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It has never been easier to solve SSH error no display environment variable specified.
SSH errors can be a hassle, causing frustration and wasted time. One such error is "SSH error no display environment variable specified", which can prevent you from using SSH. In this article, we will provide simple solutions for resolving SSH error no display environment variable specified and getting SSH working properly again.
Written by Richard on February 3, 2023
If you ever encounter the message “No Display Environment Variable Specified” while working with SSH, it’s time to take away your frustration and start troubleshooting!
This error normally occurs when SSH is attempting to connect to another system. The problem occurs as a result of differentiating between your local system session and the remote session. Whenever you try to connect to a remote system from your local computer, it requires you to set up a local environment where software such as a DISPLAY variable can be used in the remote machine. Usually, the SSH connection process will take care of the setting up of this environment and it will occur offline.
The error usually shows up if the SSH session was interrupted before the DISPLAY variable could be established. It could also be due to an incorrect value for the DISPLAY variable or it could be that you have disabled the local DISPLAY variable when setting up the new connection. In all cases, the issue lies within the environment.
Fortunately, the issue is easy to fix with a few simple steps. Firstly, you need to ensure that the DISPLAY variable is set correctly on the local system before attempting to connect with SSH. To do this, you will need to use the
export DISPLAY= command in the SSH connection session. The value should be the same as what it is on your local machine. This can be checked using either the
echo $DISPLAY command or by checking the value of the DISPLAY environment variable.
Once the value is established, SSH should be able to connect properly, and the error should be fixed. One other reason this error can occur is if you have disabled the local DISPLAY variable. If this is the case, then you will need to re-enable it by either running the
export DISPLAY=:0 command or by modifying the SSH configuration file.
If you find that the issue still persists, then don’t worry as we are here to help. Feel free to leave a comment below and we will do our best to get to the root of the problem and provide the necessary solution.
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