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Fail2Ban Alternatives
Similar projects and alternatives to Fail2Ban
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SaaSHub
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src
Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
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Nginx Proxy Manager
Docker container for managing Nginx proxy hosts with a simple, powerful interface
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terraform
Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.
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docker-swag
Nginx webserver and reverse proxy with php support and a built-in Certbot (Let's Encrypt) client. It also contains fail2ban for intrusion prevention.
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MeshCentral
A complete web-based remote monitoring and management web site. Once setup you can install agents and perform remote desktop session to devices on the local network or over the Internet.
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crowdsec
CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.
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thanos
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
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Suricata
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better Fail2Ban alternative or higher similarity.
Fail2Ban discussion
Fail2Ban reviews and mentions
Posts with mentions or reviews of Fail2Ban.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-06-29.
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UFW, fail2ban, and Banning Repeat Offenders
UFW blocks ports. fail2ban blocks behavior. Together they form your server's intrusion response layer — UFW narrows the attack surface, fail2ban watches the traffic that gets through and bans the IPs that misbehave.
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Fail2ban RCE
Relevant discussion: https://github.com/fail2ban/fail2ban/issues/4110
Looks like a slop report that somehow made its way into the CVE database.
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Fighting bots by implementing fast TCP fingerprinting with eBPF
something like https://github.com/renanqts/xdpdropper or cilium's host firewall or https://github.com/boylegu/TyrShield exist or https://github.com/ebpf-security/xdp-firewall today and implement ebpf filter based firewalling.
Of these there is a sample integration for XDPDropper to fail2ban that never got merged https://github.com/fail2ban/fail2ban/pull/3555/files -- I don't think anyone else has really worked on that junction of functionality yet.
There's also wazuh which seems to package ebpf tooling up with a ton of detection and management components, but its not a simple to deploy as fail2ban.
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Zero Trust, One Router: Hardening Your Home Lab Like a Cyber Fortress.
Fail2Ban: Stop brute-force attacks
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Forget IPs: using cryptography to verify bot and agent traffic
Wasn't that the argument against https, namely, that it was too costly to run [1]? I also run fail2ban [2] in my servers and I rarely even notice it's there.
I'm not saying you should sit down with the iptables manual and start going through the logs, but I can see the idea taking off if all it takes is (say) one apt-get and two config lines.
[1] https://stackoverflow.com/questions/1035283/will-it-ever-be-...
[2] https://github.com/fail2ban/fail2ban
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DigitalOcean blocks SMTP ports 465 and 587 since last month
Not a whole lot of a source to share, sorry.
Whenever registering/subscribing to some provider, I always use a new,unique email address. If/when that provider gets their user database leaked, after some time, spam starts rushing in. At that point, I change my email address in provider's records, and old one is moved to "spamtrap" alias on my server. Over the years, quite a few has accumulated - linkedin, yahoo, you name it...
Fail2ban [0] parses mail server logs, and I have a rule there, where source IP address of anything incoming to spamtrap, is looked up in whois and logged. Then, manual awk/grep/sort contraption is run periodically.
DO's AS14061 used to be consistently in top-3 spam sources, occasionally taking #1 spot.
[0] http://www.fail2ban.org/
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One-Click Setup for SSH Login, Password Policy, IP Ban Configuration, and Custom Admin User Creation
IP Ban: Fail2ban
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How to install and configure Fail2ban for protecting SSH and Nginx
First you need to install Fail2ban. Before installation please see official installation guide on GitHub. Maybe something has been changed after this article published.
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The Ultimate NixOS Homelab Guide - Flakes, Modules and Fail2Ban w/ Cloudflare
Throughout this I'll be referring to these pages: https://nixos.wiki/wiki/Fail2ban https://github.com/dani-garcia/vaultwarden/wiki/Fail2Ban-Setup https://github.com/fail2ban/fail2ban/blob/master/config/action.d/cloudflare.conf
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OpenSSH introduces options to penalize undesirable behavior
Impatient of what exactly? fail2ban is battle tested for well over a decade. It is also an active project with regular updates: https://github.com/fail2ban/fail2ban/commits/master/
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A note from our sponsor - SaaSHub
www.saashub.com | 10 Jun 2026
Stats
Basic Fail2Ban repo stats
59
17,924
8.0
about 1 month ago
fail2ban/fail2ban is an open source project licensed under GNU General Public License v2.0 or later which is an OSI approved license.
The primary programming language of Fail2Ban is Python.
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