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Ubuntu

  • Installing and Using dig in Ubuntu

    Installing and Using dig in Ubuntu

    dig is an awesome utility for querying DNS name servers. It performs DNS lookups and displays the answers that are returned from the name server(s) that were queried. In this guide, you'll learn how

  • Securing Apache Server Using a (Self Signed Certificate) [Ubuntu]

    Securing Apache Server Using a (Self Signed Certificate) [Ubuntu]

    In this guide, you'll learn how to use SSL to secure Apache, this way, you can ensure your websites are encrypted and available over HTTPS. By default, Apache configuration listens for traffic on por

  • Installing Security Updates in Ubuntu

    Installing Security Updates in Ubuntu

    To begin installing security updates, the first thing is to update your repository index, which would instruct the server to check all lists of packages that are new or out-dated. Update your repo wi

  • Securing Apache Server Using (Let's Encrypt) [Ubuntu]

    Securing Apache Server Using (Let's Encrypt) [Ubuntu]

    In this guide, you'll learn how to use secure your Apache server for free with Let's Encrypt, this way, you can ensure your websites are encrypted and available over HTTPS. Let's Encrypt provide free

  • Simple Way to Fix SSH Permission Denied (Public key) error

    Simple Way to Fix SSH Permission Denied (Public key) error

    Most of the time when you encounter permission denied (public key) error, it is not because the public key doesn't exist but because the private key can't find the public key. If you are connecting f

  • Securing Nginx Server Using (Let's Encrypt) [Ubuntu]

    Securing Nginx Server Using (Let's Encrypt) [Ubuntu]

    In this guide, you'll learn how to use secure your Nginx server for free with Let's Encrypt, this way, you can ensure your websites are encrypted and available over HTTPS. Let's Encrypt provide free

  • Installing and Configuring Nginx

    Installing and Configuring Nginx

    Nginx or engine X is a free and open-source web server, reverse proxying, load balancer, caching, and more. Apache isn't the only web server for hosting web content (although, it is the most used), N

  • Securing Nginx Server Using a (Self Signed Certificate) [Ubuntu]

    Securing Nginx Server Using a (Self Signed Certificate) [Ubuntu]

    In this guide, you'll learn how to use SSL to secure your Nginx, this way, you can ensure your websites are encrypted and available over HTTPS. By default, Nginx configuration listens for traffic on

  • Installing, Understanding and Configuring Apache (Ubuntu)

    Installing, Understanding and Configuring Apache (Ubuntu)

    Apache is an open-source cross-platform web server software by Apache Software Foundation. To install apache, simply install the apache2 package as follows: sudo apt install apache2 Confirm apache2

  • Installing Additional Apache Modules

    Installing Additional Apache Modules

    If you want to add additional modules for Apache extension. You can install additional modules, for example, you can install module to add support for PHP, and the likes. Run the following command to

  • How to Rename Files and Directories in GNU/Linux

    How to Rename Files and Directories in GNU/Linux

    Renaming file and directory is quite straight forward in GNU/Linux, in this guide I'll show you how to do just that... The mv command is among the useful utility for renaming, and moving files from o

  • Installing MariaDB (Ubuntu)

    Installing MariaDB (Ubuntu)

    MariaDB is an open-source relational database, and a fork of MySQL by the original developers of MySQL. The database structure and indexes of MariaDB are the same as MySQL. So, you can easily switch

  • Changing the MariaDb Configuration Files

    Changing the MariaDb Configuration Files

    You can tune MariaDB to your liken using the MariaDB’s option files. The default MariaDB option file is called my.cnf on Unix-like operating systems (i.e Ubuntu, Debian, and the likes), if you are

  • Transferring files with scp In [Ubuntu]

    Transferring files with scp In [Ubuntu]

    I recently wrote a basic guide on transferring files with rsync, and I outlined some examples, while rsync is really powerful, the major problem I have with it is that it doesn't support the transfer

  • Transferring files with rsync In [Ubuntu]

    Transferring files with rsync In [Ubuntu]

    If you are coming from a GUI world, then you know transferring files from one location or folder to another is as easy as doing a few mouse clicks, the way it works in GNU/Linux is a bit different, a

  • Beginners Guide To Using (htop) In Ubuntu

    Beginners Guide To Using (htop) In Ubuntu

    In your server, there are lots of ways you could view a system resource usage, as well as the ability to kill a misbehaving or resource hog processes, for example, you can use the kill command to gra

  • Understanding Load Average In GNU/Linux

    Understanding Load Average In GNU/Linux

    Load average is the average number of processes that is calculated over a period of time, they can either be in a runnable or uninterrupted‐able state. When a process is in a runnable state, it is

  • Understanding & Displaying Running Processes In Ubuntu

    Understanding & Displaying Running Processes In Ubuntu

    Processes are tasks or program that is running, these processes might as well be a daemon (background task). In this guide, you will learn how to determine the process running on your system, as wel

  • Managing Jobs In Ubuntu (Minimize Processes)

    Managing Jobs In Ubuntu (Minimize Processes)

    In this guide, you will learn how to minimize processes, and work on other stuff while the process is still going on, this is similar to the way you would...

  • Dealing With Misbehaving Processes in Ubuntu

    Dealing With Misbehaving Processes in Ubuntu

    If you are used to the Windows system, you would have likely come across a misbehaving application, which can most likely be killed using the Task Manager. This is similar in GNU/Linux, the only diff