Chapter 13. Remotely accessing an X11-based application

Procedure

1. Install basic X11 packages:

   # dnf install xorg-x11-xauth xorg-x11-fonts-\* xorg-x11-utils dbus-x11

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   Note

   Your applications might rely on additional graphical libraries.

2. Enable the X11Forwarding option in the /etc/ssh/sshd_config configuration file:

   X11Forwarding yes

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   The option is disabled by default in RHEL.

1. Restart the sshd service:

   # systemctl restart sshd.service

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Procedure

1. Log in to the server using SSH:

   [local-user]$ ssh -X -Y remote-server
   The authenticity of host 'remote-server (192.168.122.120)' can't be established.
   ECDSA key fingerprint is SHA256:uYwFlgtP/2YABMHKv5BtN7nHK9SHRL4hdYxAPJVK/kY.
   Are you sure you want to continue connecting (yes/no/[fingerprint])?

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2. Confirm that a server key is valid by checking its fingerprint.

   Note

   If you plan to log in to the server on a regular basis, add the user’s public key to the server using the ssh-copy-id command.

3. Continue connecting by typing yes.

   Warning: Permanently added 'remote-server' (ECDSA) to the list of known hosts.

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4. When prompted, type the server password.

   local-user's password:
   [local-user ~]$

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5. Launch the application from the command line:

   [remote-user]$ application-binary

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