Tecmint

Cloud computing is a popular buzzword that refers to an on-demand technology that has taken over the technology world by storm and simplifies the way we provision IT resources and access data. To better

One of the most reliable ways to protect your documents and their content from any alterations is using a digital signature. It is a mathematical technique used to validate the authenticity and integrity of

When systems encounter issues, as they sometimes will, you need to know your way around the problem and restore them back to a normal and functioning state. In this section, we focus on fundamental

In Part 10 of the LFCA series, we brushed over the classes of IP addresses and gave examples of the commonly used IP classes. However, that was just an overview and in this part,

Jenkins is a leading self-contained open-source automation server that is used to automate repetitive technical assignments involved in building, testing, and delivering or deploying software. Jenkins is Java-based and can be installed through Ubuntu

Java is one of the most popular programming languages and the JVM (Java’s virtual machine) is the run-time environment to run Java applications. These two platforms are required for much popular software that includes

In Part 9 of the LFCA series, we covered the basics of IP addressing. To better understand IP addressing, we need to pay more attention to these two types of IP address representation –

In our previous chapter of the LFCA series, we defined a computer network and briefly brushed over some of the general Linux networking commands that you can use to retrieve useful network information such

Teamviewer is a cross-platform, powerful, and secure remote access and control software that can connect to multiple devices simultaneously. It is an all-in-one solution for remote support which can be used for desktop sharing,

If you are a system administrator, a developer, or a DevOps engineer, chances are that at some point you’ve had to set up (or work with) a LAMP (Linux / Apache / MySQL or

This article is Part 8 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to monitor basic system metricks and schedule administrative tasks in the

Net-filter as we all know it’s a firewall in Linux. Firewalld is a dynamic daemon to manage firewalls with support for network zones. In the earlier version, RHEL & CentOS 6 we have been

Mosh, which stands for Mobile Shell is a command-line application which is used for connecting to the server from a client computer, over the Internet. It can be used as SSH and contains more

This article is Part 7 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to manage software packages in the Linux system. As a systems

In this article, we will take a look at gdu an open-source disk usage analyzer written in go. Gdu is inspired by godu, dua, ncdu, and df. The gdu tool is created for SSD

SQLite is a lightweight, small and self-contained RDBMS in a C library. Popular databases like MySql, PostgreSQL, etc. works in the client-server model and they have a dedicated process running and controlling all the

This article is Part 6 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to manage time and date settings in the Linux system. Time

As a Linux system administrator, you will be tasked with ensuring the smooth flow of all IT operations in your organization. Given that some IT operations are intertwined, a systems administrator usually wears many

Google Cloud Platform is a suite of cloud computing services that share its running environment with the same infrastructure that Google uses internally for its end-user products e.g YouTube, Gmail, and Google Search. It

In this article, we will take a look at how to use a break and continue in bash scripts. In bash, we have three main loop constructs (for, while, until). Break and continue statements