News Category: Networking

How to Install NTP Server and Client(s) on Ubuntu 18.04 LTS

NTP or Network Time Protocol is a protocol that is used to synchronize all system clocks in a network to use the same time. When we use the term NTP, we are referring to the protocol itself and also the client and server programs running on the networked computers. NTP belongs to the traditional...
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An Introduction to Linux Virtual Interfaces: Tunnels

Linux has supported many kinds of tunnels, but new users may be confused by their differences and unsure which one is best suited for a given use case. In this article, I will give a brief introduction for commonly used tunnel interfaces in the Linux kernel. There is no code analysis, only a brief...
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NFV
In anticipation of the upcoming Open Networking Summit, we talked with Thomas Nadeau, Technical Director NFV at Red Hat, about the role of open source in innovation for telecommunications service providers.

How Open Source Is Accelerating NFV Transformation

Red Hat is noted for making open source a culture and business model, not just a way of developing software, and its message of open source as the path to innovation resonates on many levels.   In anticipation of the upcoming Open Networking Summit, we talked with Thomas Nadeau, Technical Director...
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A Musical Tour of Hints and Tools for Debugging Host Networks

Shannon Nelson from the Oracle Linux Kernel Development team offers these tips and tricks to help make host network diagnostics easier. He also includes a recommended playlist for accompanying your debugging! Ain't Misbehavin' (Dinah Washington) As with many debugging situations, digging into and...
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ONS
Check out the lineup of community demos happening in the LF Networking Booth at the Open Networking Summit Event, April 3-5 in San Jose, CA.

Community Demos at ONS to Highlight LFN Project Harmonization and More

A little more than one year since LF Networking (LFN) came together, the project continues to demonstrate strategic growth, with Telstra coming on in November, and the umbrella project representing ~70% of the world’s mobile subscribers. Working side by side with service providers in the technical...
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A Linux Sysadmin’s Guide to Network Management, Troubleshooting and Debugging

A system administrator’s routine tasks include configuring, maintaining, troubleshooting, and managing servers and networks within data centers. There are numerous tools and utilities in Linux designed for administrative purposes. In this article, we will review some of the most used command-line...
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Arpit Joshipura
The standard registration price for Open Networking Summit ends March 17, so hurry and register today! Also be sure to check out the Day Passes and Hall Passes available.

ONS Evolution: Cloud, Edge, and Technical Content for Carriers and Enterprise

The first Open Networking Summit was held in October 2011 at Stanford University and described as “a premier event about OpenFlow and Software-Defined Networking (SDN)”. Here we are seven and half years later and I’m constantly amazed at both how far we’ve come since then, and at how quickly a...
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A Brief History of Wi-Fi Security Protocols from “Oh My, That’s Bad” to WPA3

Thanks to upcoming developments in Wi-Fi, all of us connectivity-heads out there can look forward to getting familiar with new 802.11 protocols in the near future. Ars took a deep look at what's on the horizon last fall, but readers seemed to have a clear request in response—the time had come to...
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The Lost Worlds of Telnet

Most people think of Telnet as “that thing I used to use to remotely access servers.” But a few hearty souls are still keeping their Telnet services online — and it’s a great way to experience some good old-fashioned time-wasting fun! Although, as a work tool, Telnet has long been deprecated in...
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Kubernetes Warms Up to IPv6

There’s a finite number of public IPv4 addresses and the IPv6 address space was specified to solve this problem some 20 years ago, long before Kubernetes was conceived of. But because it was originally developed inside Google and it’s only relatively recently that cloud services like Google and AWS...
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