🟠 High ⏱ 15–60 min Last verified: 15 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2002-0391 CVE-2002-1235 CVE-2002-2443 CVE-2003-0028 CVE-2003-0058 CVE-2003-0059 CVE-2003-0060 CVE-2003-0072 +12 more Upstream summary: Integer overflow in xdr_array function in RPC servers for operating systems that use libc, glibc, or […]
🟡 Medium ⏱ 5–30 min Last verified: 14 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
CodeIgniter 4 (CI4) is a lightweight PHP framework with a small footprint, excellent documentation, and a gentle learning curve. It is ideal for developers who want a fast, simple MVC framework without heavy dependencies. This guide deploys CodeIgniter 4 on Ubuntu 26.04 LTS with Nginx and PHP 8.4. Tested and valid on: Ubuntu 26.04 LTS […]
iptables is the traditional Linux packet filtering framework. While UFW provides a simplified interface, understanding iptables directly is valuable for advanced firewall rules, NAT, port forwarding, and Docker networking. This guide configures iptables on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Basic networking […]
🟠 High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2025-19610 Related CVEs: CVE-2025-11561 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Introduction How to Install Loki for Log Aggregation on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying use cri-o runtime both straightforward and auditable. This tutorial covers the complete procedure for how to Use cri-o Runtime on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: […]
Prometheus is an open-source metrics collection and alerting system, while Grafana provides beautiful dashboards for visualising those metrics. Together they form the most popular open-source monitoring stack. This guide installs both on Ubuntu 26.04 LTS with Nginx and SSL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx installed A user […]
k3s is a certified lightweight Kubernetes distribution by Rancher. With a single binary under 100 MB, k3s is perfect for edge computing, IoT, CI environments, and resource-constrained servers. It bundles containerd, Flannel networking, and SQLite (or etcd) in one package. This guide installs k3s on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install kibana both straightforward and auditable. This tutorial covers the complete procedure for how to Install Kibana on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: a registered […]
