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Fedora 43 Apptainer Important DoS Fix CVE-2026-27145 FEDORA-2026-f8ab642466
Update to upstream 1.5.2. Also fixes CVE-2026-27145 because golang was new enough.
Fedora 43 cpp-httplib Important DoS Fix 2026-1d4bd0354a
Update to 0.48.0 (rhbz#2481109) Security fixes Complete the IP-host certificate identity fix from v0.47.0 for the Mbed TLS and wolfSSL backends. An IP-literal host is now authenticated only via a matching iPAddress SAN, never via the certificate's Co...
Fedora 43 MySQL 8.4 Critical DoS Threat Vulnerability 2026-280245e2ea
MySQL 8.4.10 Release notes: https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-10.html Upstream changelog: https://dev.mysql.com/doc/relnotes/mysql/8.4/en/
Fedora 44 7zip Important Bug Fix Advisory 2026-948b74882b
7-zip 26.02 Some bugs and vulnerabilities were fixed.
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Monitoring East-West Traffic with Suricata: Finding Threats Inside Your Network
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HOWTOs
How to Build Behavioral Detections with eBPF on Linux
Building effective behavioral detections starts with understanding how processes behave at runtime, rather than simply collecting more logs. eBPF gives Linux security teams the visibility needed to correlate those behaviors into meaningful detections...
How to Read Linux Audit Logs During an Intrusion
When a security alert fires, the panic often sets in before the analysis. Many administrators instinctively reach for /var/log/auth.log or journalctl, but those logs tell only a partial story. They document successful logins and authentication attemp...
SELinux Troubleshooting: What to Check Before You Disable SELinux
SELinux troubleshooting is a necessary skill for any system administrator. When a service fails despite correct file permissions and ownership, the immediate instinct is often to disable SELinux to confirm if the security policy is the bottleneck. Wh...
How to Investigate High System Load During a Security Incident
When a production server spikes at 99% CPU or the disk starts grinding, the knee-jerk reaction is usually to blame a bad code push or a runaway backup job. But if you’ve spent enough time in security incident response, you know that "performance issu...
How to Find and Secure Exposed Services on Linux
Open ports have a way of accumulating over time. A test environment gets deployed and never removed. An administrative interface is exposed for troubleshooting and left in place. A database that was supposed to listen internally ends up reachable fro...
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