obu4alka.ru
RegisteredAbout the projectObu4alka. ru is a technical resource that positions itself as System Administrator Notes. The project specializes in practical articles on setting up and optimizing Windo...
obu4alka.ru Website screenshot
Website Description
About the project
Obu4alka. ru is a technical resource that positions itself as System Administrator Notes. The project specializes in practical articles on setting up and optimizing Windows and Linux operating systems. The content here is purely applied: reviews of specific programs, analyzes of commands and scripts, as well as materials on information security.
The site does not try to be a universal portal. This is more of a collection of notes for those who are faced with real problems in the operation of servers and workstations. The author's style implies a direct conversation about technical nuances without unnecessary fluff.
Main directions
The site's content is clearly structured around key technologies and utilities. If you look closely at the sections and headings of the articles, you can identify several main vectors:
- Linux Administration (Ubuntu):A significant part of the materials is devoted to modern versions of Ubuntu (in particular, 22.04). Here they discuss working with Netplan, problems after rebooting network settings, managing Open vSwitch and systemd services.
- Web servers and networks:Special attention is paid to Nginx. The articles describe specific startup errors (such as problems with sockets or address families), as well as methods for clearing the DNS cache in different distributions.
- Security:There are sections about Fail2Ban, which discuss socket access errors and how to resolve them. Topics of information security in general are also covered.
- Tools and utilities:Users are offered solutions for testing disk speed (read-write), working with archivers (Zip, 7-Zip, xz) and correcting GPT PMBR partitioning errors via parted or gdisk.
- Development and integration environments:The site contains instructions for enabling the Windows Subsystem for Linux (WSL) on Windows 1011, as well as examples of running scripts when the network starts.
Site Features
The main feature of Obu4alka. ru - focus on solving specific incidents. Articles are often built around real error messages: from WARNING:root:Cannot call Open vSwitch to problems with Nginx starting or partition size mismatches.
The texts are written in the format of step-by-step guides. The author does not just describe the theory, but shows which files to open, what text to add and how to interpret the terminal output. For example, the situation with the InputOutput Error error is examined in detail, linking it with problems with the system disk, or it explains how to run a command in the background so that it does not freeze the console.
It is interesting that the materials also cover related topics, such as customizing the Monaco editor interface or working with post pagination, which indicates the author’s attempt to cover a wide range of system administrator tasks, from low-level kernel settings to working with web interfaces.
Contact information
There are no direct contacts (email, phone, physical address) in the site materials provided. Only the standard notice of consent to the processing of personal data through cookies (Google Analytics, Yandex. Metrics) is mentioned, but without detailing the privacy policy or ways to contact the author.
FAQ
FAQ
What should I do if the network settings are reset after rebooting Ubuntu 22.04?
The site recommends paying attention to the Netplan tool. In such cases, users are often faced with the need to reset settings or check the correctness of YAML configuration files, since it is this tool that is responsible for managing the network in modern versions of the distribution.
How to fix the Nginx startup error: socket() failed (97)?
The Address family not supported by protocol error when starting Nginx often occurs after replacing Apache. The solution involves checking the configuration files and adding the necessary parameters to support the desired address families so that the server can correctly listen on port 80.
Why does the Open vSwitch warning appear in Ubuntu?
Message WARNING:root:Cannot call Open vSwitch: ovsdb-server. service is not running indicates that the Open vSwitch database service is not running. This is a common problem when applying network settings via Netplan in newer versions of Ubuntu and requires checking the status of the service.
How to solve Fail2Ban error with socket access?
If after installation Fail2Ban gives an error accessing the path varrunfail2banfail2ban. sock, it means the service is not working correctly. The site describes a method for diagnosing and eliminating this problem to restore the operation of brute force protection.
What to do with the GPT PMBR size mismatch error?
To fix the disk layout error, use the parted or gdisk utility. These tools allow you to synchronize partition tables and eliminate system warnings about size mismatches.
Main Information
Server Information
Meta Tags List
- charset: UTF-8
- name: viewport content: width=device-width, initial-scale=1
- name: robots content: max-snippet:320,max-image-preview:standard,max-video-preview:-1
- name: description content: Статьи по настройке и оптимизации компьютера на ОС Windows и Linux. Обзоры программ, команд и скриптов. Статьи про информационную безопасность и IT-технологии.
