The ip route add command in Linux is used to add a new route to the IP routing table. The syntax for the ip route add command is as follows: ip route add network/mask dev interface where: network/mask: This is the IP address and netmask for the network you want to route. dev: This is … Read more

To summarize the detailed system resource usage for a given command on Linux or Unix, you can use the time command. The time command provides information about the resources used by a command, including the real time elapsed, user time, and system time. Here’s how: Open a terminal window. Type the following command, replacing command … Read more

You can find the version of macOS installed on your Mac from the Terminal command prompt by using the sw_vers command. Here’s how: Open Terminal. Type the following command and press Enter: sw_vers This will display the version of macOS installed on your Mac, including the ProductName, ProductVersion, and BuildVersion. For example: ProductName: Mac OS … Read more

To find out if AES-NI (Advanced Encryption Standard New Instructions) is enabled on a Linux system, you can use the following methods: Check the output of the lscpu command: lscpu | grep “AES” If AES-NI is enabled, the output should include the following lines: AES-NI: Yes Check the contents of the /proc/cpuinfo file: grep “aes” … Read more

The “dnf” command is the package manager for Fedora Linux. If you are behind a proxy server, you can configure dnf to use the proxy by setting the http_proxy and https_proxy environment variables. Here’s how: Open a terminal window. Set the http_proxy and https_proxy environment variables to the URL of your proxy server, including the … Read more

Composer is a dependency manager for PHP, which helps you manage the packages and libraries required for your PHP projects. Here’s how to install Composer on Debian or Ubuntu Linux: Open a terminal window. Download the Composer installer script by running the following command: curl -sS https://getcomposer.org/installer | php Move the composer.phar file to a … Read more

To force Apache to show a HTTP-410 Gone status code, you need to add a custom error response in your Apache configuration file. Here’s how to do it: Open the Apache configuration file, usually located at “/etc/httpd/conf/httpd.conf” or “/etc/apache2/httpd.conf”, using a text editor as root or using sudo. Add the following line inside the VirtualHost … Read more

The “x86info” and “cpuid” commands are tools in Linux that allow you to read the CPUID information for each CPU in your system. Here’s how to use them: Using “x86info”: Open a terminal window. Run the following command to display information about your CPU using “x86info”: x86info -a This will show you a list of … Read more

The root password on an Alpine Linux system can be changed using the “passwd” command. Here’s how to do it: Open a terminal window. Log in as root or switch to the root user using the “su” command: su Run the following command to change the root password: passwd Follow the prompts to set the … Read more

The zone information for a given country in a Linux or Unix system can be found using the “tzselect” command. Here’s how to use it: Open a terminal window. Run the following command: tzselect Follow the prompts to select the country, and then select the appropriate city or time zone for that country. After making … Read more