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CentOS / Red Hat: Sudo Allows People In Group Admin To Run All Commands
By default, CentOS and Red Hat systems are configured to allow users who are members of the "wheel" or "sudo" group to run all commands using the "sudo" command. Here's how to add users to the "sudo" or "wheel" group:rn rn Log in as root or a user with sudo privileges. rn Open the sudoers file in a
Top 5 Linux Video Editor Software
Here are some of the best Linux video editor software available:rn rn Kdenlive: Kdenlive is a popular open-source video editor with a user-friendly interface that can handle multiple tracks and has a range of features such as audio and video effects, transitions, and keyframe animation. rn Blender:
hdparm: HDIO_DRIVE_CMD(identify) Failed: Inappropriate Ioctl For Device
The error message "HDIO_DRIVE_CMD(identify) Failed: Inappropriate Ioctl For Device" is an indication that the hdparm command was not able to send the "identify" command to the device. This error can occur for several reasons, including:rn rn The device is not recognized by the system: Make sure that
7 Best Free And Paid Medical Inventory Software
7 Best Free And Paid Medical Inventory Software rn https://youtu.be/0RaPJRmQTkM Software used to automate the procurement of supplies used in the treatment of medical conditions.rn- Track orders and delivery times of products such as machines and equipment, lab and surgical supplies, and
7 Best Free And Paid Calibration Management Software
7 Best Free And Paid Calibration Management Software rn https://youtu.be/QxO7CXB6EB0 Software used to calibrate tools and equipment with standard tests.rn- Schedule calibration tasks and track them via calendar.rn- Use labels or barcodes to quickly update equipment profiles and history.r
7 Best Free And Paid Aviation MRO Software
7 Best Free And Paid Aviation MRO Software rn https://youtu.be/V-RQGw-pSQc Software used to manage maintenance, repair, and operations for airlines and aviation-focused businesses.rn- Track expenses and repairs, maintenance schedules, and regulatory and safety checks.rn- Allocate resourc
7 Best Free And Paid Warranty Management Software
7 Best Free And Paid Warranty Management Software rn https://youtu.be/NhR-x4nWOtY Software used to provide and fulfill manufacturer guarantees on products.rn- Process warranty registrations, extensions, and sales.rn- Organize contracts, claims data, inspections, and returns.rn- Integrate
Linux: Test If My Graphics Card Has OpenGL Support Or Not
To test if your graphics card has OpenGL support or not, you can use the glxinfo utility. Here are the steps:rn rn Install the mesa-utils package by running the following command as the superuser:rn rn rn sudo apt- get install mesa-utilsrn rn rn After the installation is complete, run the glxinfo co
FreeBSD: Benchmark The Disks Seek And Transfer Performance
To benchmark the disk seek and transfer performance on FreeBSD, you can use the dd and iozone utilities.rn rn To measure the disk seek performance, run the following command:rn rn rn dd if = /dev/ ad0 of = /dev/ null bs=1m count= 10000 rn rn rnThis command reads 10,000 1MB blocks from the disk and d
Ubuntu Linux: Install Doom3 Game
To install Doom 3 on Ubuntu Linux, follow these steps:rn rn Install the libsdl1.2debian package, which provides compatibility libraries for older games like Doom 3:rn rn rn sudo apt- get install libsdl1 .2 debianrn rn rn Download the Doom 3 installer from the official website or insert the Doom 3 ga
FreeBSD Update All Installed Ports / Applications
To update all installed ports/applications on FreeBSD, you can use the portsnap and portmaster utilities. Follow these steps:rn rn Update your ports tree by running the following command as the superuser:rn rn rn # portsnap fetch update rn rn rnThis command downloads the latest version of the ports
Linux / UNIX List User Dot-Files
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:rn rn rn ls -a /home/username/.* rn rn rnReplace username with the actual username for the user whos
Apache IPv6 Configuration: Dual Stacked IPv4 & IPv6 Virtual Hosts
To configure Apache to serve dual stacked IPv4 and IPv6 virtual hosts, you need to follow these steps:rn rn Make sure that your Apache installation supports IPv6. You can check this by running the following command:rn rn rn httpd -V | grep - i ipv6rn rn rnIf IPv6 support is enabled, you will see a l
Solaris UNIX Configure Disk Quota For UFS File System
To configure disk quotas for a UFS file system in Solaris UNIX, you need to follow these steps:rn rn Enable quotas on the file system. Run the following command to enable quotas:rn rn rn sudo quotacheck -vum /path/to/filesystemrn rn rnThis command will create quota files on the file system, which ar
RedHat / Centos Disable IPv6 Networking
To disable IPv6 networking on RedHat/CentOS, you need to modify the network configuration file. Here are the steps:rn rn Open the /etc/sysctl.conf file with a text editor:rn rn rn sudo vi /etc/sysctl.confrn rn rn Add the following lines at the end of the file:rn rn rn net.ipv6.conf. all .disable_ipv
Linux / UNIX: Test Graphical Performance ( 3D Acceleration / FPS )
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:rn rn Open a terminal windo
CentOS / RHEL IPv6 ip6tables Firewall Configuration
To configure the ip6tables firewall in CentOS/RHEL to allow IPv6 traffic, you can follow these steps: n n Check the current ip6tables rules by running the following command:n n n sudo ip6tables -L -n n n n This will display the current rules in the ip6tables firewall. n Allow inbound and outbound tr
Firefox: Add a Trusted CA
To add a trusted Certificate Authority (CA) to Firefox, you can follow these steps:rn rn First, obtain the root CA certificate from the organization or website you want to trust. This may be provided in a variety of formats, such as a .crt file or a URL. rn In Firefox, click on the "Menu" button (th
gedit: Add Python / C++ Autocomplete Support
By default, the gedit text editor in Ubuntu or other Linux distributions may not have built-in support for Python or C++ code autocompletion. However, you can easily add this functionality by installing appropriate plugins. Here are the steps to add Python/C++ autocomplete support in gedit:rn rn Ope
FreeBSD Upgrade Perl 5.8.x to 5.10.x
Upgrading Perl on FreeBSD is a relatively straightforward process. Here are the steps to upgrade Perl 5.8.x to 5.10.x:rn rn Make sure your ports tree is up-to-date by running the following command:rn rn rn portsnap fetch update rn rn rn Remove the existing Perl installation:rn rn rn pkg_delete -f pe
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