I work directly on live Linux server incidents — from compromised systems and malware infections to high CPU usage, service crashes, and production outages. My focus is fast diagnosis, controlled recovery, and long-term hardening.
DevOps
There's a persistent fear around git rebase -i that outlives most developers' junior years, and it's misplaced. Akrm al-Hakimi makes the case that the command is far less dangerous than its reputation, and he's right: interactive rebase is a text file you
Threat Intel
Two path-traversal bugs in Kubernetes storage drivers were patched this spring, and taken as isolated CVEs they're minor: medium severity, privileged access required, fixed. Taken as a pattern, they're a warning about how modern infrastructure fails. SentinelLabs' Shaul Ben Hai found both, and the
Self-Hosting
The oldest rule in self-hosting is "host anything except your email." The horror stories are real: blocklists, silent delivery failures, and above all spam, the flood that historically made a self-hosted inbox unusable and pushed everyone to Gmail. Christian Haschek makes the case in a recent
System Design
One transposed letter in my.cnf and a healthy database refuses to start. innodb_buffer_pool_size becomes innodb_buffer_pool_sze, you restart, and the service is down, always during an automated deploy or an upgrade or right as you were leaving, never during a calm maintenance window. MariaDB
Cloud Security
A publicly exposed serverless function with no authentication is a normal, often deliberate architecture choice. Plenty of workloads have to be reachable by anonymous users. The trouble is what sits behind it: custom code, third-party packages, and an identity attached to the runtime. Get code execution in that container
Linux
Logs that never leave the machine that made them are logs you lose exactly when you need them. A failed disk, an accidental rm, or an attacker with root, and the records you were about to review are gone. Past a handful of servers it's also just impractical:
DevSecOps
Knowing what an SBOM is gets you to the starting line. What separates a working SBOM program from a compliance checkbox is the operational detail: which fields actually have to be there, how the identifiers work, why VEX exists, where in the pipeline you generate, and which deadlines are already
DevSecOps
The agency that tells the rest of the US government how to secure its systems left administrative AWS GovCloud keys and dozens of plaintext internal passwords sitting in a public GitHub repository for roughly six months. As reported by KrebsOnSecurity, which broke the story after being contacted by the researcher
DevSecOps
During an incident, your logs are the one thing you need to trust, and attackers know it. The first move after getting root is almost always to wipe the evidence. If you're not actively protecting your logs, you're blind the moment a breach happens, and there&
DevSecOps
There's a gap between what Linux logs by default and what you need to actually detect a compromise. Most environments have logging switched on, which feels like coverage right up until you're pulling logs after an incident and finding fragments: a login here, a process there,
Threat Intel
WordPress shipped 6.9.5 and 7.0.2 on July 17 and enabled forced auto-updates, closing a pre-authentication remote code execution in core. Not a plugin. A default install with zero plugins is exploitable by an anonymous HTTP request, no login, no user interaction, no preconditions. The
Threat Intel
Hours after Microsoft's July 2026 Patch Tuesday shipped fixes for over 600 CVEs, the researcher known as Nightmare Eclipse (also Chaotic Eclipse) dropped another one that wasn't in it. LegacyHive is a local privilege escalation in the Windows User Profile Service (ProfSvc) that works on fully