Telegram RegisterThe public register of Telegram
Telegram profile photo for DevOps by REBRAIN

Channel

DevOps by REBRAIN

@rebrain_devops

On this record: Growth · Engagement · What this channel posts · Reactions · Posts · Citations · Telegram's recommendations · Cite this entry

28,924subscribers

-61 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 10,000–31,623.

Register entry

Telegram ID-1001155329936
TypeChannel
Username@rebrain_devops
DescriptionОткрытые практикумы по DevOps, Linux, Golang, Networks, Security Мы на связи: [email protected] +7 (499) 116-34-68 https://rebrainme.com/ Зарегистрированы в РКН: https://knd.gov.ru/license?id=674db558d793bc0b0b8845ff&registryType=bloggersPermission
Created6 February 2019measured — cross-checked against a third-party dataset (ext.tg_channel)
First recorded6 August 2026
Last confirmed live21 August 2026
Measurements held14
Confirmed unchanged1 time, most recently 21 August 2026
On Telegramt.me/rebrain_devops

Growth

28,92428,98528,954.56 August 2026 — 28,985 subscribers7 August 2026 — 28,984 subscribers8 August 2026 — 28,975 subscribers9 August 2026 — 28,974 subscribers11 August 2026 — 28,969 subscribers12 August 2026 — 28,968 subscribers14 August 2026 — 28,961 subscribers15 August 2026 — 28,955 subscribers16 August 2026 — 28,954 subscribers17 August 2026 — 28,955 subscribers18 August 2026 — 28,944 subscribers19 August 2026 — 28,939 subscribers20 August 2026 — 28,930 subscribers21 August 2026 — 28,924 subscribers6 August 202621 August 2026
14 measurements spanning 15 days, net -61. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 28,915–28,994 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
21 Aug 2026, 20:0528,924-6
20 Aug 2026, 20:0428,930-9
19 Aug 2026, 21:2128,939-5
18 Aug 2026, 18:4228,944-11
17 Aug 2026, 20:4428,955+1
16 Aug 2026, 17:5728,954-1
15 Aug 2026, 06:4428,955-6
14 Aug 2026, 00:2628,961-7
12 Aug 2026, 19:4328,968-1
11 Aug 2026, 16:5328,969-5
9 Aug 2026, 16:0228,974-1
8 Aug 2026, 13:3828,975-9
7 Aug 2026, 12:3828,984-1
6 Aug 2026, 20:3228,985first reading

Engagement

37 posts held, back to 22 July 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 39 pagesof Telegram’s post history, 20 posts per page.

ERR · 30 days
11.7%
avg views ÷ 28,924 subscribers
Avg views / post
3,380
34 posts measured
Reaction rate
0.413%
reactions ÷ views · ER floor
Posts in window
35
of 37 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.

What these figures were computed from
WindowRolling 30 days · latest post in window 21 August 2026
Posts held37 (22 July 202621 August 2026)
Views total114,920
Reactions total475
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken22 Aug 2026, 18:17 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
507
Videos
14
Links
1,070

Lifetime counters from Telegram’s own channel header, read 22 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.

Video runtime
9m 54s
Average length
9m 54s

Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no mark.

Reaction mix

505 reactions across 36 posts, in 7 distinct kinds. The most used accounts for 41.6% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
🔥21041.6%
👍17935.4%
6613.1%
👎183.56%
💯173.37%
👏91.78%
😁61.19%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 36 of the 37 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 505reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 37 most recent posts we hold, published 22 July 2026 to 21 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

21 Aug 2026, 12:04 UTC≈2,280 views11 reactionsread 22 August 2026

Уволившийся сотрудник два месяца оставался в SSH-доступе на восьми серверах, потому что его аккаунт нигде не был заведён централизованно, и снести его нужно было руками в восьми местах Так живёт инфраструктура без единого каталога доступа: пользователей заводят вручную на каждой машине, рутину закрывают одноразовыми Bash-скриптами, которые никто не оформляет в Ansible-роль, а когда человек уходит из команды, его дос

💯82👍1

20 Aug 2026, 11:56 UTC≈2,300 views12 reactionsread 22 August 2026
Photo

Топ-5 болей при работе с Docker Собрали то, с чем чаще всего сталкиваются DevOps-инженеры, сисадмины и бэкенд-разработчики, когда переносят Docker в прод. Если работаешь с контейнерами больше пары месяцев, минимум две боли из списка точно узнаешь. 1. Образы весят гигабайты. Диски на серверах забиваются, а деплой тянется по несколько минут просто на скачивание слоёв. 2. Контейнер падает при старте, а логи пустые. Пр

🔥6👍3😁3

19 Aug 2026, 13:56 UTC≈2,930 views8 reactionsread 22 August 2026

📍 Всем привет! По техническим причинам завтрашний вебинар «Загруженность сервера 100% по CPU. Кто виноват и что делать?» переносится на четверг, 26 августа. Ждём вас в 20:00 МСК 🤝

💯6👏2

18 Aug 2026, 11:32 UTC≈3,570 views19 reactionsread 22 August 2026

Обновляем версии курсов Мы регулярно обновляем курсы вслед за технологиями и бесплатно открываем новые версии всем, у кого курс уже куплен. 1 сентября заканчивается поддержка старых версий: 🟢Kafka 🟢RabbitMQ 🟢Terraform 🟢HashiCorp Vault 🟢Ceph 🟢HAProxy 🟢Grafana 1 и 2 🟢PostgreSQL 1 и 2 🟢Kubernetes 1 и 2 🟢Logs 1 и 2 🟢Linux Advanced После 1 сентября практика в этих версиях будет закрыта. При этом перейти на новую верс

