Category: Techno Babble

Babbling ’bout tech

PyCharm: Python IDE for Professional Developers

Today, Python has become a popular high-level programming language for general-purpose programming. It is easy to learn and it has clean syntax and indentation structure essentially making it easier for programmers with backgrounds in...

How to Get Domain and IP Address Information Using WHOIS Command

WHOIS is a TCP-based query and response protocol that is commonly used to provide information services to Internet users. It returns information about the registered Domain Names, an IP address block, Name Servers and...

How to View Configuration Files Without Comments in Linux

Are you looking through an extremely lengthy configuration file, one with hundreds of lines of comments, but only want to filter the important settings from it. In this article, we will show you different...

How to Send a Message to Logged Users in Linux Terminal

How can I send a messages to logged on users in a Linux server? If you are asking this question, then this guide will help you learn how to do that. We will demonstrate...

How to Find All Failed SSH login Attempts in Linux

Each attempt to login to SSH server is tracked and recorded into a log file by the rsyslog daemon in Linux. The most basic mechanism to list all failed SSH logins attempts in Linux...

How to Clear BASH Command Line History in Linux

The bash history keeps a record of all commands executed by a user on the Linux command line. This allows you to easily run previously executed commands by using the “up arrow” or “down arrow”...

How to Disable SSH Root Login in Linux

The root account is often the most targeted account by crackers via SSH under Linux. An enabled SSH root account on a Linux server exposed to a network or, worse, exposed in Internet can...

How to Create a Password Protected ZIP File in Linux

ZIP is a very popular compression and file packaging utility for Unix-like operating systems as well as Windows. While perusing through the zip man page, I discovered some useful options for protecting zip archives....

How to Change Default MySQL/MariaDB Port in Linux

In this guide we’ll learn how to change the default port that MySQL/MariaDB database binds in CentOS 7 and Debian-based Linux distributions. The default port that MySQL database server is running under Linux and...

How to Permanently Disable Swap in Linux

Swapping or swap space represents a physical memory page that lives on top of disk partition or a special disk file used for extending the RAM memory of a system when the physical memory...

How to Search DuckDuckGo from the Linux Terminal

Like Googler (Google Site Search from the command-line), ddgr is a command line utility that can be used to search for key terms words via DuckDuckGo search engine and a command line browser on...

How to Explain Bitcoin to an Asshole

2 Simple Ways to Explain Where Bitcoins Value Comes From I get a lot of questions about where the value of Bitcoin is derived. I love this question. Mostly because people tend to ask this question

How to Set or Change Hostname in CentOS 7

A computer hostname represents a unique name that gets assigned to a computer in a network in order to uniquely identify that computer in that specific network. A computer hostname can be set to...

How to Check MySQL Database Size in Linux

In this article, I will show you how to check the size of MySQL/MariaDB databases and tables via the MySQL shell. You will learn how to determine the real size of a database file...

CrossOver 17 – Run Windows Software and Games on Linux

Do you want to run some of your top and productive Windows software such as Microsoft Office 2016, Enterprise Architect, including games such as League of Legends, Everquest, WebSite-Watcher Battle on Linux or Mac,...

How to Test Local Websites or Apps on Internet Using Ngrok

Are you a website or mobile application developer, and want to expose your localhost server behind a NAT or firewall to the public Internet for testing purposes? In this tutorial, we will reveal how...

How to Reset WordPress Admin Password via MySQL Command Prompt

Sometimes, a WordPress user, with one of the following capabilities, such as administrator, editor, author, contributor or subscriber, forgets its login credentials, especially the password. WordPress password can be easily changed via “Lost password”...

How to View Colored Man Pages in Linux

In Unix-like operating systems, a man page (in full manual page) is a documentation for a terminal-based program/too/utility (commonly known as a command). It contains the name of the command, syntax for using it,...

ccat – Show ‘cat Command’ Output with Syntax Highlighting or Colorizing

ccat is command line similar to cat command in Linux that displays the content of a file with syntax highlighting for the following programming languages: Javascript, Java, Go, Ruby, C, Python and Json. To...

Performance Monitoring for the Frontend — An introduction

Over the course of this year, I have seen a lot of talks given at different conferences around the globe. Quite a few of them had the focus on performance, touching various topics: Remove jank