To test if your graphics card has OpenGL support or not, you can use the glxinfo utility. Here are the steps: Install the mesa-utils package by running the following command as the superuser: sudo apt-get install mesa-utils After the installation is complete, run the glxinfo command to display information about the OpenGL capabilities of your … Read more
To benchmark the disk seek and transfer performance on FreeBSD, you can use the dd and iozone utilities. To measure the disk seek performance, run the following command: dd if=/dev/ad0 of=/dev/null bs=1m count=10000 This command reads 10,000 1MB blocks from the disk and discards the output. It measures the disk seek performance by measuring the … Read more
To install Doom 3 on Ubuntu Linux, follow these steps: Install the libsdl1.2debian package, which provides compatibility libraries for older games like Doom 3: sudo apt-get install libsdl1.2debian Download the Doom 3 installer from the official website or insert the Doom 3 game disc into your computer’s DVD drive. Open a terminal and navigate to … Read more
To update all installed ports/applications on FreeBSD, you can use the portsnap and portmaster utilities. Follow these steps: Update your ports tree by running the following command as the superuser: # portsnap fetch update This command downloads the latest version of the ports tree to your system. Install portmaster if it is not already installed: … Read more
User dot-files are hidden files in a user’s home directory that start with a dot (e.g. .bashrc, .profile). To list these files for a particular user in Linux/Unix, you can use the following command: ls -a /home/username/.* Replace username with the actual username for the user whose dot-files you want to list. Alternatively, you can … Read more
To configure Apache to serve dual stacked IPv4 and IPv6 virtual hosts, you need to follow these steps: Make sure that your Apache installation supports IPv6. You can check this by running the following command: httpd -V | grep -i ipv6 If IPv6 support is enabled, you will see a line containing –enable-ipv6. Edit the … Read more
To configure disk quotas for a UFS file system in Solaris UNIX, you need to follow these steps: Enable quotas on the file system. Run the following command to enable quotas: sudo quotacheck -vum /path/to/filesystem This command will create quota files on the file system, which are used to track usage and limits for individual … Read more
To disable IPv6 networking on RedHat/CentOS, you need to modify the network configuration file. Here are the steps: Open the /etc/sysctl.conf file with a text editor: sudo vi /etc/sysctl.conf Add the following lines at the end of the file: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 Save and close the file. To apply the changes, run … Read more
To test the graphical performance and 3D acceleration of your Linux/UNIX system, you can use the glxgears and glxinfo tools. These tools are typically installed as part of the graphics drivers package on your system. Here are the steps to test the graphical performance: Open a terminal window and run the following command to check … Read more
To configure the ip6tables firewall in CentOS/RHEL to allow IPv6 traffic, you can follow these steps: Check the current ip6tables rules by running the following command: sudo ip6tables -L -n This will display the current rules in the ip6tables firewall. Allow inbound and outbound traffic on the loopback interface by running the following commands: sudo … Read more