How To Configure BIND as a DNS Server on RHEL7/CentOS7/Fedora26 The purpose of this guide is to explain how to Configure BIND as a DNS Server on RHEL7/CentOS7/Fedora26, in my previous guide I have explained different type of DNS Servers and role of the bind in Linux DNS. so if you are a beginner and…
semanage Command Not Found CentOS7/RHEL7 Lately, I was configuring Caching-Only DNS on CentOS7 / RHEL7, once i tried to configure SElinux context on /etc/named.conf using: semanage fcontext -a -t named_conf_t /etc/named.conf, it didn’t work.! and threw the following error: -bash: semanage: command not found. Let me show you how i fix this error “semanage Command…
Intro: Configure Reverse Proxy With Apache On (RHEL7/CentOS7) Recently on my job i was asked, to publish an Apache Web-Server for internet users. I was asked by the management to suggest a secure way to deploy web-servers publicly, obviously security is top concern if we talk about internet. After some research on google, I decide…
This Apache High Availability Cluster tutorial is divided into Four Parts series to get the proper and complete understanding about each topic. Before you start reading I would like to clarify that, this guide is addressing both beginners and advance level Linux Administrators. We will be covering the following topics in this series: Part 1:…
What is DNS ? In this Tutorial we are going to learn How to Configure BIND On Linux CentOS/RHEL7 so lets first start with DNS. DNS (Domain Name System) is a hierarchical structure that is responsible for resolving hostnames into their numerical IP addresses for computer systems and vice versa. Domain Name System has been…
Install xrdp on CentOS 7 / RHEL 7 After installing Linux in a production or testing environment many users struggle to find a way on How to Remote Desktop from windows to Linux machine.
What is su and sudo command in Linux & Why It’s Important to Use Linux Effectively? . Linux has lots of security features in place that are meant to safeguard your system from threats and sometimes from our own Mistakes or Stupidity. Two things are infinite: The Universe and Human Stupidity – Albert Einstein Click…
How to Install Gnome GUI Graphical User Interface on CentOS 7 After you have installed CentOS 7 minimal installation, If you are required to change the installation type into Graphical User Interface (GUI).
How to enable Iptables firewall in CentOS 7 / RHEL 7 After fresh Installation of CentOS 7, I was trying to open some ports using iptables as usual in CentOS 5 or CentOS 6. Something was wrong with iptables service. Ok.. Let’s see why its not available and how to enable iptables firewall in CentOS…
INTRODUCTION How to Setup Linux Crontab with Examples Every Linux administrators need to automate their important tasks using task scheduler which is something called crontab in Linux operating system. The word crontab has two parts Cron ( cron derives from chronos, Greek for time) and tab (stands for table).
INTRODUCTION DHCP on CentOS 7/RHEL 7 In this Tutorial we are going to install DHCP (Dynamic Host Configuration Protocol) on CentOS 7. What is DHCP? DHCP Stands for Dynamic Host Configurations Protocol that is used to dynamically assign IP Addresses to Clients, on every device attached on network requires an IP Address to communicate with…
In this tutorial we are going to see how to install webmin on CentOS 7 Webmin is a web-based management for Unix/Linux like systems its very useful for users who are not families with command based configurations.
