Linux
A Linux process is an instance of a running program. The kernel manages every process that starts on your system, allocating CPU time, memory, and file descriptors. Understanding process management is essential for debugging performance issues, terminating rogue processes, and understanding system behavior. Think of processes as tasks in a
Linux
Alpine's Quiet Experiment Signals Larger Shift Alpine Linux, the Linux distribution that has spent years as the poster child for "you don't need systemd," is now experimenting with systemd compatibility. This isn't a headline-grabbing announcement. It's more of a
Linux
Keeping the Linux kernel patched is one of the most important operational security responsibilities for any infrastructure team. Unpatched kernels expose systems to known vulnerabilities that can lead to: * Remote code execution (RCE) * Privilege escalation * Denial of service (DoS) * Data breaches * Unauthorized access For modern hosting platforms, web servers, Kubernetes
Linux
When a Proxmox VE cluster loses quorum, /etc/pve flips to read-only. You can't start, stop, or migrate VMs. You can't edit configs. The cluster filesystem is a quorum gate, and without majority you don't get to write to it. Most quorum-loss
Linux
What You Need to Know Ubuntu 26.04 LTS ("Resolute Raccoon") dropped April 23, 2026. It's the latest long-term support release—15 years of support total (5 years standard, 10 more with Ubuntu Pro). If you're running 24.04 LTS, you'll
Linux
Putting HTTP Basic Auth in front of WordPress admin trips up most people for two reasons: WordPress's rewrite rules eat any wp-login.php protection placed in the wrong spot, and blocking /wp-admin/ wholesale kills admin-ajax.php — breaking WooCommerce, Elementor, heartbeat API, and most plugin AJAX.
Linux
Load average is one of the most-cited and least-useful metrics on a Linux box. It conflates running and uninterruptible processes, smooths over 1/5/15-minute windows, and tells you nothing about what the system is waiting on. A load of 8 on a 16-core box could
Linux
QEMU 11.0 arrived after a four-release candidate cycle with significant architecture drops, improved VM migration, and expanded CPU/architecture support. The headline: 32-bit host support is gone, and several deprecated machine types have been removed. If you're running QEMU on legacy 32-bit hardware or
Linux
Canonical released Ubuntu 26.04 LTS (Resolute Raccoon) as the latest long-term support release. Shipping with Linux 7.0, APT 3.2's native rollback features, Wayland-only GNOME 50, and significant server component upgrades, this release targets systems wanting the latest technologies with 5–15 years of
Linux
With nginx's recent disclosure of multiple CVEs in the 1.27.x–1.30.x line (HTTP/2 request injection, buffer overflows in rewrite/SCGI/uWSGI/charset modules, HTTP/3 address spoofing, and a use-after-free in OCSP resolver), a lot of admins are stuck on Ubuntu&
Linux
A misconfigured /etc/network/interfaces on a remote Proxmox host means console-only recovery. Most of these gotchas don't surface during normal operation — they surface during dist-upgrade, after a reboot, or the first time a VM tries to migrate. Here's the list, ordered roughly by
Linux
Hetzner's dedicated server networking trips up everyone the first time. The gateway isn't in the same subnet as the IPs you're assigning. Additional IPs are routed individually as /32s, not as a contiguous on-link subnet. The upstream switch MAC-filters by default, so