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A comprehensive guide for securing Linux servers, covering SSH hardening, firewall configuration with UFW, and intrusion detection using tools like Fail2Ban and CrowdSec.
A report titled 'Dirty Frag' details a universal Linux Local Privilege Escalation (LPE) vulnerability that allows root access on major distributions by chaining two kernel bugs. The disclosure notes that due to a broken embargo, no patches currently exist for this critical security issue.
guardd is an open-source Linux endpoint detection tool that uses eBPF events and Isolation Forest to spot anomalous process/network behavior in 60-second windows, but struggles with browser-related false positives.