#Ubuntu

9 tutorials tagged with "Ubuntu"

CVE-2026-80521: Check the Kernel, Not Docker

CVE-2026-80521 is a host-kernel bug, CVSS 7.8, and Ubuntu has not shipped a fix for the vulnerable packages. Match the package name before you patch Docker.

docker

Ubuntu 26.10 Snapshot 4: Linux 7.2, and cp Is Finally Rust

Snapshot 4 ships Linux 7.2. Draft notes say uutils now covers cp, mv, and rm. Test it in a VM. Leave 26.04 LTS on GNU until backup scripts run.

linux

Fragnesia Is a Host Breakout. If Your GKE Nodes Are Ubuntu, Read the Bulletin

CVE-2026-46300 lets an unprivileged process inside a container reach root on the host. Google says Standard plus Ubuntu is in. COS, Autopilot, and GKE Sandbox are out. Patch versions are on GCP-2026-033.

docker

Ubuntu 24.04.5 Ships Linux 7.0. rc2 of 7.3 Is Already Loud

Canonical's fifth Noble point release puts Linux 7.0 on the install media. Torvalds called 7.3-rc2 unusually fat and joked about AI. Patch the LTS image you actually run. Do not confuse it with the mainline circus.

linux

Automating Linux Server Hardening with CIS Benchmarks: Stop Doing This Manually

The CIS benchmarks define over 200 security controls for a typical Linux server. Running through them manually takes hours and guarantees you'll miss something. Here's how to automate the entire process.

server-config

Nginx HTTP/3 with QUIC on Ubuntu 24.04: Complete Configuration Guide

Step-by-step guide to configuring Nginx with HTTP/3 and QUIC support on Ubuntu 24.04 LTS, including TLS 1.3, UDP listeners, and performance optimization.

server-config

Risk-Based Patch Management on Ubuntu Servers: A Practical Guide for 2026

Configure automated patch management with risk-based prioritization on Ubuntu 26.04 LTS. Align with CISA BOD 26-04 and KEV catalog best practices.

server-config

PostgreSQL Performance Tuning on Ubuntu: Configuration Parameters That Matter

A hands-on guide covering configuration, troubleshooting, and best practices for postgresql performance tuning on ubuntu - configuration parameters that matter.

server-config

Ubuntu 26.04 LTS Preview: What's New and Should You Upgrade?

Ubuntu 26.04 LTS 'Noble Numbat' preview covering new features, kernel updates, performance improvements, and upgrade recommendations for server administrators.

linux