Documentation! When you decide to write your own hook-catching bicycle from Docker Hub or from the registry for automatic container updates or startup on the server, you might find the Docker CLI useful, which will help manage the Docker daemon in your system. You will need Go version 1.9.4 or higher. If you haven't switched to modules yet, install the CLI with the following command: […]
If you use a time series database (timeseries db, wiki) as the main storage for a site with statistics, you might end up with a lot of headaches instead of a solution. I am working on a project that uses such a database, and sometimes InfluxDB, which I will discuss, brought unexpected surprises. Disclaimer: the issues mentioned apply to version InfluxDB 1.7.4. Why time series? The project […]
Introduction to Operating Systems Hello, Habr! I would like to present to your attention a series of translated articles on literature that I find interesting — OSTEP. This material explores in depth the workings of Unix-like operating systems, specifically focusing on processes, various schedulers, memory, and other similar components that make up a modern OS. You can view the original materials here. […]
Hello again! Classes in the new group of the "Linux Administrator" course begin tomorrow, so we are publishing a useful article on the topic. In the previous tutorial, we covered how to use pam_cracklib to strengthen passwords in Red Hat 6 or CentOS systems. In Red Hat 7, pam_pwquality replaced cracklib as the default pam module for validation […]
About a year ago, on April 3, 2018, the Federal Service for Technical and Export Control of Russia published Order No. 55. It approved the Regulations on the information protection means certification system. This defined who is a participant in the certification system. It also clarified the organization and procedure for certifying products designed to protect confidential information that constitutes state secrets, with the means of protection also needing to be certified through the specified system. […]
On June 17 (Monday), the second annual Tarantool Conference, or simply T+ Conf, will take place at the Mail.ru Group office. It is aimed at both beginners and experienced developers and architects in the corporate sector. Expect new talks and workshops on using in-memory computing, Tarantool / Redis / Memcached, cooperative multitasking, and the Lua language for building high-load fault-tolerant […]
LanguageTool is a free open-source system for checking grammar, style, punctuation, and spelling. The core functionality of LanguageTool can be used as an extension for LibreOffice/Apache OpenOffice and as a Java application. An online text checking form is available on the system's website http://www.languagetool.org/ru. A separate LanguageTool proofreader app is available for Android mobile devices. In the new version 4.5: Updated checking modules for Russian […]
The ZeroNet version rewritten in Python3 is ready for testing. ZeroNet is free and open-source software, a peer-to-peer network that does not require servers. It uses BitTorrent technology to exchange web pages and Bitcoin cryptography to sign transmitted data. It is considered a censorship-resistant method of delivering information without a single point of failure. The network is not anonymous due to the nature of the BitTorrent protocol. ZeroNet supports […]
"Secure Shell" (SSH) is a network protocol for establishing a secure connection between hosts, typically over port 22 (which is better changed). SSH clients and SSH servers are available for most operating systems. Inside SSH, nearly any other network protocol can operate, meaning you can work remotely on another computer, transmit audio or video streams over an encrypted channel, etc. Additionally, through […]
Practical examples of SSH that will elevate your remote system administrator skills. Commands and tips will help not only to use SSH but also to navigate the network more effectively. Knowing a few SSH tricks is beneficial for any system administrator, network engineer, or security specialist. Practical SSH examples SSH socks proxy SSH tunneling (port forwarding) SSH tunnel to a third host […]
This article is a continuation of the previous material dedicated to the features of configuring Palo Alto Networks equipment. Here, we want to discuss setting up IPSec Site-to-Site VPN on Palo Alto Networks hardware and a possible configuration option for connecting multiple Internet service providers. A standard scheme connecting the head office to a branch office will be used for demonstration. To ensure a fault-tolerant Internet connection, […]
Greetings, esteemed Habr readers! Today, we'll talk about a pressing issue + a few clarifications regarding this article. I will start by saying that I have been involved in recruitment for over 11 years. I have gone through all stages of development, from a junior recruiter to a human resources director. I've seen a lot and have stories to tell. Recruitment, like any other activity in working with […]