Firewall

How to Install Debian 10 Buster on a Server — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Debian 10 Buster on a Server

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install debian 10 buster on a server 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 and […]

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How to Configure GEOM Mirroring on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure GEOM Mirroring on FreeBSD 12

Introduction Deploying configure geom mirroring on freebsd 12 on a FreeBSD 12 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 Protect an Nginx Server with Fail2Ban on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Protect an Nginx Server with Fail2Ban on Ubuntu 20.04

In this guide, you will learn how to install `fail2ban` on a Ubuntu 20.04 server and configure it to monitor your Nginx logs for intrusion attempts. Fail2ban can significantly mitigate brute force attacks by creating rules that automatically alter your firewall configuration to ban specific IPs after a certain number of unsuccessful login attempts. This will allow your server to harden itself against these access attempts without intervention from you.

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How to Set Up WireGuard VPN on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up WireGuard VPN on Debian 10

Introduction How to Set Up WireGuard VPN 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 10. […]

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How to Configure firewalld Zones on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure firewalld Zones on SLES 15

Introduction This tutorial covers How to Configure firewalld Zones on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

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Common Problems 112513

Windows Server 2019 — Static routes lost after reboot due to persistent store misconfiguration in Server 2019 — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 25 July 2020 Affected versions: Windows Server 2019 📖 ~2 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 […]

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Recommended Steps For New FreeBSD 12.0 Servers — step-by-step Linux tutorial on Progressive Robot

Recommended Steps For New FreeBSD 12.0 Servers

When setting up a new FreeBSD server, there are a number of optional steps you can take to get your server into a more production-friendly state. In this guide, we will go over some of the most common examples. We will cover how to create a firewall that denies most traffic, ensure that your server’s time zone accurately reflects its location, and set up NTP polling to keep the server’s time accurate. Finally, we will demonstrate how to add some extra swap space to your server.

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How to Configure auditd System Auditing on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure auditd System Auditing on Debian 10

Introduction Deploying configure auditd system auditing 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 Ensure Debian […]

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How to Use IBM Tivoli Access Manager on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use IBM Tivoli Access Manager on IBM AIX 7.1

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 use ibm tivoli access manager on ibm aix 7.1 […]

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How to Configure RACF Integration on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure RACF Integration on IBM AIX 7.1

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 racf integration on ibm aix 7.1 on IBM […]

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