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crowdsecurity
crowdsec
Go2020–2026
crowdsecurity / crowdsec

crowdsec

Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

Web DevelopmentSystems & InfrastructureSecurity & PrivacyMobile & DesktopDevOps & CloudNetworking
Explore on GitHubRead Hacker News discussions
10Distinct people
12Mentions
0Explicit recommenders
15.6KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year12 dated mentions

Observed mentions: 2020-09-22 14:33:45 UTC to 2026-10-08 23:27:36 UTC.

012342020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 3 mentions; 2 submissions, 1 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 3 mentions; 2 submissions, 1 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20232024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 4 mentions; 2 submissions, 2 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC321
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC321
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC101
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC422
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

What Hacker News says

12 sources
justsomehuman·Oct 8, 2026
Not quite as cheap as $5 but I've been running at Hetzner CAX31 for a couple of years now and I run the following services / apps. Actual Budget - https://github.com/actualbudget/actual AirTrail - https://github.com/johanohly/AirTrail Beszel - https://github.com/henrygd/beszel Coder - https://github.com/coder/coder Crowdsec - https://github.com/crowdsecurity/crowdsec Dawarich - https://github.com/Freika/dawarich Dozzle - https://github.com/amir20/dozzle Forgejo - https://codeberg.org/forgejo/forgejo Forgejo runner - https://code.forgejo.org/forgejo/runner Grafana - https://github.com/grafana/grafana Immich - https://github.com/immich-app/immich Karakeeo - https://github.com/karakeep-app/karakeep KitchenOwl - https://github.com/tombursch/kitchen owl Loki - https://github.com/grafana/loki Matrix - Tuwunel (https://github.com/matrix-construc
Read the rest
t/tuwunel) and cinny (https://github.com/cinnyapp/cinny) memos - https://github.com/usememos/memos Nourish - https://github.com/norish-recipes/norish ntfy - https://github.com/binwiederhier/ntfy oauth2-proxy - https://github.com/oauth2-proxy/oauth2-proxy Outline - https://github.com/outline/outline Paperless-ngx - https://github.com/paperless-ngx/paperless-ngx Pingvin Share- https://github.com/stonith404/pingvin-share Pixelfed - https://github.com/pixelfed/pixelfed Pocket ID - https://github.com/pocket-id/pocket-id Reitti - https://github.com/dedicatedcode/reitti Signal CLI rest API - https://github.com/bbernhard/signal-cli-rest-api Slink - https://github.com/andrii-kryvoviaz/slink Ghost - personal music blog Traefik - https://github.com/traefik/traefik Umami - https://github.com/umami-software/umami Uptime Kuma - https://github.com/louislam/uptime-kuma Vikunja - https://github.com/go-vikunja/vikunja wg-easy - https://github.com/wg-easy/wg-easy ZeroByte - https://github.com/nicotsx/zerobyte I used to run a couple of Hugo blogs but I've ended up moving them to bunny.
In Ask HN: What do you run on a $5 VPS that's worth keeping online 24/7?
Philippe_H·Oct 19, 2020
Hi Guys, thanks for all your feedbacks. (I'm part of the CS team) I'll try to address some few questions. 1/ You don't have to communicate. If you don't, you get a modern, fast, decoupled fail2ban with many various remediations (instead of just drop) and observability. What you don't get though are the IPs spotted by the crowd and curated by us. You don't contribute, you don't get them, fair. If you contribute, only offending IP / timestamp / scenario triggered are sent back to us to establish what we call a consensus (to avoid false positives and poisoning) 2/ We are super vigilant and sensitive about privacy. We made the architecture and many other crucial points compatible with GDPR (EU Law framework regarding private data handling) 3/ IP sent: We could hash it, but it's very easy to reverse. Maybe have a public/private key encryption,
Read the rest
quite a good point, I'll tell the team, thx. 4/ You can contribute scenario in YAML or data source connectors in Grok. We are not hardcore for or against any language, but Go allows portability (we'll release Win & Macos binaries) and is container friendly, plus super fast, easy to read and scalable. Ever since we released, tons of proposal were made to port it to a 'real' language, sorry we are fine with that choice, no intent to change, no intent to convert anyone either ;) 5/ Herd immunity is what we want to create indeed. We tried to explain the combination of Behavior + Reputation by using an analogy with Waze. It worked but is less accurate. I prefer the one with Immune system. We are available for direct dialog on gitter. allow just some delays depending on your time zone, we are based in France, so CEST. (https://gitter.im/crowdsec-project/community) we answer in French & English. Try it, it's free, MIT licensed and stable: https://github.com/crowdsecurity/crowdsec Thanks, Philippe.
In Crowdsec: A Fail2Ban alternative written in Go

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