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Building SystemGuard: Why I'm Writing an Open-Source CrowdStrike Alternative in Rust

DEV Community·Khalid Khan·19 days ago
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I manage infrastructure for clients across Pakistan. Last month, a freelancer friend got a $1,400 bill from CrowdStrike for 40 Linux servers. That's more than his monthly revenue. Enterprise EDR is broken for the rest of the world. So I'm building an alternative. SystemGuard is a lightweight, self-hosted HIDS I'm open-sourcing. It's not another wrapper around OSSEC — it's built from the kernel up with eBPF and Rust. GitHub: https://github.com/systemguard-io/systemguard The Problem Nobody Talks About Western security tools assume: You can afford $35/host/month You want to send all your telemetry to US clouds You have a SOC team to tune 10,000 alerts In Karachi, Lahore, and Islamabad, we run 5-100 servers on tight margins. We need: Real-time detection (<100ms) Self-hosted (data sovereignty) <2% CPU overhead Free OSSEC hasn't had a meaningful commit since 2019. Wazuh is great but requires Elasticsearch cluster (overkill for 10 servers). Why Rust, Not Go? I prototyped in Go first.…

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