In this article, we will see how to install add-apt-repository on Ubuntu 22.04 system. If you are looking to add PPA repositories in your system then there is no better utility than add-apt-repository. It is very frequently used to add a new software repository to your system's software source list. Not only that it is ... Read more

In this article, we will see how to install whois command on Ubuntu/Debian based systems. whois is a free and open source tool to check the registry information, contact information and other related information of a domain depending on the domain's privacy settings in Linux based systems. It works by querying WHOIS servers to retrieve ... Read more

In this article, we will see how to install nmap on Ubuntu/Debian based systems. Nmap is a free and open source network scanner tool for network discovery and security auditing. It is often used by security testers, penetration testers and network testers to perform security analysis of an organization computer network. Nmap scans the network ... Read more

In this article, we will see how to update or upgrade packages on Ubuntu/Debian. In Linux based systems, it is always recommended to update or upgrade system packages to the latest available versions. This can be done differently in different linux systems using their default package manager. For example on Ubuntu/Debian based systems, you can ... Read more

In this article, we will see how to find files and directories in Linux. It always looks a daunting task to find a file or a directory from a list of probably hundreds and thousands of files and directories available in your Linux Server. But in reality this has been made so easy with a ... Read more

In this article, we will see how to permanently change hostname in Linux. Many times you might have noticed that setting hostname is absolutely critical for setting up of different server and services. If you try to set hostname using hostname command then it would temporarily show in current terminal session but as soon as ... Read more