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--- services:remote-access:linuxssh [2020/04/15 07:03] – created ziehm
+++ services:remote-access:linuxssh [2023/06/22 09:10] (current) – arvidkrein
@@ Line 25: / Line 25: @@
   * -C - enable compression; use this when enabling X forwarding
+=====Key authentication (required from outside the FU network)=====
+Remote access using ssh from outside the FU network now requires **ssh-key** authentication.
+Key authentication works by having files on each machine that act as sort "password" instead.
+To create a key file, on the **local** computer use the command ''ssh-keygen'' and follow it's instructions.
+{{:services:remote-access:ssh-keygen.png}}
+By default this command produces two files in the ''.ssh'' subdirectory of your home folder.
+The file ''id_rsa'' is your **key** file, also called **private key**.
+The file ''id_rsa.pub'' is the corresponding **lock**, also called **public key**.
+To complete the setup you have to append the contents of ''id_rsa.pub'' to the ''.ssh/authorized_keys'' file on the **remote** computer.
+One way to do this is to move ''id_rsa.pub'' from your **local** to the remote computer and then, on the **remote computer** run
+<xterm>
+cat id_rsa.pub >> .ssh/authorized_keys
+</xterm>
+Now you should be able to log in using key authentication.