Category: Administration

Toshiba announced two new lines of HDDs with capacities up to 6 TB and announced its focus on the corporate segment from 2020

In recent days, Toshiba has announced the release of two new series of its HDD drives: DT02-V, with a capacity of 2 to 6 TB for video surveillance systems (Digital Video Recorder/Network Video Recorder) and P300, with a capacity of 4 to 6 TB for home use . The Japanese company also announced its focus on the corporate segment from 2020 and plans to increase the number of […]

Go for ten: video and photos from the anniversary meetup

Hello! On November 30, in our office, together with the Golang Moscow community, we held a meetup on the occasion of the tenth anniversary of Go. At the meeting they discussed machine learning in Go services, solutions for multi-cluster balancing, techniques for writing Go applications for Cloud Native and the history of Go. Go to the cat if you are interested in these topics. Inside the post are all the meeting materials: video recordings of reports, [...]

Holivar. Runet history. Part 1. Beginnings: hippies from California, Nosik and the dashing 90s

It’s hard to believe that this Old Testament elder from a wealthy suburb of San Francisco is one of the founding fathers of the RuNet. Joel Schatz is a scientist, visionary, idealist and businessman, in his youth he loved experiments with consciousness; the psychedelic experience helped him feel the interconnectedness of all elements of existence. Joel Schatz: hippie and IT entrepreneur. “I wondered why the world seemed so disconnected without drugs, then I realized […]

Tricks for Handling Metrics in Kapacitor

Most likely, today no one asks why it is necessary to collect service metrics. The next logical step is to set up an alert for the collected metrics, which will notify about any deviations in the data in channels convenient for you (mail, Slack, Telegram). In the online hotel booking service Ostrovok.ru, all metrics of our services are poured into InfluxDB and displayed in Grafana, […]

What to do if mailings are already in Spam: 5 practical steps

Image: Unsplash When dealing with mailing lists, there can be surprises. A common situation: everything worked fine, but suddenly the open rate of emails dropped sharply, and the postmasters of the mail systems began to signal that your mailing lists were in Spam. What to do in such a situation and how to get out of "Spam"? Step 1. Checking for compliance with a number of criteria First of all, it is necessary to […]

Deploying Applications Easily and Naturally on Tarantool Cartridge (Part 1)

We have already talked about Tarantool Cartridge, which allows you to develop distributed applications and package them. There is nothing left: learn how to deploy and manage these applications. Don't worry, we've thought of everything! We have put together all the best practices for working with Tarantool Cartridge and wrote an ansible role that will decompose the package into servers, launch instances, unite them into a cluster, […]

Introduction to GitOps for OpenShift

Today we will talk about the principles and models of GitOps, as well as how these models are implemented on the OpenShift platform. An interactive guide on this topic is available here. In a nutshell, GitOps is a set of practices for using Git pull requests to manage infrastructure and application configurations. The Git repository within GitOps is considered the single source of information […]

SD-WAN - recent trends and forecast for 2020

Any company, large or small, uses communications in its work. This could be a cell phone, the Internet, a network for communication with regional divisions, a satellite, etc. If the company is large enough, and its divisions are located in different regions of the same country or different countries, then the amount it spends on communication services can be quite substantial. Problem in […]

Battle of WEB-servers. Part 1 - HTTP disconnected from reality:

In this article we will try our hand at reverse engineering, one might say. We'll get our dirty hands under the hood of each web server, exploiting them in ways that no one would ever exploit. This test is a measurement of a spherical horse in a vacuum, nothing more than data that was obtained, and now we do not know what to do with it. Methodology B […]

$11 million invested in intelligent cybersecurity platform

The issue of security is acute for every company working with data. Modern tools allow attackers to successfully imitate the activities of an ordinary user. And security mechanisms do not always recognize and stop unauthorized access attempts. The result is information leaks, theft of funds from bank accounts, and other troubles. The Spanish company Buguroo proposed its solution to this problem, using deep learning […]

Bunch OpenVPN + Windows Server and Mikrotik with the migration of this stuff in Linux

Hello! Every business sooner or later suddenly needs remote access. Almost every IT specialist faces the need to organize remote access to their networks in an enterprise. For me, like many others, this need hit me like “yesterday.” After analyzing all the pros and cons, as well as sifting through tons of information and poking around a little in theory, I decided to proceed with the installation. […]

What happens with connections inside and outside the VPN tunnel

Real articles are born from letters to Tucha technical support. For example, we were recently approached by a client with a request to clarify what happens during connections inside the VPN tunnel between the user’s office and the cloud environment, as well as during connections outside the VPN tunnel. Therefore, the entire text below is an actual letter that we sent to one of our clients in response to […]

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