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How to Install Ansible on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Ansible on FreeBSD 13

Introduction How to Install Ansible on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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How to Perform a System Security Audit with auditd on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Perform a System Security Audit with auditd on RHEL 7

How to Perform a System Security Audit with auditd on RHEL 7 Security auditing is a critical practice for any production RHEL 7 system, especially those subject to compliance frameworks such as PCI-DSS, HIPAA, or DISA STIG. The Linux Audit Framework, centered on the auditd daemon, provides kernel-level monitoring of system calls, file access, user […]

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How to Set Up PowerHA Geographic Mirroring on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up PowerHA Geographic Mirroring on IBM AIX 7.2

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 set up powerha geographic mirroring on ibm aix 7.2 […]

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How to Install PostgreSQL 16 on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install PostgreSQL 16 on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install postgresql 16 on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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How to Set Up Nginx with PHP-FPM on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Nginx with PHP-FPM on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up nginx with php-fpm 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 […]

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How to Install Prometheus on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Prometheus on FreeBSD 13

Introduction Deploying install prometheus on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

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How to Configure MySQL Primary-Replica Replication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure MySQL Primary-Replica Replication on RHEL 7

How to Configure MySQL Primary-Replica Replication on RHEL 7 MySQL replication allows data written to one server (the primary, formerly called master) to be automatically copied to one or more other servers (replicas, formerly called slaves). This is one of the most widely deployed MySQL high-availability techniques: it provides read-scale-out by offloading SELECT queries to […]

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How to Set Up Cron Jobs on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up Cron Jobs on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up cron jobs on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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How to Configure NTP Time Synchronization on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure NTP Time Synchronization on FreeBSD 13

Introduction This guide explains how to Configure NTP Time Synchronization on FreeBSD 13 on FreeBSD 13. 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 […]

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Debian 10 — krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 August 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-28196 CVE-2021-36222 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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