Rahul Sahu

To delete files on SUSE Enterprise Linux, you can use the “rm” command in the terminal. Here’s the basic syntax: rm <file_name> To remove a directory and its contents, you can use the “-r” or “–recursive” option: rm -r <directory_name> Keep in mind that the “rm” command is permanent and the deleted files cannot be … Read more

The sed -i command on Linux and Unix systems can overwrite symbolic links (symlinks) if not used with caution. To prevent sed -i from overwriting symlinks, you can use the following methods: Use a temporary file: sed ‘s/old-text/new-text/g’ inputfile > tempfile && mv tempfile inputfile This method creates a temporary file, modifies its content, and … Read more

Here are the steps to install the LAMP stack on Debian 9 Stretch: Install Apache Web Server: sudo apt-get update sudo apt-get install apache2 Install MySQL Server: sudo apt-get install mysql-server During the installation, you’ll be prompted to set a root password for MySQL. Install PHP: sudo apt-get install php libapache2-mod-php php-mysql Configure Apache to … Read more

To upgrade from Debian Linux 8 Jessie to Debian 9 Stretch using command line over an SSH-based session, follow these steps: Log in to your Jessie system using SSH: ssh user@hostname Update the package index: sudo apt-get update Upgrade the system to the latest version of Jessie: sudo apt-get upgrade Make a backup of important … Read more

To check for errors on /dev/xvda2 in Ubuntu, you can use the fsck (file system check) command. First, you need to unmount the file system: sudo umount /dev/xvda2 Then, run the fsck command: sudo fsck -f /dev/xvda2 The -f option forces a check even if the file system is marked as clean. If any errors … Read more

Here is a simple Nginx configuration to redirect non-www traffic to www with HTTPS: server { listen 80; server_name example.com; return 301 https://www.example.com$request_uri; } server { listen 443 ssl; server_name example.com; ssl_certificate /path/to/cert.pem; ssl_certificate_key /path/to/cert.key; return 301 https://www.example.com$request_uri; } server { listen 443 ssl; server_name www.example.com; ssl_certificate /path/to/cert.pem; ssl_certificate_key /path/to/cert.key; # Add your website configuration … Read more

To run a cron job every minute on a Linux/Unix system, you need to create a cron job that runs a shell script or command at the desired interval. Here’s how you can do this: Open the crontab file for editing: crontab -e Add the following line to the end of the file: * * … Read more

To find out if your Ubuntu/Debian Linux server needs a reboot, you can use several methods. Here are some common methods: Check the system logs: You can check the system logs to see if there are any messages indicating that a reboot is required. You can use the following command to view the system logs: … Read more

The Linux Kernel Stack Clash vulnerability (CVE-2017-1000364) is a security issue that affects the Linux kernel. To protect against this vulnerability, you will need to patch your Linux system by installing the appropriate security updates. The exact steps to patch and protect against this vulnerability will depend on the specific distribution of Linux you are … Read more

Tinc VPN is a virtual private network (VPN) software that allows you to create a secure network between multiple computers. To run two or more network instances of Tinc VPN on the same machine, you will need to perform the following steps for each network: Create separate directories for each network: mkdir /etc/tinc/network1 mkdir /etc/tinc/network2 … Read more