Tls Ssl

Common Problems 118126

Ubuntu 18.04 LTS – rsyslog forwarding stops after remote TLS policy update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 May 2020 Affected versions: Ubuntu 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 […]

Read more
Common Problems 117628

Ubuntu 20.04 LTS – certbot renewal fails because port 80 is in use

🟠 High   ⏱ 5–30 min  Last verified: 8 May 2020 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]

Read more
How to Install Memcached on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Memcached on Debian 9

Introduction How to Install Memcached on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. This tutorial […]

Read more
How to Set Up borgbackup on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up borgbackup on Debian 10

Introduction How to Set Up borgbackup 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 […]

Read more
How to Configure TCP Wrappers on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure TCP Wrappers on Debian 10

Introduction This guide explains how to Configure TCP Wrappers on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the standard […]

Read more
Common Problems 113060

Windows Server 2016 — VPN sessions fail due to MTU mismatch and packet fragmentation — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 6 May 2020 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
How to Configure PostgreSQL Remote Access on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure PostgreSQL Remote Access on Debian 9

Introduction Deploying configure postgresql remote access 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 You will […]

Read more
How to Install ArgoCD GitOps Tool on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install ArgoCD GitOps Tool on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install argocd gitops tool on debian 10 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 […]

Read more
How to Configure PostgreSQL Remote Access on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure PostgreSQL Remote Access on Debian 10

Introduction This guide explains how to Configure PostgreSQL Remote Access on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the […]

Read more
How to Configure a Python Gunicorn Application Server on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure a Python Gunicorn Application Server on Debian 10

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

Read more
CHAT