Cloud Computing
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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
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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
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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
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Installing Nginx Server as Reverse-Proxy for Apache [Multiple Websites]
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),
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Finding Out File Using Up Disk Space With [du] in GNU/Linux
It is a bit annoying when your disk space gets full, and you have no idea what is eating up the disk space, well, let me introduce you to ducommand, with this command you can get the disk usage of t
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Installing and Using NCDU (NCurses Disk Usage)
ncdu is a curses-based version of the well-known 'du' command and provides a fast way to see what directories are using your disk space. What I love about this utility is that it can traverse the re
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Understanding & Using Symbolic & Hard Links (Ubuntu)
Have you ever wondered how you can create shortcuts that link to other files in Linux? Well, let me introduce you to symbolic and hard links. The two types of links in Linux are symbolic links and ha
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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
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Understanding the Linux Filesystem
Understanding the filesystem is important if you want to know how data is stored and retrieved, but really, the term might be somewhat confusing in Linux, as it means two different things. A filesys
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Viewing Disk Usage in Ubuntu
There are several ways to view disk usage in your Linux system, and that is what we would be going over in this guide... Out of the box, Linux provides us the df command, which is the standard Unix c
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How To Find Files Using Locate in Ubuntu
It's kind of frustrating when you are searching for a particular file, and you have no idea of how to find it, In this guide, I'll walk you through on two different ways you can find a file in your G
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Monitoring Multiple Log Files In RealTime With MultiTail (Ubuntu)
Oh my... I really find scanning through the logs file time consuming, and painful. Luckily for me, I founded Multitail, which is an awesome, and powerful tool for not only browsing through several f
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Creating Command Aliases in GNU/Linux (Command Shortcuts)
As time goes on, you'll need to be super productive with the way you use commands in GNU/Linux, and one example is utilizing alias. Using alias allows you to create an additional equivalent name for
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Managing MariaDB Databases (Ubuntu Server)
In this guide, you'll learn how to manage MariaDB databases in your terminal, from connecting to the database server using the mariadb command, creating a database, removing (drop) database, and mana
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Synchronize File With Cloud Storage Using [Rclone] In (GNU/Linux)
Rclone is an open-source command-line program to sync files and directories to and from different cloud storage providers. It preserves timestamps, and if you are transferring from local to cloud, it
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Access A Web Page In GNU/Linux Using (Links) [Web Browser in Text Mode]
Links is a text-mode World Wide Web (WWW) browses that can be used to view a web page either via a local (file://) or remote ((http:// or ftp://) URLs. To get started with Links, install it using the
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Test Your Internet Download Speed from Terminal Using (Fast)
Fast is a tiny utility program for testing your internet download speed from the terminal, to get started, you simply install via the snap store (Ubuntu): sudo snap install fast If you don't have sna
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How To Send Mail To Multiple Addresses Using (mailx)
In this guide, you'll learn a couple of ways you can send mail to multiple addresses using mailx. mailx is a utility program for sending and receiving mail. I assume you already have mailx command, i
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How to Delete Mail Queue in Postfix
I had some issue with one of mailserver, where postfix keeps retrying to send mail to a mistyped email address, it was very frustrating considering this particular email was holding back thousands of
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How To Configure and Enable Syntax Highlighting in Nano Text Editor
nano is one of the most popular, and friendly editor in GNU/Linux, it has several features that can boost the usability and easiness of the program. In the guide, you'll learn how to configure and en
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