🔥12👍61

17 Aug 2026, 12:40 UTC≈3,350 views8 reactionsread 22 August 2026
Photo

Сервисы регулярно падают в продакшене по OOM, а локализовать утечку памяти в рантайме не получается. Знакомая ситуация? Чаще всего дело в инструментах: без pprof и трассировки планировщика утечка горутин или неоптимальные аллокации остаются невидимыми, пока сервис не упадёт в третий раз за неделю. Мы сделали практикум Golang: Тестирование и качество кода, чтобы инженеры умели профилировать Go-приложения в рантайме,

👍42🔥2

16 Aug 2026, 08:03 UTC≈2,930 views85 reactionsread 22 August 2026

☕️ IT-сводка нескучных новостей за последние два месяца: хакерские атаки, украденные биткоины, Linux-утилиты 🟢Аппаратный кошелёк с дырой увели на 70 миллионов долларов за 41 минуту 1 августа уязвимость в аппаратном кошельке Coldcard связали с кражей биткоинов на 70 миллионов долларов, проведённой за 41 минуту. Железо, которое покупают именно ради того, чтобы ключи никогда не покидали устройство, оказалось не абсолю

🔥63👍173👏2

15 Aug 2026, 07:40 UTC≈2,650 views3 reactionsread 22 August 2026

🟡 Анонс открытых практикумов на следующую неделю 1️⃣ Suricata. Режим предотвращения вторжений (IPS). Часть 2 ↘ Регистрация Время проведения: 18 августа 2026, вторник, 19:00 по МСК Программа практикума: 🟢Suricata: режимы работы IPS 🟢Работа с сигнатурами 🟢Настройка режима NFQUEUE и интеграция IPS с межсетевым экраном Кто ведёт? Андрей Шабалин — Тренер Cisco / Huawei, инструктор академии Eltex и Астра-Университета -

👍3

15 Aug 2026, 07:04 UTC≈2,400 views8 reactionsread 22 August 2026

🎯 Атака на Active Directory: Обнаружение и защита от Pass-the-Hash (PtH) В логах светится событие 4624 (успешный вход), но за ним стоит NTLM-хэш, дампнутый из памяти lsass.exe через Mimikatz. При Pass-the-Hash злоумышленнику не нужен сам пароль: NTLM-протоколу для проверки подлинности достаточно валидного хэша. С ним атака легко перемещается по сети (*Lateral Movement*). 🔍 Как обнаружить Pass-the-Hash 1️⃣ Аномали

🔥6👍2

14 Aug 2026, 13:05 UTC≈2,650 views11 reactionsread 22 August 2026
Photo

🔥 Открыли демодоступ к новым практикумам июля: Keycloak, Linux Performance & HighLoad Fundamentals, Bash, BlueTeam Заходите на платформу, активируйте доступ, начинайте проходить и выполнять задания. 🟢 Keycloak Настроите единый вход и управление доступом для нескольких сервисов. 🟢 Linux Performance & HighLoad Fundamentals Разберётесь, как находить и устранять узкие места в производительности серверов под нагрузкой.

🔥74

13 Aug 2026, 12:53 UTC≈3,010 views7 reactionsread 22 August 2026
Photo

Load Testing & Benchmarking: как рассчитать реальный предел нагрузки системы и найти её узкое место Профиль нагрузки часто собирают на глаз, без опоры на логи и реальное поведение пользователей: тест проходит, а система всё равно не выдерживает пиковую нагрузку на проде. Мы сделали практикум Load Testing & Benchmarking, чтобы инженеры могли точно рассчитать, сколько нагрузки выдержит система, находить её узкие мест

5👏1🔥1

12 Aug 2026, 12:53 UTC≈3,560 views9 reactionsread 22 August 2026
Video

В понедельник прошло первое занятие интенсива по безопасности ОС, делимся небольшим фрагментом 👀 Костя Зубченко рассказывает про сервер БД и сервер приложений на CentOS 7. Объясняет базовую модель безопасности ОС: DAC/MAC в Linux и Securable Objects в Windows. Дальше больше практики, разбор дефолтные уязвимости и харденинг по CIS Benchmarks на реальном стенде🔥 Присоединиться к интенсиву можно и сейчас, запись перв

🔥8👍1

11 Aug 2026, 11:33 UTC≈3,940 views7 reactionsread 22 August 2026
Photo

OpenSearch: полный набор функций Elastic без платной подписки Elastic изменила лицензионную политику, и компании, которые держали логи на его стеке, оказались перед выбором: платить по новым правилам или переезжать. OpenSearch стал тем самым переездом: форк с лицензией Apache 2.0, где TLS, RBAC и управление жизненным циклом индексов идут из коробки, а не продаются отдельно. Мы собрали практикум по OpenSearch, чтобы

🔥51👍1

Showing the 12 most recent of 37 posts we hold for @rebrain_devops. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Citation-graph rank

Citation-graph rank — 378,242 of 1,583,249entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.

Forward network

Republished by

Channels on the register that have forwarded this channel's posts into their own feed.

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Mentions

Named by 1 registered channel — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.

Named by

Channels on the register whose posts name this channel's handle.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Appears in Telegram’s recommendations for other channels

The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.

Selectel
@Selectel · 63,648
Telegram ranks this channel #7 of 96 here — alongside 95 others — read 21 August 2026

This channel appears in 1 seed channel's Telegram-generated recommendation list in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 21 August 2026 — this entry's latest reading, not the date you are reading this.

“DevOps by REBRAIN” (@rebrain_devops), 28,924 subscribers as measured 21 August 2026. Telegram Register, tgregister.com/channel/rebrain_devops.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.