Category: Techno Babble

Babbling ’bout tech

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How to Delete Old Unused Kernels in Debian and Ubuntu

In our last article, we’ve explained how to delete old unused kernels in CentOS/RHEL/Fedora. In this article, we will explain how to delete old unused kernels in Debian and Ubuntu systems, but before moving...

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How to Delete Old Unused Kernels in CentOS, RHEL and Fedora

In this article, we will show how to remove old/unused kernel images on RHEL/CentOS/Fedora systems. However, before you remove an old kernel, it is important to keep your kernel up to date; install the...

3 Ways to Check Apache Server Status and Uptime in Linux

Apache is a world’s most popular, cross platform HTTP web server that is commonly used in Linux and Unix platforms to deploy and run web applications or websites. Importantly, it’s easy to install and...

Sysdig – A Powerful System Monitoring and Troubleshooting Tool for Linux

Sysdig is an open-source, cross-platform, powerful and flexible system monitoring and troubleshooting tool for Linux; it also works on Windows and Mac OSX but with limited functionality and can be used for system analysis,...

How to Create a Centralized Log Server with Rsyslog in CentOS/RHEL 7

In order for system administrator to identify or troubleshoot a problem on a CentOS 7 or RHEL 7 server system, it must know and view the events that happened on the system in a...

eBook – Install WordPress with Apache + Let’s Encrypt + W3 Total Cache + CloudFlare + Postfix on CentOS 7

Dear friends, The Tecmint.com team is pleased to announce that a long-awaited request from you has become a reality: Install WordPress with Apache + Postfix + Let’s Encrypt + W3 Total Cache Plugin + CloudFlare on...

How to Secure Apache with SSL and Let’s Encrypt in FreeBSD

In this tutorial we’ll learn how to secure Apache HTTP server with TLS/SSL certificates offered by Let’s Encrypt in FreeBSD 11.x. We will also cover how to automate the process of the certificate renewal...

How to Install Nginx, MariaDB and PHP (FEMP) Stack on FreeBSD

This tutorial will guide you on how to install and configure FBEMP in FreeBSD 11.x latest release. FBEMP is an acronym which describes the following collection of software: FreeBSD 11.1 Unix-like distribution, Nginx web...

How to Fix “E: unable to locate package” Error in Debian 9

If you install Debian 9 system using a netinstall CD image, your system probably will not have all the necessary repositories (from which you can install common packages), included in the apt sources list...

How to Install Apache, MariaDB and PHP (FAMP) Stack on FreeBSD

This guide will describe how to install and configure FBAMP in FreeBSD operating system, which is similar to a LAMP stack on Linux. FBAMP is an acronym which stands for a collection of software...

How to Install PostgreSQL 9.6 on Debian and Ubuntu

PostgreSQL is a powerful, highly scalable, open source and cross-platform object-relational database system that runs on Unix-like operating systems including Linux and Windows OS. It is an enterprise level database system which is highly...

How to Boost Linux Server Internet Speed with TCP BBR

BBR (Bottleneck Bandwidth and RTT) is a relatively new congestion control algorithm written by software engineers at Google. It is the latest solution out of Google’s persistent attempts to make the Internet faster via...

10 Things to Do After Fresh Installation of FreeBSD

This tutorial will cover some initial configurations you need to perform on a fresh installed FreeBSD operating system and some basics on how to manage FreeBSD from command line. Requirements FreeBSD 11.1 Installation Guide...

FreeBSD 11.1 Installation Guide

FreeBSD is a free, powerful, robust, flexible and stable Open Source operating system based on Unix which is designed with security and speed in mind. FreeBSD can operate on a large variety of modern...

How to Rename File While Downloading with Wget in Linux

Wget utility is a popular and feature-rich command-line based file downloader for Unix-like operating systems and Windows OS. It supports non-interactive downloading of files over protocols such as HTTP, HTTPS, and FTP. It’s designed...

How to Boot into Single User Mode in CentOS/RHEL 7

Single User Mode (sometimes known as Maintenance Mode) is a mode in Unix-like operating systems such as Linux operate, where a handful of services are started at system boot for basic functionality to enable...

How to Change Runlevels (targets) in SystemD

Systemd is a modern init system for Linux: a system and service manager which is compatible with the popular SysV init system and LSB init scripts. It was intended to overcome the shortcomings of...

How to Find Files With SUID and SGID Permissions in Linux

In this tutorial, we will explain auxiliary file permissions, commonly referred to as “special permissions” in Linux, and also we will show you how to find files which have SUID (Setuid) and SGID (Setgid)...

How To Install PIP to Manage Python Packages in Linux

Pip (recursive acronym for “Pip Installs Packages” or “Pip Installs Python“) is a cross-platform package manager for installing and managing Python packages (which can be found in the Python Package Index (PyPI)) that comes...

How to Connect to MySQL Without Root Password on Terminal

Normally while installing MySQL/MariaDB database server on Linux, it’s recommended to set a MySQL root user password to secure it, and this password is required to access the database server with root user privileges....