Linux solution xhost:unable to open display ""

To set Xhost method steps under Linux

First step: Log in to Linux with Root and start the VNC service;

[Email protected]:~# vncserver
The ' vncserver ' command was not found, whether you want to enter:
Command ' Vnc4server ' from package ' vnc4server ' (universe)

After execution, re-execute the vnc4server command as prompted above

Tips:

The program "Vnc4server" has not been installed. You can use the following command to install:
Apt-get Install Vnc4server

Execute the Apt-get install Vnc4server command again, and after the installation is complete, re-execute the Vnc4server

Step two: According to the VNC port, set export Display=localhost:1 (1 for VNC to start on the first TTY), the startup information of VNC is shown in annex 1;

Step Three: Execute Xhost +, and tip "access control disabled, clients can connect from any host" is correct.

The operating log under Linux is as follows:

[Email protected]:~# vnc4server

[Email protected]:~# apt-get Install Vnc4server
The program "Vnc4server" has not been installed. You can use the following command to install:
Apt-get Install Vnc4server

[Email protected]:~# vnc4server

New ' gao-virtual-machine:2 (root) ' Desktop is Gao-virtual-machine:2

Starting applications specified In/root/.vnc/xstartup
Log file Is/root/.vnc/gao-virtual-machine:2.log

[Email protected] ~]# export Display=localhost:2

[Email protected] ~]# Xhost +

Access control disabled, clients can connect from any host

There was a problem with unable when setting up Xhost. Using the appeal method can be done.

Linux Solution xhost:unable to open display ""