There are several ways to add users to a group in Linux.
The following uses the sudo group as illustration.
gpasswd, usermod and adduser can all be used to add a user to a given group.
However, it is suggested that you use gpasswd as it is more portable and …
Full control of the power settings in Linux with Gnome Desktop can be done through dconf-editor at org->gnome->settings-daemon->plugins->power. The default way to determine low battery, critical low battery and to carray out critical low action is by counting left battery time. You can change the way …
xrandr or xrandr -q in terminal to dispaly information of all available output device.
Then you can use the following commands to set dual display.xrandr --output VGA1 --auto
xrandr --output VGA1 --same-as LVDS1 --auto
xrandr --output VGA1 --mode 1024x800
xrandr --output VGA1 --off
where VGA1 and LVDS1 should …
The kernel of Linux is usually very stable, but the existing free desktop environments are craps. Amongs these desktop environments I tried (Gnome, Xfce, LXDE and so on), none is even close to the desktop environments in Windows and Mac. I do not require desktop environments in Linux to be …
For many computers and laptops installed with Linux desktops, you can use shortcuts (usually Fn + Brightness_keys) to adjust screen brightness. This does not work for some laptops. Another way to adjust screen brightness is to use the following command.
sudo setpci -s 00:02.0 F4.B=brightness_value
The value …
VNC on Linux is not secure. Most implementations of VNC servers for Linux allows password only up to 8 characters. Such a VNC server is very vulnerable to brute-force attack. This article discuss a secure way to use VNC. The VNC (vino) server is started only when needed, thus reduce …