- property: og:type content: website
- property: og:locale content: ru_RU
- property: og:site_name content: Obu4alka.ru
- property: og:title content: Obu4alka.ru
- property: og:description content: Статьи по настройке и оптимизации компьютера на ОС Windows и Linux. Обзоры программ, команд и скриптов. Статьи про информационную безопасность и IT-технологии.
- property: og:url content: https://obu4alka.ru/
- property: og:image content: https://obu4alka.ru/wp-content/uploads/2019/08/linux-1.jpg
- property: og:image:width content: 300
- property: og:image:height content: 300
- property: og:image:alt content: linux-logo
- name: twitter:card content: summary_large_image
- name: twitter:site content: @obu4alka
- name: twitter:creator content: @obu4alka
- name: twitter:title content: Obu4alka.ru
- name: twitter:description content: Статьи по настройке и оптимизации компьютера на ОС Windows и Linux. Обзоры программ, команд и скриптов. Статьи про информационную безопасность и IT-технологии.
- name: twitter:image content: https://obu4alka.ru/wp-content/uploads/2019/08/linux-1.jpg
- name: twitter:image:alt content: linux-logo
- name: generator content: Elementor 3.34.4; features: e_font_icon_svg, additional_custom_breakpoints; settings: css_print_method-external, google_font-enabled, font_display-swap
- name: msapplication-TileImage content: https://obu4alka.ru/wp-content/uploads/2019/04/favicon.ico
Internal Links
External Links
Whois Information
Whois Raw Data
domain: OBU4ALKA.RU
nserver: ns1.reg.ru.
nserver: ns2.reg.ru.
state: REGISTERED, DELEGATED, VERIFIED
person: Private Person
registrar: REGRU-RU
admin-contact: http://www.reg.ru/whois/admin_contact
created: 2018-04-27T15:40:13Z
paid-till: 2026-04-27T15:40:13Z
free-date: 2026-05-28
source: TCI
Last updated on 2026-03-17T01:03:01Z
Robots.txt
User-agent: *
Disallow: /Install
Disallow: /bad_bot/
Disallow: /cgi-bin
Disallow: /?
Disallow: /wp-
Disallow: /wp-json
Disallow: /wp/
Disallow: /wp-admin/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Disallow: *utm*=
Disallow: *openstat=
Allow: */uploads
User-agent: GoogleBot
Disallow: /Install
Disallow: /bad_bot/
Disallow: /cgi-bin
Disallow: /?
Disallow: /wp-
Disallow: /wp-json
Disallow: /wp/
Disallow: /wp-admin/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Disallow: *utm*=
Disallow: *openstat=
Allow: */uploads
Allow: /*/*.js
Allow: /*/*.css
Allow: /wp-*.png
Allow: /wp-*.jpg
Allow: /wp-*.jpeg
Allow: /wp-*.gif
Allow: /wp-admin/admin-ajax.php
User-agent: Yandex
Disallow: /Install
Disallow: /bad_bot/
Disallow: /cgi-bin
Disallow: /?
Disallow: /wp-
Disallow: /wp-json
Disallow: /wp/
Disallow: /wp-admin/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/*
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Disallow: /tag/*
Disallow: /category/*
Allow: */uploads
Allow: /*/*.js
Allow: /*/*.css
Allow: /wp-*.png
Allow: /wp-*.jpg
Allow: /wp-*.jpeg
Allow: /wp-*.gif
Allow: /wp-admin/admin-ajax.php
Clean-Param: utm_source&utm_medium&utm_campaign
Clean-Param: openstat
Clean-Param: related_post_from
Clean-Param: search /
Clean-Param: tag /
Clean-Param: category /
Sitemap: https://obu4alka.ru/sitemap.xml
Host: https://obu4alka.ru
SEO Audit
Technical SEO
On-Page SEO
Content and UX
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 3 | /settings-network-ub... | ||
| 6 | /speedtest-diskov-v-... | ||
| 6 | /settings-network-ub... | ||
| 8 | /bash-usr-bin-oshibk... | ||
| 11 | /originalnyj-source-... | ||
| 15 | /clear-cache-buffer-... | ||
| 17 | /error-1045-28000-ac... | ||
| 19 | /ustanovka-printera-... | ||
| 21 | /speedtest-diskov-v-... | ||
| 21 | /speedtest-diskov-v-... |