How to implement multi-user login on Debian

This article introduces how to configure TigerVNC on the Debian system to achieve simultaneous access by multiple users.

1. Install TigerVNC server

First, install the TigerVNC server and related components using the following command:

sudo apt update
sudo apt install tigervnc-standalone-server tigervnc-common

2. Configure the TigerVNC server

Edit the TigerVNC server configuration file /etc/systemd/system/tigervncserver@.service :

sudo nano /etc/systemd/system/tigervncserver@.service

Add or modify the following configuration in the file,<username></username> Replace with the target username,<group></group> Replace with user groups (usually users ):

<code>[Unit] Description=Start TigerVNC server at startup After=syslog.target network.target [Service] Type=forking User=<username> Group=<group> WorkingDirectory=/home/<username> PIDFile=/home/<username> /.vnc/%H:%i.pid ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1 ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i ExecStop=/usr/bin/vncserver -kill :%i [Install] WantedBy=multi-user.target</username></username></group></username></code>

3. Enable and start the TigerVNC service

Enable and start the first VNC session (port 5901):

sudo systemctl daemon-reload
sudo systemctl enable tigervncserver@1.service
sudo systemctl start tigervncserver@1.service

Subsequent sessions use numbers that are incremented in sequence such as @2 , @3 , etc.

4. Configure a firewall

Allow VNC connections, such as using ufw firewall:

sudo ufw allows 5901/tcp # Allow the first VNC session sudo ufw allows 5902/tcp # Allow the second VNC session# ...and so on

5. Connect to VNC server

Use a VNC client to connect to the server, for example:

vncviewer<server_ip> :1</server_ip>

<server_ip></server_ip> Replace with the server IP address, 1 represents the first VNC session (port 5901).

6. Set VNC password

Each user needs to set their own VNC password:

vncpasswd

Follow the prompts.

7. Multi-user login implementation

Each user starts his or her own VNC session and logs in with a different port number (5901, 5902, 5903...) and password.

Summary: Through the above steps, you can successfully configure TigerVNC on the Debian system to achieve multi-user login. Please make sure that each user has set the VNC password correctly and adjust the port number and firewall rules according to the actual situation.

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