News Category: Networking

What’s New with Xen Project Hypervisor 4.8?

I’m pleased to announce the release of the Xen Project Hypervisor 4.8. As always, we focused on improving code quality, security hardening as well as enabling new features. One area of interest and particular focus is new feature support for ARM servers. Over the last few months, we’ve seen a surge...
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There’s a New DDoS Army, and It Could Soon Rival Record-Setting Mirai

For almost three months, Internet-of-things botnets built by software called Mirai have been a driving force behind a new breed of attacks so powerful they threaten the Internet as we know it. Now, a new botnet is emerging that could soon magnify or even rival that threat. The as-yet unnamed botnet...
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Open Networking Summit
The Linux Foundation is now seeking business and technical leaders to speak at Open Networking Summit 2017. Submit a talk to speak in one of our five new tracks for 2017 and share your vision and expertise. The deadline for submissions is Jan. 21, 2017.

The Linux Foundation Seeks Technical and Business Speakers for Open Networking Summit 2017

Help shape the future of open networking! The Linux Foundation is now seeking business and technical leaders to speak at Open Networking Summit 2017. On April 3-6 in Santa Clara, CA, ONS will gather more than 2,000 executives, developers and network architects to discuss innovations in networking...
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Network outage
Mark Collier, COO of the OpenStack Foundation, creating a network outage during a keynote demo at the OpenStack Summit in Barcelona.

How Virtualized Networks Will Save Us From Dropped Calls

We’ve all been the victim of a dropped mobile phone call and know how frustrating it can be. However, virtualized networks provide network operators with powerful tools to detect and recover from network disruptions, or “faults,” that can drop calls for thousands of subscribers simultaneously. The...
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What's New in OpenStack in 2016: A Look at the Newton Release

OpenStack is on a six-month release cycle, with each release given a code name starting with consecutive letters of the alphabet. On October 7th, OpenStack Newton was released. Let's look at a few highlights from OpenStack's 2016 Newton release. In addition to the usual enormous number of...
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Writing Your Own Ingest Processor for Elasticsearch

With Elasticsearch 5.0, a new feature called the ingest node was introduced. To quote the official documentation: You can use ingest node to pre-process documents before the actual indexing takes place. This pre-processing happens by an ingest node that intercepts bulk and index requests, applies...
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httpstat – A Curl Statistics Tool to Check Website Performance

httpstat is a Python script that reflects curl statistics in a fascinating and well-defined way, it is a single file which is compatible with Python 3 and requires no additional software (dependencies) to be installed on a users system. It is fundamentally a wrapper of cURL tool, means that you can...
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mail server
In this series, we will show how to build a reliable configurable mail server with Postfix, Dovecot, and OpenSSL on Ubuntu Linux.

How to Build an Email Server on Ubuntu Linux

In this fast-changing world of containers and microservices it's comforting that some things don't change, such as setting up a Linux email server. It's still a dance of many steps and knitting together several different servers, and once you put it all together it just sits there, all nice and...
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The Year in NV Trends for 2016

Is it ever too early for a Year in Review column? Didn’t think so. For this attempt, let’s take a look at the exciting trends in network virtualization (NV), as a mixture of open and proprietary technologies battle to be the cloud networking foundation of the future. On the competitive front, we...
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Syscall Auditing at Scale

If you are are an engineer whose organization uses Linux in production, I have two quick questions for you: 1) How many unique outbound TCP connections have your servers made in the past hour? 2) Which processes and users initiated each of those connections? If you can answer both of these...
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