If the VPN tab in Gnome Network Manager is greyed out or disabled, it could be due to a few different reasons: Gnome Network Manager VPN plugins are not installed: Gnome Network Manager requires specific VPN plugins to be installed in order to support different VPN protocols. If the VPN tab is greyed out, it’s … Read more

You can find out the CPU architecture information on a Linux system using several methods. Here are a few: lscpu command: The lscpu command provides detailed information about the system’s CPU architecture. You can use it as follows: lscpu This will display information such as the architecture (e.g. x86_64), the number of CPUs, the number … Read more

dash (short for Debian Almquist shell) is a Unix shell that is commonly used as the default /bin/sh interpreter on many Linux distributions, including Debian, Ubuntu, and some others. It is designed to be a lightweight, fast, and POSIX-compliant alternative to the traditional bash shell. dash is a POSIX-compliant shell, which means that it adheres … Read more

You can put a Linux laptop or netbook in hibernate or suspend mode by using the systemctl command. To put the system in hibernate mode, run the following command as root or with sudo: systemctl hibernate To put the system in suspend mode, run the following command as root or with sudo: systemctl suspend Note … Read more

The startx error message “Failed to load” in BackTrack 5 KDE is usually caused by a problem with the X Window System configuration. Here are a few solutions that you can try to resolve the issue: Check the X Window System configuration files: The X Window System configuration files are stored in the /etc/X11/ directory. … Read more

You can find the kernel version of a Red Hat Enterprise Linux 6 (RHEL 6) or CentOS 6 system by using the uname command with the -r option. The -r option displays the kernel release number. Here’s an example: uname -r This will output the kernel version number, for example: 2.6.32-754.18.2.el6.x86_64 In this example, 2.6.32-754.18.2.el6.x86_64 … Read more

In Bash, you can use the for loop to execute a set of commands a specified number of times. The “C-style” syntax of a for loop in Bash looks like this: for ((expression1; expression2; expression3)) do commands done Here’s what each expression does: expression1: initializes the loop counter. This is executed only once at the … Read more

If you’re encountering an “out of disk space” error while installing the package kernel-2.6.32-131.2.1.el6.x86_64 in Linux, it means that the /boot partition does not have enough free space to accommodate the new kernel image. This can be resolved by removing some old, unused kernel images from the /boot partition. Here’s how you can do this: … Read more

In Linux or Unix, you can use the ls command with the -l option to see the file size of a file or directory. The file size is listed in the fifth column of the output. For example: ls -l <file_name> Replace <file_name> with the name of the file you want to check the size … Read more

To find out the version number of a kernel module or device driver in Linux, you can use the following command: modinfo <module_name> Replace <module_name> with the name of the module for which you want to see the version number. For example, to find the version number of the “vmxnet3” module, you would run: modinfo … Read more