In my previous blog, I showed you how to install a KVM virtual machine on Fedora 41. That method works grea

Netcat (nc or ncat) is a powerful tool for network troubleshooting and testing. Today, I’ll show you how to

By default, UFW (Uncomplicated Firewall) is disabled on Ubuntu. While enabling it strengthens security, it

The echo command is commonly used to print user-specified strings to standard output. Sometimes, we may wan

Sometimes, we want to append text to a file which we don’t have permission to write to. Let’s s

In Bash scripting, a general rule is to wrap variables and command substitution with double quotes to preve

Sometimes when writing for my blog, I need to post some screenshots of my terminal. For the sake of securit

Sometimes we want to get version information about distro. The most handy way to achieve that is through ls

We use systemctl to manage systemd services and it’s tempted to think that it’s for systemd ser

In Ubuntu Linux distro, GRUB menu is not enabled by default, which is annoying when we need to boot into a