Category: Techno Babble

Babbling ’bout tech

How to Exit a File in Vi / Vim Editor in Linux

In this article, we will learn how to exit Vi/Vim (after referred to as Vim) text editor using simple commands. In a previous article, we explained a simple tip on how to save a...

How to Configure Thunderbird with iRedMail for Samba4 AD – Part 13

This tutorial will guide you on how to configure Mozilla Thunderbird client with an iRedMail server in order to send and receive mail via IMAPS and SMTP submission protocols, how to setup contacts database...

lnav – Watch and Analyze Apache Logs from a Linux Terminal

Less than two weeks ago, the Wannacry ransomware attack compromised thousands of computers, causing considerable losses to big companies and individuals alike. That, along with other widespread vulnerabilities found in recent years (such as...

How to Save a File in Vi / Vim Editor in Linux

It is true that learning Vi/Vim – a well-known text editor in the Linux ecosystem, is not as easy as learning Nano or Emacs, as it requires a little effort which is worthwhile. Many...

Deal: Browse Faster & Safer with This All-In-One Tracker Blocker & VPN

Tracking on the Internet has immensely increased. It’s likely that you are being tracked online for various reasons including gathering and analyzing your personal information or online sessions to understand what ads to display...

10 Useful Tips for Writing Effective Bash Scripts in Linux

Shell scripting is the easiest form of programming you can learn/do in Linux. More so, it is a required skill for system administration for automating tasks, developing new simple utilities/tools just to mention but...

Linfo – Shows Linux Server Health Status in Real-Time

Linfo is a free and open source, cross-platform server statistics UI/library which displays a great deal of system information. It is extensible, easy-to-use (via composer) PHP5 library to get extensive system statistics programmatically from...

Trash-cli – A Trashcan Tool to Manage ‘Trash’ from Linux Command Line

Trash-cli is a command line interface that trashes files and records the original absolute path, deletion date, and associated permissions. It uses the same trashcan used by popular Linux desktop environments such as KDE,...

Deal: Learn Linux, Docker, Git & More With This 8-Course Bundle [90% OFF]

An IT infrastructure refers to an enterprise’s combined assortment of hardware, software, networks, data centers, facilities and related equipment used for setting up, operating, controlling and/or supporting IT services. If you looking to master...

Useful ‘host’ Command Examples for Querying DNS Lookups

Host command is a minimal and easy-to-use CLI utility for performing DNS lookups which translate domain names to IP addresses and vice versa. It can also be used to list and verify various types...

Show a Custom Message to Users Before Linux Server Shutdown

In a previous article, we explained the difference between shutdown, poweroff, halt and reboot Linux commands, where we uncovered what these mentioned commands actually do when you execute them with various options. This article...

How to Integrate iRedMail Roundcube with Samba4 AD DC – Part 12

Roundcube, one of the most used webmail user agent in Linux, offers a modern web interface for end users to interact with all mail services in order to read, compose and send e-mails. Roundcube...

Understanding Shutdown, Poweroff, Halt and Reboot Commands in Linux

In this article, we will explain to you the difference between shutdown, poweroff, halt and reboot Linux commands. We will make clear what they actually do when you execute them with available options. If...

How to Delete HUGE (100-200GB) Files in Linux

Usually, to delete/remove a file from Linux terminal, we use the rm command (delete files), shred command (securely delete a file), wipe command (securely erase a file) or secure-deletion toolkit (a collection of secure...

How to Configure and Integrate iRedMail Services to Samba4 AD DC – Part 11

In this tutorial will learn how to modify iRedMail main daemons which provide mail services, respectively, Postfix used for mail transfer and Dovecot which delivers mail to accounts mailboxes, in order to integrate them...

How to Password Protect a Vim File in Linux

Vim is a popular, feature-rich and highly-extensible text editor for Linux, and one of its special features is support for encrypting text files using various crypto methods with a password. In this article, we...

ssh_scan – Verifies Your SSH Server Configuration and Policy in Linux

ssh_scan is an easy-to-use prototype SSH configuration and policy scanner for Linux and UNIX servers, inspired by Mozilla OpenSSH Security Guide, which provides a reasonable baseline policy recommendation for SSH configuration parameters such as...

Ebook: Introducing Learn Linux In One Week and Go from Zero to Hero

After the success of our RHCSA / RHCE and LFCS / LFCE certification books, we are now happy to present “Learn Linux In One Week”. This ebook will walk you through the beginnings of...

ttyload – Shows a Color-coded Graph of Linux Load Average in Terminal

ttyload is a lightweight utility which is intended to offer a color-coded graph of load averages over time on Linux and other Unix-like systems. It enables a graphical tracking of system load average in...

T-UI Launcher – Turns Android Device into Linux Command Line Interface

Are you a command line guru, or do you simply want to make your Android device unusable for friends and family, then check out T-UI Launcher app. Unix/Linux users will definitely love this. T-UI...