networkmanager –version and nmcli -v are command line instructions that can be entered into the terminal on a Linux system. They are used to display the version number of NetworkManager that is currently installed on the system. NetworkManager is a service that manages network connections on Linux and Unix-like systems. When you enter the command … Read more
This error message typically indicates that there was an issue with a filesystem operation performed by the Linux container manager LXD. The specific cause of the error can vary, but some common reasons include: Insufficient storage space on the host machine Permission issues with the container’s filesystem File system corruption Network connectivity issues To troubleshoot … Read more
There are several ways to check memory utilization and usage in Linux: free command: The free command is used to check the total amount of free and used physical and swap memory in the system, as well as the shared memory and buffers used by the kernel. $ free -m top command: The top command … Read more
You can check if a file does not exist in Bash by using the ! -f or ! -e operator. For example: if ! [ -f “/path/to/file” ]; then echo “File does not exist” fi Or if [ ! -e “/path/to/file” ]; then echo “File does not exist” fi Both of these commands will check … Read more
You can reset a WordPress password using the MySQL command-line interface (CLI) by following these steps: Log in to the MySQL CLI as the root user: mysql -u root -p You will be prompted to enter the root password. Select the WordPress database: use databasename; Replace “databasename” with the actual name of your WordPress database. … Read more
You can import a WireGuard profile using the nmcli command on Linux by following these steps: Create a new connection profile using the nmcli command: nmcli connection import type wireguard file /path/to/profile.conf This will import the WireGuard profile from the specified file and create a new connection profile with the same name as the file. … Read more
There are several ways to remove carriage returns (also known as “line endings” or “newline characters”) in Linux or Unix. Some common methods include: Using the “tr” command: tr -d ‘\r’ < input.txt > output.txt This command uses the “tr” (translate) command to delete all occurrences of the carriage return character (\r) from the input … Read more
To password protect a directory with Nginx using .htpasswd authentication, you can follow these steps: Create a .htpasswd file that contains a list of username and password pairs. You can create this file using the “htpasswd” command. For example: htpasswd -c /etc/nginx/.htpasswd user1 Add the following code to your Nginx server block configuration file: location … Read more
You can check if a variable is defined in a bash script by using the “if [ -z ${var} ]” or “if [ -v var ]” command. For example, if you want to check if a variable named “var” is defined, you can use: if [ -z “${var}” ]; then echo “var is not defined” … Read more
bhyve is a hypervisor for FreeBSD that allows you to run virtual machines (VMs) on top of a FreeBSD host. You can use bhyve and ZFS to install a Linux VM on a FreeBSD host. Here are the general steps to do this: Create a ZFS pool on the host system: zpool create -f mypool … Read more