sshlisted

# SSH Skill Use SSH for secure remote access, file transfers, and tunneling. ## Basic Connection Connect to server: ```bash ssh user@hostname ``` Connect on specific port: ```bash ssh -p 2222 user@hostname ``` Connect with specific identity: ```bash ssh -i ~/.ssh/my_key user@hostname ``` ## SSH Config Config file location: ``` ~/.ssh/config ``` Example config entry: ``` Host myserver HostName 192.168.1.100 User deploy Port 22 IdentityFile ~/.ssh/myserver_key ForwardAgent yes ``` Then connect with just: ```bash ssh myserver ``` ## Running Remote Commands Execute single command: ```bash ssh user@host "ls -la /var/log" ``` Execute multiple commands: ```bash ssh user@host "cd /app && git pull && pm2 restart all" ``` Run with pseudo-terminal (for interactive): ```bash ssh -t user@host "htop" ``` ## File Transfer with SCP Copy file to remote: ```bash scp local.txt user@host:/remote/path/ ``` Copy file from remote: ```bash scp user@host:/remote/file.txt ./local/ ``` Copy directory recursively: ```bash scp -r ./local_dir user@host:/remote/path/ ``` ## File Transfer with rsync (preferred) Sync directory to remote: ```bash rsync -avz ./local/ user@host:/remote/path/ ``` Sync from remote: ```bash rsync -avz user@host:/remote/path/ ./local/ ``` With progress and compression: ```bash rsync -avzP ./local/ user@host:/remote/path/ ``` Dry run first: ```bash rsync -avzn ./local/ user@host:/remote/path/ ``` ## Port Forwarding (Tunnels) Local forward