Introduction Deploying configure apache2 virtual hosts on debian 9 on a Debian 9 Stretch 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 Ensure Debian […]
🟡 Medium ⏱ 5–30 min Last verified: 21 December 2019 📖 ~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 & Cross-Refs References & Further […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure micro-partitioning on ibm aix 7.1 on IBM AIX […]
How to Install and Configure FreeIPA on RHEL 7 FreeIPA is an integrated identity and authentication solution that combines LDAP (via 389 Directory Server), Kerberos, DNS, a certificate authority (Dogtag PKI), and a web-based management interface into a single coherent platform. It is Red Hat’s upstream open-source project that underpins Red Hat Identity Management (IdM), […]
How to Configure Fail2Ban to Protect SSH on RHEL 7 Even with SSH key-based authentication enabled, your server’s port 22 (or whatever port SSH is listening on) is constantly targeted by automated bots scanning the internet for open SSH services. These bots attempt thousands of login combinations per hour. While they cannot succeed against key-only […]
pgAdmin 4 is the official open-source administration and development platform for PostgreSQL, providing a rich web interface for managing databases, running queries, monitoring activity, and visualizing schemas. On RHEL 8, the recommended installation path is the official PostgreSQL Global Development Group (PGDG) repository, which ships pgAdmin 4 as a dedicated web application package with a […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up ibm installation manager on ibm aix 7.1 […]
Introduction This guide explains how to Configure Postfix Mail Server 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 […]
Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure dhcp server on ibm aix 7.2 on IBM […]
How to Set Up Windows Server 2019 Network File System Network File System (NFS) on Windows Server 2019 enables interoperability between Windows and Unix/Linux systems by providing NFS server and client roles. The Server for NFS role allows Windows Server 2019 to export shared directories that Linux, macOS, and other Unix-based systems can mount natively. […]
