Firewall

Common Problems 121082

Debian 10 – UFW policy blocks package downloads and outbound HTTPS

🟡 Medium   ⏱ 5–30 min  Last verified: 21 March 2020 Affected versions: Debian 10 📖 ~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 Configure Tekton CI/CD on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Tekton CI/CD on FreeBSD 12

Introduction Deploying configure tekton ci/cd 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 Configure Nginx as a TCP/UDP Load Balancer on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Nginx as a TCP/UDP Load Balancer on Debian 10 (DEBIAN-10-2)

Introduction Deploying configure nginx as a tcp/udp load balancer 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. […]

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How to Configure ZFS Snapshots and Rollback on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure ZFS Snapshots and Rollback on FreeBSD 12

Introduction Deploying configure zfs snapshots and rollback 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 […]

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Common Problems 112523

Windows Server 2019 — IPsec site-to-site tunnel renegotiation fails after certificate renewal on RRAS — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 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 Configure InfluxDB and Grafana on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure InfluxDB and Grafana on Debian 9

Introduction Deploying configure influxdb and grafana 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 Before you […]

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How to Configure Zabbix Agent on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Zabbix Agent on Debian 10

Introduction How to Configure Zabbix Agent 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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How to Configure Cross-Forest Trusts in Active Directory on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Cross-Forest Trusts in Active Directory on Windows Server 2019

Introduction to Cross-Forest Active Directory Trusts An Active Directory forest represents a security boundary. A Cross-Forest Trust is a two-way or one-way trust relationship between two separate AD forests that allows users in one forest to authenticate to resources in another. This is commonly needed after mergers and acquisitions, for inter-company collaboration, or when separate […]

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How to Configure AIX Fast Connect (SMB) on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure AIX Fast Connect (SMB) 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 aix fast connect (smb) on ibm aix 7.1 […]

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How to Configure AIX Health Check on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure AIX Health Check 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 aix health check on ibm aix 7.1 on […]

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