Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Self hosted security recommendations
2 projects | /r/selfhosted | 17 Apr 2023
I use their free plan so I can't tell about any other plan. In order to protect all your services, you just have to deploy Crowdsec once, give it access to the logs of all your existing services and set up the relevant bouncers (reverse proxy and probably Cloudflare). You must also give it the relevant collections from https://hub.crowdsec.net/ such as https://hub.crowdsec.net/author/crowdsecurity/collections/nextcloud
Can CrowdSec protect a mail server ?
2 projects | /r/CrowdSec | 11 Dec 2022
Postfix is supported in our list of collections. You should check https://hub.crowdsec.net2 projects | /r/CrowdSec | 11 Dec 2022
We don't have support for them yet, however, if you provide log samples and open an issue with the samples on https://github.com/crowdsecurity/hub. We can work on supporting them.
Crowdsec Acquis.yml help
2 projects | /r/selfhosted | 4 Oct 2022
You find the required contents of the acquis.yaml on the dedicated page of each collection on the hub.
Logging unauthorised attempts
2 projects | /r/WireGuard | 18 Jun 2022
I just submitted a PR for Wireguard support. Feel free to try it out. I haven't been able to test it much. And yes, it's my first PR :-)
Integrating Sysmon events with Crowdsec
2 projects | /r/CrowdSec | 16 May 2022
Your use case sounds cool. Unfortunately CrowdSec is not very mature on Windows (yet). That being said we have just written a parser for sysmon. It's very much WIP and needs testing. Also there's not any scenarios yet so CrowdSec can't detect anything there yet. That being said we would love to collaborate with you on creating them if you're willing to invest time in it too. A good place to do that would be via our Discord (invite link under the subreddit description) where I will be happy to set up a dedicated channel where you can have direct access to our devs.
An actual secure selfhosted Reverse Proxy with cool stats?
3 projects | /r/selfhosted | 19 Nov 2021
I would recommend looking at a tool like CrowdSec for that. You don't mention whether using traefik is a must or not but nginx is better supported (and traefik support is on it's way).
Brute.Fail Watch brute force attacks in real time
3 projects | news.ycombinator.com | 2 Jun 2023
Hey we actually built the second part as a product. Its a modern revamp of fail2ban combined with crowdsourcing aspect to deliver an up-to-date blocklist of active threats. You can check it out at https://github.com/crowdsecurity/crowdsec
Did you have serious attacks on your exposed services before?
2 projects | /r/selfhosted | 30 Apr 2023
This tool crowdsec.net is really interesting to mitigate and enact defense systems for different scenarios.
Feature Request: CrowdSec
3 projects | /r/firewalla | 25 Apr 2023
CrowdSec is licensed under MIT open source license, you can find a copy of the text here: “Copyright 2020, CrowdSec SAS (http://crowdsec.net), Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.” That’s all there is to it. Like in the case of Debian, you can do anything you want with it, for free, period. You just need to embed this license when you redistribute the product.
Hardening exposed WireGuard ports
3 projects | /r/selfhosted | 6 Nov 2022
Do I need something like crowdsec, or is WireGuard secure enough on its own?
Banning users for certain actions
3 projects | /r/flask | 8 Oct 2022
You could try out https://crowdsec.net. It’s an advanced FOSS framework for detecting a number of different attacks and not limited to just brute force attacks like Fail2Ban as /u/nonself suggests. The basic concept of CrowdSes is that it reads log, detects attacks, mitigates attacks (CrowdSec integrates directly into the Flask application) and shares information about those attacks with everyone else using CrowdSec. Disclaimer: I am head of community at CrowdSec so my opinions may be a little biased :-)
How to access Docker containers on home server from public IP?
6 projects | /r/selfhosted | 4 Oct 2022
You need to setup reverse proxy. nginx-proxy-manager, swag. There are also more options like caddy, haproxy etc... You can also setup a VPN and or a service like authelia, fail2ban, crowdsec to restrict access to your site.
Crosscompiling CrowdSec on amd64 (Ubuntu 22.04) to arm64 (FriendlyWRT / OpenWRT 22.04)?
2 projects | /r/CrowdSec | 24 Sep 2022
Release v1.4.1 · crowdsecurity/crowdsec (github.com)
Block traffic from every country except the USA? - Apache2/SSH
2 projects | /r/sysadmin | 15 Sep 2022
Not what you suggested but have you considered https://crowdsec.net? Not just a collaborative and more advanced version of Fail2Ban but in this case you want it because of the collaborative blocklist; we made an article showing that 92% of attacks was blocked in advanced by ip reputation before any attacks were performed. Disclaimer: I am head of community so I might be a bit biased. It’s still a cool FOSS project though :-)
Newbie help...docker, portainer, godaddy
6 projects | /r/selfhosted | 14 Sep 2022
You need to look into reverse proxy. Most common one is nginx-proxy-manager which has a nice GUI. There is also SWAG. Both can been configured to get free SSL certificates. For security: authelia, fail2ban, crowdsec. I also suggest to configure wireguard, wg-easy. If you have any questions, we are here. Welcome and good luck!
Large scale Internet SSH brute force attacks seem to have stopped here
10 projects | news.ycombinator.com | 29 Aug 2022
So in that way everybody using CrowdSec are helping each other out. More information at https://crowdsec.net.
What are some alternatives?
Fail2Ban - Daemon to ban hosts that cause multiple authentication errors
pfSense - Main repository for pfSense
Wazuh - Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.
ModSecurity - ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis. With over 10,000 deployments world-wide, ModSecurity is the most widely deployed WAF in existence.
Suricata - Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
docker-pi-hole - Pi-hole in a docker container
ansible-collection-hardening - This Ansible collection provides battle tested hardening for Linux, SSH, nginx, MySQL
Snort - Snort++
OSSEC - OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.
docker-fail2ban - Fail2ban Docker image
jellyfin-plugin-sso - This plugin allows users to sign in through an SSO provider (such as Google, Microsoft, or your own provider). This enables one-click signin.