The product key for Windows 10/11 OEM (Original Equipment Manufacturer) is typically stored in the firmware of the device. You can use the following command on Linux to retrieve the product key: sudo cat /sys/firmware/acpi/tables/MSDM This command will print the product key in the output. You can also use the following command to extract the … Read more

To configure Nginx with Let’s Encrypt on CentOS 8 Install certbot: sudo yum install certbot-nginx Obtain a SSL certificate: sudo certbot –nginx Follow the prompts to enter your email address and agree to the terms of service Choose the domain name you want to generate the certificate for. The certbot will configure Nginx to use … Read more

There are several ways to count the number of processes running on a Linux system. Here are a few methods: Using the ps command: The ps command provides a snapshot of the current processes on the system. To count the number of running processes, you can use the following command: ps -e | wc -l … Read more

To update installed packages for security on CentOS 8/9, you can use the yum command as the root user or with sudo. Update the package index by running the command sudo yum update. This command will update all installed packages to the latest version. You can also update specific packages by providing the package name … Read more

The Santa hat feature in VLC Player is a holiday-themed overlay that can be enabled during the Christmas season. To remove the Santa hat permanently in VLC Player, you can follow these steps: Open VLC Player on your computer. Click on the “Tools” menu, then select “Preferences.” In the “Preferences” window, select “All” under “Show … Read more

To install the tar utility on a Red Hat Enterprise Linux (RHEL) or CentOS 6/7/8 system using the yum package manager, you can use the following command: sudo yum install tar This command will install the tar package, which includes the tar command-line utility for creating and extracting archive files. Alternatively, you can use the … Read more

Here are the steps to install PHP 7.x on CentOS 8 for Nginx: Add the remi repository to your system: sudo dnf -y install https://rpms.remirepo.net/enterprise/remi-release-8.rpm Enable the remi-php73 repository: sudo dnf module enable remi-php73 Use dnf to install PHP and the PHP-FPM package: sudo dnf install php php-fpm Start and enable the PHP-FPM service: sudo … Read more

There are a few ways to check the physical health of a USB stick (also known as a flash drive) on a Linux system. One way is to use the smartctl command, which is a command-line utility for monitoring the SMART attributes of a storage device. To use this command, you will need to first … Read more

To install htop on OpenSUSE Linux using zypper, you can use the following command: sudo zypper install htop This will install the htop package and its dependencies. Once the installation is complete, you can run htop by simply typing htop in the terminal. Alternatively, you can use the following command to search for the htop … Read more

To test and validate DNSSEC using the dig command line, you can use the +dnssec option to check the DNSSEC status of a domain. Here’s an example: dig +dnssec example.com This will return the DNS record for the domain example.com along with the DNSSEC-related information such as the RRSIG, DNSKEY, and DS records. To validate … Read more