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• Software Defined Networking (SDN) - Architecture and role of Openflow

  Author: Himanshu Arora • Tags: linux, networking • Comments: 1 • Published: Jun 23, 2017

  In our previous article, we had a good overview of SDN as a technology, why it’s needed, and how IT industry is adopting it. Now, let’s get a layer deeper, and understand SDN’s architecture and the role of the Openflow protocol in the implementation of the technology.

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• Linux cksum command explained for beginners (with examples)

  Author: Himanshu Arora • Tags: linux, shell • Comments: 1 • Published: Jun 22, 2017

  In Linux, there's a command line tool that you can use to create/verify checksum. It's dubbed cksum. Most vendors offer a checksum (or a checksum-like code) corresponding to the file(s) being downloaded. If the file doesn't behave in an expected way, user's can recompute the file's checksum and compare it with the original checksum provided by the vendor to see if the file is intact or got corrupted.

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• Linux clear command tutorial for beginners (3 examples)

  Author: Himanshu Arora • Tags: linux, shell • Comments: 1 • Published: Jun 21, 2017

  Sometimes, while working on the command line, you arrive at a point where there's too much text on the terminal screen, and none of that is relevant to you. So, in order to avoid distraction, you'd want to clear the terminal screen. Those new to the Linux command line may not know that there exists a dedicated command line utility that does this work for you.

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• The Perfect Server - Debian 9 (Stretch) with Apache, BIND, Dovecot, PureFTPD and ISPConfig 3.1

  Author: Till Brehm • Tags: apache, control panels, debian, ispconfig, web server • Comments: 2 • Published: Jun 20, 2017

  This tutorial shows how to prepare a Debian 9 server (with Apache2, BIND, Dovecot) for the installation of ISPConfig 3.1. The web hosting control panel ISPConfig 3 allows you to configure the following services through a web browser: Apache web server, Postfix mail server, Dovecot IMAP/POP3 server, MySQL, BIND nameserver, PureFTPd, SpamAssassin, ClamAV, and many more.

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• How to install a Debian 9 (Stretch) Minimal Server

  Author: Till Brehm • Tags: debian, linux • Comments: 0 • Published: Jun 19, 2017

  This tutorial shows how to install a Debian 9 (Stretch) minimal server in detail with many screenshots. The purpose of this guide is to provide a minimal setup that can be used as basis for our other Debian 9 tutorials here at howtoforge.com.

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• nginx: How To Block Exploits, SQL Injections, File Injections, Spam, User Agents, Etc.

  Author: falko • Tags: linux, nginx, security, web server • Comments: 8 • Updated: Jun 16, 2017

  This short article explains how you can block the most common exploits, SQL injections, file injections, spam and user agents used by hackers and bandwidth hoggers from your nginx vhosts with some simple configuration directives. This configuration is far from being complete, but it's a good starting point. You will have to watch your logs for attempted break-in attempts and then try to modify/complete the ruleset.

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• How to Install OrangeHRM on Ubuntu

  Author: Hitesh Jethva • Tags: linux, server, ubuntu, web server • Comments: 0 • Published: Jun 15, 2017

  OrangeHRM is a widely used, web-based, open-source human resource management software that can be used to manages employee's attendance, performance, recruitment and annual appraisals.

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• Linux Chgrp Command for Beginners (5 Examples)

  Author: Himanshu Arora • Tags: linux, shell • Comments: 0 • Published: Jun 14, 2017

  Here at HowtoForge, we recently discussed the chown command which lets users change the owner as well as group of file (or a directory) in Linux. But did you know there exists a dedicated command line utility that you can use when it comes to changing group-related information? The tool in question is chgrp, and in this tutorial, we will be discussing this tool using easy to understand examples.

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• Samba 4 with Active Directory on CentOS 7 rpm based installation with share support

  Author: iron_michael86 • Tags: centos, linux, samba • Comments: 1 • Published: Jun 13, 2017

  This tutorial shows how to install Samba 4 with Active Directory support on CentOS 7 with precompiled packages from Wing repository and SELinux enabled.

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• How to configure MySQL Multi-Master Replication on Oracle Linux

  Author: shahril bin kamaruzzaman • Tags: centos, linux, mysql • Comments: 0 • Published: Jun 12, 2017

  This tutorial explains how to setup and configure MySQL multi-master replication on Oracle Linux. Please note that even though the configuration is made under Oracle Linux, yet the steps and configuration are mainly the same to CentOS and Red Hat Linux.

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