Introduction Deploying configure static ip on debian 11 on a Debian 11 Bullseye 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 You will need […]
How to Set Up Tripwire for File Integrity Monitoring on RHEL 7 File Integrity Monitoring (FIM) is the practice of detecting unauthorised changes to critical system files, configuration files, and binaries. When an attacker compromises a system, they often modify files to install backdoors, alter logging behaviour, or escalate privileges. Tripwire creates a cryptographic baseline […]
🟡 Medium ⏱ 5–30 min Last verified: 16 March 2022 Affected versions: Debian 11 📖 ~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 & […]
Introduction Setting up set up two-factor authentication with google authenticator on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Two-Factor Authentication with Google Authenticator on CentOS Stream 9, with all the commands you need, […]
Introduction This guide explains how to Configure iptables Packet Filtering on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up datadog agent on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Datadog Agent on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install and configure fail2ban on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]
Introduction Deploying configure openscap security compliance on debian 11 on a Debian 11 Bullseye 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 […]
PXE (Preboot eXecution Environment) boot lets you install an operating system over the network without a physical USB drive or DVD. On RHEL 8 this capability is built from three cooperating services: a DHCP server that hands out IP addresses and points new clients to the boot server, a TFTP server that delivers the initial […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure ssh key authentication on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure SSH Key Authentication on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
