VNC over SSH

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Revision as of 18:17, 17 August 2022 by Digimer (talk | contribs) (Created page with "{{howto_header}} This tutorial covers setting up VNC over SSH on EL8.3+ (RHEL 8, CentOS Stream 8, etc). and EL9. {{note|1=Make sure all <span class="code">admin</span> users are logged out (Gnome and terminal). There is a bug we don't know the source of yet that can break the ability to log into gnome.}} SSH into the Striker dashboard as the root user. <syntaxhighlight lang="bash"> dnf install tigervnc-server </syntaxhighlight> <syntaxhighlight lang="text">...")
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 Alteeve Wiki :: How To :: VNC over SSH

This tutorial covers setting up VNC over SSH on EL8.3+ (RHEL 8, CentOS Stream 8, etc). and EL9.

Template note icon.svg
Note: Make sure all admin users are logged out (Gnome and terminal). There is a bug we don't know the source of yet that can break the ability to log into gnome.

SSH into the Striker dashboard as the root user.

dnf install tigervnc-server
Last metadata expiration check: 0:19:19 ago on Wed 17 Aug 2022 12:06:35 PM EDT.
Dependencies resolved.
==============================================================================================================
 Package                             Architecture       Version                   Repository             Size
==============================================================================================================
Installing:
 tigervnc-server                     x86_64             1.12.0-5.el8              appstream             285 k
Installing dependencies:
 tigervnc-license                    noarch             1.12.0-5.el8              appstream              40 k
 tigervnc-selinux                    noarch             1.12.0-5.el8              appstream              48 k
 tigervnc-server-minimal             x86_64             1.12.0-5.el8              appstream             1.1 M

Transaction Summary
==============================================================================================================
Install  4 Packages

Total download size: 1.5 M
Installed size: 3.4 M
Is this ok [y/N]: y
Downloading Packages:
(1/4): tigervnc-license-1.12.0-5.el8.noarch.rpm                               223 kB/s |  40 kB     00:00    
(2/4): tigervnc-selinux-1.12.0-5.el8.noarch.rpm                               216 kB/s |  48 kB     00:00    
(3/4): tigervnc-server-1.12.0-5.el8.x86_64.rpm                                982 kB/s | 285 kB     00:00    
(4/4): tigervnc-server-minimal-1.12.0-5.el8.x86_64.rpm                        4.9 MB/s | 1.1 MB     00:00    
--------------------------------------------------------------------------------------------------------------
Total                                                                         2.7 MB/s | 1.5 MB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                      1/1 
  Running scriptlet: tigervnc-selinux-1.12.0-5.el8.noarch                                                 1/4 
  Installing       : tigervnc-selinux-1.12.0-5.el8.noarch                                                 1/4 
  Running scriptlet: tigervnc-selinux-1.12.0-5.el8.noarch                                                 1/4 
  Installing       : tigervnc-license-1.12.0-5.el8.noarch                                                 2/4 
  Installing       : tigervnc-server-minimal-1.12.0-5.el8.x86_64                                          3/4 
  Installing       : tigervnc-server-1.12.0-5.el8.x86_64                                                  4/4 
  Running scriptlet: tigervnc-server-1.12.0-5.el8.x86_64                                                  4/4 
  Verifying        : tigervnc-license-1.12.0-5.el8.noarch                                                 1/4 
  Verifying        : tigervnc-selinux-1.12.0-5.el8.noarch                                                 2/4 
  Verifying        : tigervnc-server-1.12.0-5.el8.x86_64                                                  3/4 
  Verifying        : tigervnc-server-minimal-1.12.0-5.el8.x86_64                                          4/4 

Installed:
  tigervnc-license-1.12.0-5.el8.noarch               tigervnc-selinux-1.12.0-5.el8.noarch                     
  tigervnc-server-1.12.0-5.el8.x86_64                tigervnc-server-minimal-1.12.0-5.el8.x86_64              

Complete!

Edit /etc/tigervnc/vncserver.users to enable the admin access via VNC.

diff -u /root/vncserver.users /etc/tigervnc/vncserver.users
--- /root/vncserver.users	2022-08-17 13:59:09.924844674 -0400
+++ /etc/tigervnc/vncserver.users	2022-08-17 14:02:37.893980059 -0400
@@ -5,4 +5,4 @@
 #
 # :2=andrew
 # :3=lisa
-
+:2=admin

Now edit to enable defaults.

diff -u /root/vncserver-config-mandatory /etc/tigervnc/vncserver-config-mandatory
--- /root/vncserver-config-mandatory	2022-08-17 13:53:31.861747957 -0400
+++ /etc/tigervnc/vncserver-config-mandatory	2022-08-17 13:58:45.678479131 -0400
@@ -9,8 +9,8 @@
 # Several common settings are shown below. Uncomment and modify to your
 # liking.
 
-# session=gnome
-# securitytypes=vncauth,tlsvnc
-# geometry=2000x1200
-# localhost
-# alwaysshared
+session=gnome
+securitytypes=vncauth,tlsvnc
+geometry=1920x1080
+localhost
+alwaysshared
Variables Description
session Is set to a valid Xsession name as per configuration files in /usr/share/xsessions/
securitytypes Denotes the authentication options presented to clients
desktop Sets the name of the desktop session displayed by various components, including the vnc client
geometry Denotes the aspect ratio and native resolution of the session
localhost Denotes the host to which the server will bind
alwaysshared Sets all incoming connections as shared, regardless of client settings

 

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