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“How to set up networks for novice analysts” or a review of the online course “Start in Data Science”

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It's been 'a thousand years' since I've written anything, but suddenly there was an unexpected reason to dust off the mini-series of publications on 'Starting Data Science from Scratch.' In a contextual advertisement on one of the social networks, as well as on my favorite 'Habr', I came across information about the course 'Start in Data Science.' It cost a mere pittance, and the course description was vibrant and promising. 'Why […]

Release of Wi-Fi daemon IWD 0.19

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The release of Wi-Fi daemon IWD 0.19 (iNet Wireless Daemon), developed by Intel as an alternative to wpa_supplicant for connecting Linux systems to wireless networks, is now available. IWD can serve as a backend for network configurators such as Network Manager and ConnMan. A key goal of developing this new Wi-Fi daemon is to optimize resource consumption, such as memory usage and disk size. IWD […]

KVM (pseudo)VDI with disposable virtual machines using bash

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Who is this article for? This article may be of interest to system administrators facing the task of creating a service for 'one-time' workstations. Prologue A request was made to the IT support department of a young, rapidly developing company with a small regional network to establish 'self-service stations' for their external clients. These stations were intended for registration on the company's external portals, uploading […]

Polycom VideoConference Solutions. Memories 6 years later… Stage 2. Part 1. RMX1500

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Good afternoon, colleagues. The time has finally come to fulfill my promise and share how everything continued and concluded. I apologize for the delay. There will be 2 parts: RMX1500 CMA4000 The text below will contain a lot of letters and may provoke a misjudgment of my attitude towards this decision. In conclusion, I will reveal that I have a neutral but positive view of Polycom, […]

Bypassing LinkedIn's search limit by playing with the API

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There is a limit on LinkedIn — a limit on commercial use. It is highly likely that you, like I did until recently, have never encountered or heard of it. The essence of the limit is that if you use the people search feature outside your contacts too frequently (there are no exact metrics; it's determined by the algorithm based on your actions — how often […]

How to stop doing the same thing over and over

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Do you love repeating routine operations over and over? Well, I certainly don't. But every time I worked with the Rostelecom storage in an SQL client, I had to manually write out all the joins between the tables. In fact, in 90% of cases, the fields and conditions for joining the tables matched from query to query! It would seem that any SQL client has auto-completion features, but […]

Technical support on one… two… three…

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Why do you need special software for technical support, especially if you already have a bug tracker, CRM, and email? Hardly anyone thinks about this, because companies with strong technical support have likely had a helpdesk system for a long time, while others handle client inquiries and requests 'on the fly,' often just via email. This can lead to […]

The i3wm window manager 4.17 is available.

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The release of the tiling window manager i3wm 4.17 has taken place. The i3wm project was created from scratch after a series of attempts to address the shortcomings of the wmii window manager. i3wm features well-readable and documented code, uses xcb instead of Xlib, correctly supports operation in multi-monitor configurations, employs tree data structures for window positioning, provides an IPC interface, supports UTF-8, and maintains minimalism in window design. […]

New vulnerabilities in the WPA3 wireless network protection technology and EAP-pwd

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Mathy Vanhoef and Eyal Ronen have discovered a new attack method (CVE-2019-13377) on wireless networks using WPA3 protection technology, which allows retrieval of password characteristics that can be used for offline password cracking. The issue arises in the current version of Hostapd. It is worth noting that these authors previously identified six vulnerabilities in WPA3 in April.

GitHub is among the defendants in the case of the Capital One user database leak

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Law firm Tycko & Zavareei has filed a lawsuit related to a data breach affecting more than 100 million clients of Capital One banking holding, including details of approximately 140,000 social security numbers and 80,000 bank account numbers. In addition to Capital One, GitHub is also included as a defendant, being accused of providing the means to host, display, and use the information obtained.

10 Steps to YAML Zen

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We all love Ansible, but Ansible is YAML. There are many formats for configuration files: lists of values, key-value pairs, INI files, YAML, JSON, XML, and many others. However, for several reasons, YAML is often considered particularly difficult among them. Specifically, despite its refreshing minimalism and impressive capabilities for handling hierarchical values, the syntax of YAML...

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