Add a guide to configure SSH server

Guides/ssh.md

@@ -0,0 +1,27 @@
+# SSH
+
+## Install server
+
+```sh
+sudo apt install openssh-server
+```
+
+## Config server
+
+```sh
+sudoedit /etc/ssh/sshd_config
+```
+
+## Auto start ssh
+
+```sh
+sudo systemctl enable ssh
+sudo systemctl start ssh
+sudo service ssh restart
+```
+
+## Add key
+
+```sh
+ssh-copy-id -i ~/.ssh/id_rsa.pub 192.168.0.10
+```