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The material of the article is taken from my Zen channel. In the previous article, I promised to address the issue of workload assessment on the ticker and ways to combat excessive computational load in the media streamer. However, I decided it would be more logical to first cover debugging craft filters related to data movement, and only then discuss performance optimization. Debugging craft filters After we in […]
When the amount of data exceeds what can fit on one disk, it's time to consider RAID. In my childhood, I often heard from older folks: "One day RAID will be a thing of the past, object storage will take over the world, and you won't even know what CEPH is," so the first thing I did in my independent life was to create my own cluster. The goal of this experiment was to familiarize myself with the internal structure of Ceph […]
An emergency patch release of Firefox 78.0.1 has been published, which addresses an issue that arose in Firefox 78 causing installed search engines to disappear. After updating the browser, the quick access list to search engines was empty for some users, disrupting the auto-completion feature in the address bar and preventing queries from being sent through the search field on the homepage. The cause of the failure was related to enabling […]
Developers of Fedora are discussing the discontinuation of booting using the classic BIOS and leaving the option for installation only on systems that support UEFI. It is noted that systems based on the Intel platform have been shipped with UEFI since 2005, and by 2020, Intel planned to cease support for BIOS in client systems and data center platforms. The discussion on phasing out BIOS support […]
Have you ever wondered what a scanner does with a VDI station? At first, everything seems fine: it is passed through as a regular USB device and is "transparently" visible from the virtual machine. Then the user gives the command to scan, and everything falls apart. At best — the scanner driver, worse — after a couple of minutes the scanning software, and then it may also affect other cluster users. Why? Because […]
Dear reader! We can't wait to introduce you to a unique and useful feature of our IT infrastructure management system that makes diligent users happy and lazy ones unhappy. For more details, we invite you under the cut. We've already extensively covered the nuances of development (1, 2), the main functionality of Veliam, and monitoring in previous articles, leaving the most interesting aspects […]
Oh, the wonderful discoveries that Parallels and Citrix prepare for us! The careless ignorant will suddenly disappear for a moment. This article is a logical continuation of "Comparison of VDI and VPN" and is dedicated to my deeper acquaintance with the company Parallels, particularly their product Parallels RAS. I recommend reading the previous article for a complete understanding of my position. Perhaps some readers […]
A release of the specialized distribution Tails 4.8 (The Amnesic Incognito Live System) has been created, based on the Debian package base and designed to provide anonymous internet access. Anonymous access in Tails is ensured by the Tor network. All connections, except for traffic through the Tor network, are blocked by the packet filter by default. To store user data in persistent mode between sessions, […]
The release of the dynamic tracing and analysis platform Frida 12.10 has been introduced, which can be viewed as an equivalent to Greasemonkey for native programs, allowing control over a program’s operation during execution, just as Greasemonkey allows control over the processing of web pages. Program tracing is supported on Linux, Windows, macOS, Android, iOS, and QNX platforms. The source code of all project components is distributed under a free […]
In this article, I will attempt to compare two completely different technologies: VDI and VPN. I have no doubt that, due to the pandemic that unexpectedly struck all of us in March of this year, specifically the shift to remote work, you and your company have long made a decision on how to optimally ensure comfortable conditions for […]
The developers of the Chromium project have made a change that sets the maximum lifespan for TLS certificates at 398 days (13 months). This condition applies to all public server certificates issued after September 1, 2020. If a certificate does not comply with this requirement, the browser will reject it as invalid, specifically responding with the error ERR_CERT_VALIDITY_TOO_LONG. For certificates issued before September 1, 2020, trust […]
At the age of 33, I've decided to pursue a master's degree in computer science. I graduated with my first degree back in 2008, and it was not in the IT field; a lot has changed since then. Like any other student, especially one with Slavic roots, I became curious about what I could receive for free (in […]