Ssh schnelleinstieg

Server

Installation

• apt-get install ssh

Config directory

/etc/ssh

Main Config File

Example

• cat /etc/ssh/sshd

Port 22
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
PermitRootLogin prohibit-password
ChallengeResponseAuthentication no
UsePAM yes
X11Forwarding yes
PrintMotd no
AcceptEnv LANG LC_*
Subsystem sftp  /usr/lib/openssh/sftp-server
PasswordAuthentication yes

start,stop,restart,status

• systemctl start ssh
• systemctl stop ssh
• systemctl status ssh
• systemctl restart ssh

Client

Config directory

/etc/ssh

Personal directory

~/.ssh

remote login

• ssh harald@rechner
• ssh -l harald rechner
• ssh -p 22 -l harald rechner

execute remote program

• ssh harald@rechner date
• ssh harald@rechner pwd
• ssh harald@rechner ls -l

local to remote

file

• scp /etc/hosts harald@rechner:/tmp

directory

• scp -r /bin harald@rechner:/tmp