Introduction How to Configure Rate Limiting in Nginx on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]
The journalctl command is the primary interface for querying and browsing logs collected by systemd-journald on RHEL 8. Unlike traditional syslog files, the systemd journal stores structured, binary log data that can be filtered by unit, priority, time range, PID, and more. Mastering journalctl allows administrators to diagnose service failures, track kernel events, and export […]
Introduction This guide explains how to Install Kibana on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the standard repositories […]
How to Install and Configure Consul for Service Discovery on RHEL 7 As applications grow beyond a single server, tracking where every service is running — and whether it is healthy — becomes a significant operational challenge. Consul, developed by HashiCorp, is a distributed, highly available service mesh and service discovery tool that solves this […]
Introduction This guide explains how to Audit Security with Lynis on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]
Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure gitea self-hosted git service on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully […]
Introduction Deploying set up mariadb replication on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]
🟠 High ⏱ 5–30 min Last verified: 10 June 2020 Affected versions: 14.04 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 & […]
MariaDB Galera Cluster is a synchronous multi-primary replication solution that allows writes to be accepted by any node in the cluster simultaneously. Unlike standard MySQL asynchronous replication, Galera ensures that a transaction is committed on all nodes before it is acknowledged to the application, eliminating replication lag and the risk of data loss during failover. […]
Introduction Deploying manage node.js versions with nvm on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]
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