Using Xmanager to connect to remote CentOS 7 via XDMCP

素颜马尾好姑娘i 2023-06-01 05:37 14阅读 0赞

Gnome in CentOS 7 tries to use local hardware acceleration and this becomes a problem when trying to connect remotely using XDMCP. To avoid this problem, you have to use an alternative display manager (other than ‘gdm’) and desktop environment.

![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzE1LnBuZw_.jpg][]

This guide explains how you can change the display manager to lightdm from gdm and desktop environment from Gnome to Xfce.

## Switching display manager from gdm to lightdm ##

1.  Add a new source repository:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzI0LnBuZw_.jpg][]
2.  Switch to root account:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzE2LnBuZw_.jpg][]
3.  Install lightdm:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzE3LnBuZw_.jpg][]
4.  Configure lightdm:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzE4LnBuZw_.jpg][]  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzE5LnBuZw_.jpg][]  
    If the lightdm.conf does not exist, create one.
5.  Change the default display manager to lightdm:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzIwLnBuZw_.jpg][]
6.  Stop gdm and start lightdm:  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzIxLTEucG5n.jpg][]
7.  Disable firewall to test connection. It is recommended that you only allow incoming UDP port 177.  
    ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzIyLnBuZw_.jpg][]

## Add Xfce and configure as the default desktop environment. ##

1.  1.  Add a new source repository:  
        (If you already installed EPEL repository, this is not required.)  
        ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzI0LnBuZw_.jpg][]
    2.  Install an alternative desktop environment:  
        ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzI1LnBuZw_.jpg][]
    3.  Restart lightdm:  
        ![L3Byb3h5L2h0dHAvYmxvZy5uZXRzYXJhbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzA1LzI2LnBuZw_.jpg][]
    4.  Connect with Xmanager and select Xfce.

转载于:https://www.cnblogs.com/Jeely/p/11353171.html

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