ssh

Links

• http://wiki.ubuntuusers.de/SSH
• SSH Tips and Tricks

Usefull Stuff

• ssh-add ./ssh/id_rsa Passwort cache fuer keyfile
• Public key generieren: ssh-keygen -t rsa -b 4096
• ECDSA Key generieren: ssh-keygen -t ecdsa -b 521
• Public key auf neuen Host kopieren: ssh-copy-id -i ~/.ssh/id_rsa.pub user@server

Port Forwarding:

• https://iximiuz.com/en/posts/ssh-tunnels/

ssh -L [local_addr:]local_port:remote_addr:remote_port [user@]sshd_addr
ssh -R [remote_addr:]remote_port:local_addr:local_port [user@]gateway_addr
ssh -L 8000:localhost:8000 user@ip

Authorized Keys

• Datei in ~/.ssh/authorized_keys

Root Login nur mit Keyfile

• PermitRootLogin without-password

Config File

# ~/.ssh/config
IdentityFile ~/.ssh/id_rsa

Host remote
    HostName ip/hostname
    Port 22
    User your-username

• https://therootcompany.com/blog/ssh-defaults-config-and-priorities/

ssh-agent

• Cybterciti
• keychain

Putty

• Putty benutzt pkk Dateien anstatt dem normalen Keyformat. So kann man es umwandeln:

• puttygen my-ssh.com-key -o mykey.ppk