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Apr 15 2021
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    • Java
    • Ubuntu
How To Install Java with Apt on Ubuntu 20.04

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 Tomcat, Jetty, Cassandra, Glassfish, and Jenkins. In this article, you will learn how to install Java Runtime Environment (JRE) and the

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Apr 14 2021
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    • LFCA
    • Linux Certifications
LFCA: Learn Binary and Decimal Numbers in Network – Part 10

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 – binary and decimal-dotted quad notation. As mentioned earlier, an IP address is a 32-bit binary number that is usually represented in

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    • LFCA
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LFCA: Learn Basics of Network IP Addressing – Part 9

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 as your IP address, subnet mask, open ports and so much more. In an interconnected world, networks play a huge role

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Apr 08 2021
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    • CentOS
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How to Install TeamViewer 15 on RHEL/CentOS/Fedora and Debian/Ubuntu

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, online meetings, and file transfer between devices connected over the Internet. It works on notable operating systems such as Linux, Windows,

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Apr 07 2021
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    • CentOS
    • Fedora
    • RedHat
How to Enable Remi Repository to Install Latest LAMP Stack

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 MariaDB / PHP) stack. The web and database servers, along with the well-known server-side language, are not available in their latest

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Apr 06 2021
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    • MySQL
    • RedHat
How to Setup MySQL Master-Slave Replication on RHEL 8

MySQL Replication is a process where data from one server is automatically copied or replicated onto another backup server in real-time. Replication provides redundancy and fault tolerance and gives the user peace of mind that even after a failure in the master server, data can still be recovered. In this tutorial, you are going to

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Apr 02 2021
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    • LFCA
    • Linux Certifications
LFCA: How to Monitor Basic System Metrics in Linux – Part 8

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 Linux system. Keeping tabs on the performance of your system is one of the crucial roles that you will have to

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Apr 01 2021
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    • LFCA
    • Linux Certifications
LFCA: How to Manage Software Packages in Linux – Part 7

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 administrator, you will be tasked with the responsibility of managing software packages. This includes installing, upgrading, and removing or uninstalling packages

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Apr 01 2021
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    • CentOS
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    • SSH
    • Ubuntu
How to Install Mosh Shell as SSH Alternative on Linux

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 feature than Secure Shell. It is an application similar to SSH, but with additional features. The application is written originally by

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Apr 01 2021
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    • CentOS
    • Fedora
    • Firewalls
    • RedHat
    • Security
How to Configure FirewallD in RHEL, CentOS and Fedora

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 using iptables as a daemon for packet filtering framework. In RHEL/CentOS 7/8 and Fedora iptables interface is being replaced by firewalld.

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Recent Posts
  • How To Install Java with Apt on Ubuntu 20.04
  • LFCA: Learn Binary and Decimal Numbers in Network – Part 10
  • LFCA: Learn Basics of Network IP Addressing – Part 9
  • How to Install TeamViewer 15 on RHEL/CentOS/Fedora and Debian/Ubuntu
  • How to Enable Remi Repository to Install Latest LAMP Stack
  • How to Setup MySQL Master-Slave Replication on RHEL 8
  • LFCA: How to Monitor Basic System Metrics in Linux – Part 8
  • LFCA: How to Manage Software Packages in Linux – Part 7
  • How to Install Mosh Shell as SSH Alternative on Linux
  • How to Configure FirewallD in RHEL, CentOS and Fedora
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