Security Goodies - Pot of gold? or fool's gold? (rxfn on GitHub)

[ericmarceau]

I stumbled across this today.

Anyone have any experience/opinion regarding the quality or practicality of what is offered

• for Desktop?
  (my sphere of interest)

• for Servers?
  (for sake of awareness)

My primary interest is this one (instead of re-writing my own shell code for various firewall functions/features),

• GitHub - rfxn/advanced-policy-firewall: iptables/netfilter firewall for Linux servers with stateful filtering, trust system, ipset block lists, SYN flood protection, VNET per-IP policies, and Docker support · GitHub

but this other one is very interesting:

• GitHub - rfxn/linux-malware-detect: Multi-engine Linux malware scanner with five detection stages (MD5, HEX pattern, YARA, ClamAV, statistical), real-time inotify monitoring, quarantine, and multi-channel alerting · GitHub

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Others more interested in a server-based environment might find the following very interesting:

• GitHub - rfxn/brute-force-detection: Brute force detection with exponential-decay pressure scoring, 57 service rules, 8 firewall backends, GeoIP enrichment, and multi-channel alerting · GitHub

• GitHub - rfxn/blacklight: The future is Mythos-class agents that take vuln-to-exploits from days to hours, Linux defense is still stuck at human speed. Blacklight is the agentic counter-measure: a skills-native Managed Agent that directs OSS defensive primitives at the speed of the attack. GPL v2. (Opus 4.7 hackathon) · GitHub

• GitHub - rfxn/rdf: Governance-driven AI development framework -- convention enforcement, quality gates, and domain expertise for Claude Code, Gemini CLI, and Codex · GitHub

• GitHub - rfxn/rfxn-defense: Responsive defense layer for Linux; ships kernel-LPE mitigations as 0days land. Coverage: Copy Fail family (cf1, cf2, Dirty Frag, Fragnesia, PinTheft, DirtyDecrypt) + FD-theft (ssh-keysign-pwn). EL7/8/9/10. · GitHub

[Brian_Masinick]

@ericmarceau I do not have any direct experience with any of these efforts, but if these are defense based they are likely to be solid, though I have to wonder if they also are huge data tracking engines that report stuff to various security agencies? Without knowing a single detail, I suspect that some (or all) of these initiatives have some kind of “fortress” architectures, but they may also report back to the “home base”!

[mr_mcbride]

My basic start for security is crowdsec on the router (or on every server) & fail2ban on every Linux box.

Although, an argument can be made not to run fail2ban on any host that has services exposed to the internet.