Selectel and Open-Source Software

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Our company has been working on open-source projects for over five years now. We registered on GitHub in May 2011 and have already published around 30 repositories. Even though we’ve mentioned some of our projects in older posts, we’d like to take today to review a few of these.

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Keeping Track of IP Addresses

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In our line of work, we often run into problems rationally distributing IP address blocks. Distributing addresses to thousands of clients is by no means an easy task. In this article, we’re going to share our solution with you.

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Guest Post: Our Experience with Selectel’s VRRP

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Today’s post was written by our client ITSumma.

ITSumma provides remote server administration, website technical support, and ensures online service availability under high and super high loads.

In this article, Anton Baranov, Victoria Andrienko, and Evgenii Potapov share their experience with our IP Failover (VRRP) service. If you’re looking to improve your project’s availability and fault-tolerance, you should definitely consider what they have to say.

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Router Redundancy with VRRP

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In a previous article, we touched on the problems of redundant network infrastructures and looked at how MC-LAG technology works. Today, we’re going to talk about a more complex, but reliable, technology that enables redundancy at the data center level. What we’re talking about here is boosting router availability using VRRP (Virtual Router Redundancy Protocol).

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Virtual Private Cloud: Regions and Zones

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The Virtual Private Cloud (VPC) used to operate entirely out of one data center in St. Petersburg, and as a result, it lacked pools. We made it a point to address this issue and we’ve kept our word: we’ve opened a new VPC pool in our Moscow data center, Berzarina. This ensures fault-tolerance, improves connectivity, and raises the performance of our users’ resources.

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Berzarina: An Inside Look

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How do you keep a data center up and running 24/7/365? A lot of our clients have some idea how this is done, but even those who see the server rooms don’t get the full picture. To give you a better idea of how this all works, today we’re going to give you a small behind-the-scenes look at our Berzarina data center in Moscow.

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Introduction to DPDK: Architecture and Principles

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Linux network stack performance has become increasingly relevant over the past few years. This is perfectly understandable: the amount of data that can be transferred over a network and the corresponding workload has been growing not by the day, but by the hour.

Not even the widespread use of 10 GE network cards has resolved this issue; this is because a lot of bottlenecks that prevent packets from being quickly processed are found in the Linux kernel itself.

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Storing Personal Data in Russia

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On September 1, 2015, a law came into effect regarding how the personal data of Russian citizens is stored. Although over a year has passed, the law is again making headlines as the social network LinkedIn was recently blocked for failing to comply with new legal requirements. Today, we’d like to clear up some of the confusion surrounding this legislation and what exactly is stipulated by it.

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