Category Archive: CentOS

May 04 2016


Today we will walk through iptables and firewalld and we will learn about the history of these two along with installation & how we can configure these for our Linux distributions. Source: IPTABLES VS FIREWALLD | Unixmen

Jul 04 2015

Teemip – A Free and Open Source IP Managment Tool | Unixmen

Teemip – A Free and Open Source IP Managment Tool Source: Teemip – A Free and Open Source IP Managment Tool | Unixmen

Apr 27 2015

Link: How to set up NTP server in CentOS

Network Time Protocol (NTP) is used to synchronize system clocks of different hosts over network. All managed hosts can synchronize their time with a designated time server called an NTP server. An NTP server on the other hand synchronizes its own time with any public NTP server, or any server of your choice. The system …

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Feb 21 2015

Link: How To Install Openfire On CentOS 7

Openfire is a real time collaboration (RTC) server licensed under the Open Source Apache License. It is also known as Jabber. It uses the only widely adopted open protocol for instant messaging, XMPP. The full name of XMPP is Extensible Messaging and Presence Protocol. It is a real-time communication protocol (which includes chat) based on XML. Installation …

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Dec 08 2014

Link: Monitorix – An Open Source, Lightweight System Monitoring Tool For Linux

Monitorix is a free, Open Source monitoring tool that can be used to monitor as many services and system resources as possible. Unlike other monitoring tools, it is very simple to install, configure and monitor the systems. Initially, it was developed to support only the RPM based systems such as Red Hat, CentOS etc., but, …

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Sep 25 2014

Link: How To Reset Root Password On CentOS 7

The way to reset the root password on centos7 is totally different to Centos 6. Let me show you how to reset root password in CentOS 7. Full article here: How To Reset Root Password On CentOS 7 (Unixmen)

Aug 26 2014

Link: Setting Up DNS Server On CentOS 7

DNS, stands for Domain Name System, translates hostnames or URLs into IP addresses. For example, if we type in browser, the DNS server translates the domain name into its associated ip address. Since the IP addresses are hard to remember all time, DNS servers are used to translate the hostnames like to …

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Aug 23 2014

Link: How To Configure Static IP On CentOS 7

Question: How to switch from Dynamic to static in my CentOS 7? Answer: Full article here: How To Configure Static IP On CentOS 7 (Unixmen)

Aug 04 2014

Link: How to Create Self-Signed SSL Certificates and Keys for Apache on RHEL/CentOS 7.0

SSL (Secure Sockets Layer) is a cryptographic protocol that allows secure data flow between a server and its clients using symmetric/asymmetric keys by using a digital certificate signed by a Certificate Authority (CA). ….. This tutorial provides an approach on how to set up Secure Sockets Layer (SSL) communication cryptographic protocol on Apache Web Server …

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Jun 23 2014

Links: Setup DHCP Server On CentOS 6.5 or Ubuntu 14.04 LTS Server

DHCP Server is used to distribute IP addresses to the clients in your network. DHCP stands for Dynamic Host Configuration Protocol. It reduces the work burden to a system admin if he/she have to assign IP addresses manually to more than 100+ systems. Full articles here: Setup DHCP Server On CentOS 6.5 (Unixmen) Setup DHCP …

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