Administration Section
Continuation of the article "An Attempt to Create an ASH Analog for PostgreSQL." This article will discuss and demonstrate, using specific queries and examples, what useful information can be obtained through the pg_locks presentation history. Warning: Due to the novelty of the topic and the ongoing testing phase, the article may contain errors. Criticism and comments are welcomed and anticipated. Input data […]
This article's translation is specially prepared for students of the "Cloud Services" course. Interested in developing in this area? Check out the recording of the professional masterclass "AWS EC2 Service," conducted by Yegor Zuev — TeamLead at InBit and author of the educational program at OTUS. Google Cloud Platform (GCP) offers a variety of services, particularly a compute stack that includes Google Compute Engine (GCE), Google […]
Hello colleagues, welcome to the lesson on migrating Check Point R77.30 databases to R80.10. When using Check Point products, eventually the task of migrating existing rules and object databases arises for the following reasons: When purchasing a new device, it is necessary to migrate the database from the old device to the new one (to the current version of GAIA OS or […]
The next release of the Gaia R80.40 operating system is approaching. A few weeks ago, the Early Access program started, allowing users to test the distribution. As usual, we publish information about the new features, highlighting the aspects that are most interesting from our perspective. Looking ahead, I can say that the innovations are indeed significant. So, it’s worth preparing for […]
Today's video lesson on Distance Vector and Link State routing protocols precedes one of the most important topics in the CCNA course – the OSPF and EIGRP routing protocols. This topic will take 4 or even 6 upcoming video lessons. Therefore, today I will briefly discuss several concepts that need to be understood before starting to study OSPF and EIGRP. In the last lesson, we […]
Inspired by the article "Categories Instead of Directories, or a Semantic File System for Linux Vitis", I decided to create my own analog of the vitis utility for PowerShell Core. Why did I start this? First, vitis is only for Linux. Second, I want to use "pipes" in PowerShell. As I wanted to create a cross-platform utility, I chose .Net Core. Backstory: It all started with chaos. […]
Good day, dear readers. I will be brief and break the article into points. Organizational Issues The number of users of the AutoCAD software exceeds the number of local network licenses. The number of specialists working with AutoCAD software is not regulated by any internal document. Based on point #1, refusing to install the program is nearly impossible. Poor organization of work leads to a shortage of licenses, which results in […]
Hello, Habr. This is the second article in the ssh-chat series. What we will do: Add the ability to create custom formatting functions, Add markdown support, Add bot support, Increase password security (hash and salt). Unfortunately, there will be no file sending feature. Custom formatting functions: Currently, the following formatting functions are implemented: @color @bold @underline @hex @box. However, we should add the ability to create […]
Continuation of the article “Attempt to create an ASH analog for PostgreSQL.” The article will examine and demonstrate, through specific queries and examples, what useful information can be derived from the pg_stat_activity view history. Warning: Due to the novelty of the topic and the ongoing testing period, the article may contain mistakes. Criticism and comments are welcome and expected. Input data […]
Continuation of the translation of a small book: 'Understanding Message Brokers', author: Jakub Korab, publisher: O’Reilly Media, Inc., publication date: June 2017, ISBN: 9781492049296. Previous translated part: Understanding message brokers. Exploring the mechanics of message exchange via ActiveMQ and Kafka. Chapter 1: Introduction. CHAPTER 3 Kafka. Kafka was developed at LinkedIn to overcome some limitations of traditional message brokers and […]
What happens if you run an intermediate Tor node on your IP address and how long it takes to 'clean' from it afterward. Since the caring Federal Service for Supervision of Communications has started protecting us from unfavorable information, various means to bypass this 'care' have been used. Primarily the Tor browser, but visiting trackers can be somewhat inconvenient — every time you need to enter a password, in […]
On July 26, 2019, Google proposed to reduce the maximum validity period of SSL/TLS server certificates from the current 825 days to 397 days (about 13 months), effectively halving it. Google believes that only full automation in certificate management can eliminate the current security issues often attributed to human error. Therefore, ideally, it is necessary to […]