0/24
-e - pass cmd to ssh, here use key
-r - remote host where we have ssh
10.10.100.0/24 - network to which we want to have access