To make a directory (i.e., create a new directory) on a Linux system, you can use the mkdir command. Here’s how to do it: Open a terminal window on your Linux system. Navigate to the location where you want to create the new directory using the cd command. For example: cd /home/yourusername This will navigate … Read more

The error message “LinuxACPI: I/O resource it87 [0x295-0x296] conflicts with ACPI region IP__ [0x295-0x296]” indicates that there is a resource conflict between two devices in your system. This can cause problems with system stability and performance. Here’s how to resolve this error: Open a terminal window on your Linux system. Use the lspci command to … Read more

To display a list of Ethernet adapters on an Ubuntu Linux system, you can use the ifconfig command. Here’s how to do it: Open a terminal window by pressing Ctrl + Alt + T or by searching for “Terminal” in the application launcher. Type the following command and press Enter: ifconfig -a This will display … Read more

To start, stop, or restart the Apache web server via SSH, you can use the systemctl command. Here’s how to do it: Connect to your server using SSH. To start Apache, enter the following command: sudo systemctl start httpd This will start the Apache web server. To stop Apache, enter the following command: sudo systemctl … Read more

You can turn on SELinux in Redhat or CentOS Linux over a remote SSH session by following these steps: Connect to your remote server using SSH. Open the /etc/selinux/config file using a text editor. You will need root privileges to edit this file. For example: sudo vi /etc/selinux/config Find the following line: SELINUX=enforcing This line … Read more

To transfer files from one UNIX server to another server using a Windows or Linux desktop, you can use several different methods. Here are a few common ways to do this: SCP (Secure Copy): SCP is a command-line tool that allows you to securely copy files between servers using the SSH protocol. To use SCP, … Read more

To configure OpenSSH to listen on an IPv6 address, you need to modify the sshd_config file. Here’s how to do it: Open the sshd_config file: sudo vi /etc/ssh/sshd_config Find the line that begins with ListenAddress: If the line exists, you can skip this step. If not, add the following line: ListenAddress :: This line tells … Read more

To rename files in Linux, you can use the mv command. Here are some examples of how to use mv to rename files: Rename a single file: To rename a single file, simply use the mv command followed by the current file name and the new file name. For example, to rename a file named … Read more

grep is a powerful command-line tool that allows you to search for text patterns in files using regular expressions (regex). Regular expressions are a powerful way to describe patterns of text, allowing you to search for much more than just literal strings. Here are some examples of how to use regular expressions with grep: Match … Read more

To extract files from a compressed tar archive on Linux, you can use the tar command with the xvf options. The x option specifies that you want to extract files, the v option stands for “verbose” and will show you the names of the files being extracted, and the f option is used to specify … Read more