Generate edsa key to connect servers

Guides/install-linux.md

@@ -33,7 +33,7 @@ sudoedit `/etc/hostname`
 
 ## Set up SSH
 
-### Add id key
+### Add client id key
 
 ```sh
 vim .ssh/authorizedkeys
@@ -46,6 +46,14 @@ Test if working.
 sudoedit /etc/ssh/sshd_config
 ```
 
+### Create id to connect to servers
+
+```sh
+ssh-keygen -f id_server_eddsa -t ed25519
+```
+
+Then add the generated public key to servers.
+
 ## Desktop installation
 
 ### Disable package update