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• Samba 4 Additional Domain Controller for failover Replication on CentOS 7

  Author: iron_michael86 • Tags: centos, linux, samba, server • Comments: 1 • Published: Jun 28, 2017

  In this tutorial, I will show you how to configure an additional domain controller which is one of the key features of SAMBA 4. This setup provides a degree of load balancing and failover for AD services (Ldap schemas and dns ) and configuring it is really easy. We can also use this feature to scale up the environment.

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• Linux Commands - Overview and Examples

  Author: Himanshu Arora • Tags: linux, shell • Comments: 1 • Updated: Jun 27, 2017

  The command line is one of the most powerful features of Linux. There exists a sea of Linux command line tools, allowing you to do almost everything you can think of doing on your Linux PC. However, this usually creates a problem: with so many commands available to use, you don't know where and how to start learning them, especially when you are beginner.

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• Install Nginx with ngx_pagespeed on CentOS 7

  Author: Hitesh Jethva • Tags: centos, linux, server, web server • Comments: 0 • Published: Jun 27, 2017

  Ngx-pagespeed is a free and open source Nginx module that can be used to speeds up your site and reduces page load time. It works by automatically applying web performance best practices to pages and associated assets without requiring you to modify your existing content or workflow. You can easily optimize various files such as CSS, HTML, png, and jpg using Ngx-pagespeed module.

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• How to Install Restyaboard on CentOS 7

  Author: Liptan Biswas • Tags: centos, linux, server • Comments: 0 • Published: Jun 26, 2017

  Restyaboard is a free and open-source Kanban board application. It is the best self-hosted alternative to Trello. It is written in PHP and uses PostgreSQL to store its database. In this tutorial, we will install Restyaboard on CentOS 7 server.

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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: 5 • 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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