VNC Connection Not Working On SSH Tunnel - Error sshd[XX]: Refused Local Port Forward: Originator 0.0.0.0 port 0, Target localhost Port 5901 (Doc ID 2524646.1)

Last updated on DECEMBER 08, 2022

Applies to:

Symptoms

• VNC connection cant be established 
• SSH Port Forwarding is not working
• When the ssh tunnel is done and we attempt to open the VNC session the following error appears on the  ssh tunnel
• The /var/log/secure report the following error

ssh tunnel  :

[User@Desktop$ ssh -i <PRIVATE KEY > opc@<PUBLIC IP>  -L 1234:localhost:5901
Last login: Fri Mar 29 17:41:13 2019 from 209.17.40.41
[opc@ol7maupostfix ~]$ 
channel 3: open failed: administratively prohibited: open failed   <==

/var/log/secure :

Mar 29 17:41:40 localhost sshd[7529]: refused local port forward: originator ::1 port 33366, target localhost port 5901  <==
Mar 29 17:42:00 localhost sshd[7529]: refused local port forward: originator ::1 port 33372, target localhost port 5901
Mar 29 17:45:43 localhost sshd[7762]: refused local port forward: originator ::1 port 49366, target localhost port 5901
Mar 29 17:47:20 localhost sshd[8447]: refused local port forward: originator ::1 port 49386, target localhost port 5901

Changes

•  VNC was configured 
•  SSH service was customized 

Cause

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