Linux Tutorials on the topic “networking”

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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Software Defined Networking (SDN) explained for beginners
Author: Himanshu Arora • Tags: linux, networking • Comments: 0 • Published: Jun 08, 2017
Over the past few years, Software Defined Networking (SDN) has been a key buzz in the computer networking/IT industry. Today, more and more companies are discussing SDN to leverage it for their business and future growth plans.

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Improve Network Performance with openDataplane and Open Fast Path on Ubuntu 16.04
Author: Ahmad • Tags: linux, networking, server, ubuntu • Comments: 8
The performance of Linux-based network solutions was one of the biggest issues in the past and that's why Intel started the Data Plane Development Kit (DPDK) project. The goal of the ODP environment is to provide a crossplatform framework for data plane applications. OpenFastPath (OFP) is another open source implementation of a high-performance TCP/IP stack which is helpful for network applications with a traditional Linux stack. In this tutorial, OFP will be installed on an Ubuntu 16.04 VM.

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Install and configure DRDB for network filesystem replication on Debian 8
Author: Matteo Temporini • Tags: debian, linux, networking, ubuntu • Comments: 1
This tutorial explains the configuration of a DRBD network filesystem replication as hot standby (Primary/Secondary) with EXT4 filesystem and as Primary/Primary cluster for High Availability with OCFS2 filesystem.

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How to configure failover and high availability network bonding on Linux
Author: shahril bin kamaruzzaman • Tags: high-availability, linux, networking • Comments: 2
This tutorial explains how to configure network bonding on Linux server. Before I start, let me explain what network bonding is and what it does. In a Windows environment, network bonding is called network teaming, this is a feature that helps any server architecture to provide high availability and failover in scenarios were one of the main ethernet cable has a malfunction or is misconfigured.

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How to Install Nagios Server Monitoring on Ubuntu 16.04
Author: Muhammad Arul • Tags: linux, monitoring, networking, server, ubuntu • Comments: 23
Nagios is an open source software for system and network monitoring. Nagios can monitor the activity of a host and its services, and provides a warning/alert if something bad happens on the server. Nagios can run on Linux operating systems. At this time I will use Ubuntu 16.04 for the installation.

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GNS3 - Emulating Network Infrastructure on Debian 8.2
Author: Adolfo L. Rivas C. • Tags: debian, linux, networking • Comments: 2
In this tutorial, I will show you the basis to install and operate this software. The GNS3 version that will be used in this tutorial is the 1.5.1, on a Debian 8.2 (Jessie) system. GNS3 (Graphical Network System 3) is an emulation software that let's you see the interaction of network devices in a network topology.

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Thoughts on Monitoring file changes with Linux over the network
Author: stefbon • Tags: centos, debian, linux, networking, opensuse, shell, ubuntu • Comments: 0
Monitoring a directory for changes with Linux is possible through the well-known mechanism inotify. With inotify it's possible to set a watch on a directory, configure it to watch events on the contents, and you'll receive messages on a file descriptor when something happens. This works perfectly when the directory is on local storage, like a hard drive, SSD or a USB drive, But it is not sufficient when the directory is on a network filesystem when the storage is on another computer. Another user working in the same directory, connected via the same or another filesystem, can remove a file and the watch you've set on it will not get notified.

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How to install a wireless hotspot with captive page on Linux using CoovaChilli
Author: Joseph Zikusooka • Tags: fedora, linux, mysql, networking, security • Comments: 4
The purpose of this article is to demonstrate how you can turn a Linux based computer or laptop into a wireless hotspot where users can be authenticated via a captive portal page. For this task, the primary controller software will be CoovaChilli. This software is an ideal hotspot management solution for hotels, restaurants, supermarkets, parks, and any place offering WiFi Internet.

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How to use the NMAP Security Scanner on Linux
Author: Bill Toulas • Tags: linux, networking, security • Comments: 0
Nmap is a free and open source network discovery and security auditing utility that is widely used in the Linux users community as it is simple to use yet very powerful. Nmap works by sending data packets on a specific target (by IP) and by interpreting the incoming packets to determine what posts are open/closed, what services are running on the scanned system, whether firewalls or filters are set up and enabled, and finally what operation system is running.

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