Firewall

Common Problems 118089

Ubuntu 18.04 LTS Fail2ban Bans Legitimate Admin IPs

🟡 Medium   ⏱ 5–30 min  Last verified: 16 March 2020 Affected versions: 18.04 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 & […]

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How to Install and Configure Rclone on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Rclone on Debian 10

Introduction Deploying install and configure rclone 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 Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2

How to Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2 Internet Protocol Security (IPsec) provides authentication and encryption at the IP layer, ensuring that traffic between servers cannot be intercepted or tampered with even if an attacker has gained access to the network segment. On Windows Server 2012 R2, IPsec is configured through […]

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How to Set Up a LAMP Stack on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a LAMP Stack on RHEL 8

A LAMP stack — Linux, Apache, MariaDB, and PHP — is one of the most widely deployed web server configurations in enterprise environments. RHEL 8 ships with the tools needed to install and configure each component using dnf and its module system. This tutorial walks you through installing and securing a fully functional LAMP stack […]

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How to Set Up a Private Docker Registry on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a Private Docker Registry on Debian 9

Introduction This guide explains how to Set Up a Private Docker Registry 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 […]

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How to Configure WireGuard on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure WireGuard 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 configure wireguard on ibm aix 7.2 on IBM AIX […]

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How to Set Up LDAP Client on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up LDAP Client 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 ldap client on ibm aix 7.2 on […]

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How to Configure Jenkins Pipelines on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Jenkins Pipelines on Debian 10

Introduction How to Configure Jenkins Pipelines 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. This […]

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Common Problems 112393

Windows Server 2019 — DNS Server service intermittently stops responding after cumulative update on Windows Server 2019 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 March 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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How to Use sudo on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use sudo 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 sudo on ibm aix 7.1 on IBM AIX […]

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