Архивы linux - Page 2 of 2

Live Kernel Patching: Modern Tools

Тирекс 18 January 2017 7 min read

Back in 2014, the best (if not only) option for patching the Linux kernel without rebooting was KernelCare, a tool developed by our partners at Cloud Linux.

The situation has since changed quite a bit as live patching has officially been included in the kernel as of version 4.0. The tools kpatch and kGraft, which were still in development in 2014, have also been massively improved. Kpatch was even added to the official repository and in Ubutnu 16.04, it can be installed from the default package manager. Canonical has also recently released their Canonical Livepatch Service, which can be used to patch the Ubuntu kernel without rebooting.

Virtual Private Cloud: CoreOS and RancherOS

Тирекс 11 January 2017 16 min read

We recently updated the version of CoreOS available in our Virtual Private Cloud and also added RancherOS to our list of available images.

These operating systems are useful for managing a large number of applications in containers and for using different container clustering systems, like Kubernetes, Docker Swarm, Apache Mesos, etc.

Troubleshooting Windows with Selectel Rescue

Александр Тугов 22 December 2016 5 min read

Any user can run into serious issues: viruses, physical disk damage, errors updating the system, etc. In these situations, most Windows resources aren’t terribly useful. There is, however, another way to troubleshoot these errors: by using Linux.

Introduction to DPDK: Architecture and Principles

Тирекс 24 November 2016 13 min read

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.