1.4 KiB
1.4 KiB
+++ date="2022-12-25" author="spanskiduh" title="SSH" description="click to read about SSH" +++
SSH
basic
/etc/ssh/ssh_config
- config location (client)/etc/ssh/sshd_config
- config location (server)
Enable encryption
ssh-keygen -t rsa
- generate private and public keyssh-copy-id <server-ip>
- copy ssh identity to server
--> uncomment PasswordAuthentication no
(on server)
Warning store private key on a secure location, if you lose it, you will lose connection to a server!
SSH ECDSA (smaller keys)
Generate keypair
ssh-keygen -t ed25519 -f ~/.ssh/keys/id_ed2552_devel_server
Copy to remote
ssh-copy-id devel@devel.hsrv -i ~/.ssh/keys/id_ed25519_devel_server
FAIL2BAN
- use it to secure ssh
SCP
scp <filename> <user@server_ip:/destination_folder>
- copy file to server, same goes for rsync
SSH CONFIG FILE
example for github:
Host github.com
User git
Hostname github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/id_ed25519
exmaple for any server:
Host vpn.de
HostName vpn.de
IdentityFile ~/.ssh/keys/vpn_de
Port 22
User root
note: You should put your server's ip in /etc/hosts/
for easier migrations.
How to joke around with medic
oli@bert:~$ ssh tim
oli@tim:~$ export DISPLAY=:0
oli@tim:~$ firefox