crowdsec
Fail2Ban
Our great sponsors
crowdsec | Fail2Ban | |
---|---|---|
169 | 49 | |
7,746 | 10,366 | |
2.2% | 4.1% | |
9.6 | 8.8 | |
7 days ago | 21 days ago | |
Go | Python | |
MIT License | GNU General Public License v3.0 or later |
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.
crowdsec
- Disable notifications for one out of several machines
- 9. 为你的公网服务部署入侵检测
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Brute.Fail Watch brute force attacks in real time
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
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CrowdSec Engine 1.5 is officially here 🚀
Today we are pleased to announce the launch of CrowdSec Engine 1.5 - this is a huge milestone for the project and one that would not have been possible without the help of this community. You can read see the full change log over on GitHub here https://github.com/crowdsecurity/crowdsec/releases
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Crowdsec on OpenSUSE tumbleweed
wget https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz server:> tar xzvf crowdsec-release.tgz https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz server: > tar xzvf crowdsec-release.tgz server:> cd crowdsec-v* && sudo ./wizard.sh -i
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Did you have serious attacks on your exposed services before?
This tool crowdsec.net is really interesting to mitigate and enact defense systems for different scenarios.
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Feature Request: CrowdSec
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.
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What service can I use to ban users?
You should check out https://crowdsec.net. More advanced, uses crowdsources cti to block attacks even before they happen. Also both nginx and captcha is supported. Disclaimer: I am head of community. Visit /r/CrowdSec or our Discord at https://discord.gg/crowdsec if you have questions :-)
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Hardening exposed WireGuard ports
Do I need something like crowdsec, or is WireGuard secure enough on its own?
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A 'leech-like' connection constantly established on my server
Before falling too much in love with Fail2Ban try taking a look at https://crowdsec.net. Similar functionality but way more advanced (but easier to configure). New project that leverages the power of the crowd and shares information of attacks among users so they help each other out protecting themselves.
Fail2Ban
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Looking for a way to remote in to K's of raspberry pi's...
now some things you need to think about: - cloud init - this will need to be secure so lock it down hard anything not needed an alternative OS to look at if you have the ability's is https://www.alpinelinux.org/ also as these devices are not that powerfull every extra agent / abstaction layer you add impacts performance need to look at low over head security https://www.crowdsec.net/ and https://github.com/fail2ban/fail2ban (if you call fail2ban security) - using certificates to authenticate ssh login
- Fail2Ban
- Fail2Ban – Daemon to ban hosts that cause multiple authentication errors
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I am (to be) a web designer, how to ensure security on a vps?
See https://github.com/fail2ban/fail2ban for beginner's guide, basically you set it up to monitor logfiles and it would act accordingly (plenty of built-in config to handle various daemons so you don't have to write yourself).
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Home Lab Setup Recommendations
- Nginx & crowdsec/fail2ban if you are exposing your parts (services) to the public ( https://hub.docker.com/r/baudneo/nginx-proxy-manager, https://www.crowdsec.net, https://www.fail2ban.org )
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fail2ban not notifying Cloudflare
— In /etc/fail2ban/action.d/cloudflare.conf I copied the file from https://github.com/fail2ban/fail2ban/blob/master/config/action.d/cloudflare.confand added my ‘cftoken’ and ‘cfuser’ on the bottom
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Firewall rules beyond "deny incoming, enable only the ports that you need"
https://github.com/fail2ban/fail2ban is a mature, easy to set up way to have some dynamic firewall rules that respond to attacks. There are more sophisticated options, but they are probably not worth the return on time investment for you.
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Comments/Suggestions on security-auditing different services
You can create your own regexes for custom services: https://github.com/fail2ban/fail2ban/wiki/Developing-Regex-in-Fail2ban
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Fail2Ban Limitation
Others seem to be (or were) experiencing this too: https://github.com/fail2ban/fail2ban/issues/3100
What are some alternatives?
Wazuh - Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.
Suricata - Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
pfSense - Main repository for pfSense
Snort - Snort++
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.
Denyhosts - Automated host blocking from SSH brute force attacks
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.
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
docker-pi-hole - Pi-hole in a docker container