Tls Ssl

How to Configure Docker Daemon TLS on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Docker Daemon TLS on FreeBSD 14

Introduction Deploying configure docker daemon tls on freebsd 14 on a FreeBSD 14 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 […]

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How to Enable FIPS Mode on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Enable FIPS Mode on Debian 12

Introduction This guide explains how to Enable FIPS Mode on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the standard […]

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How to Set Up a Git Server with Gitea on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on RHEL 9

Gitea is a lightweight, self-hosted Git service written in Go that provides GitHub-like functionality (repositories, issues, pull requests, wikis, webhooks, and CI/CD via Gitea Actions) in a single binary consuming under 100 MB of RAM. Compared to GitLab CE (which requires 4–8 GB RAM and a complex Omnibus bundle), Gitea is ideal for small teams, […]

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How to Monitor ZFS Pool Health on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Monitor ZFS Pool Health on FreeBSD 14

Introduction How to Monitor ZFS Pool Health on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 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 […]

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How to Set Up a LAMP Stack on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up a LAMP Stack on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up a lamp stack on freebsd 14 on FreeBSD 14 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 […]

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How to Configure Apache2 MPM Worker on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Apache2 MPM Worker on Debian 12

Introduction How to Configure Apache2 MPM Worker on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. […]

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How to Set Up SSH Key Authentication on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up SSH Key Authentication on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up ssh key authentication on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

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How to Configure Database Connection Pooling with PgBouncer on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Database Connection Pooling with PgBouncer on RHEL 9

PgBouncer is a lightweight PostgreSQL connection pooler that solves one of PostgreSQL’s most common scalability problems: the high cost of creating new database connections. Unlike MySQL, PostgreSQL spawns a new OS process for each client connection, which consumes approximately 5–10 MB of memory and requires significant CPU time to establish. Web applications that open hundreds […]

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Common Problems 114593

RHEL 9 dnf download failures behind enterprise proxy

🟡 Medium   ⏱ 5–30 min  Last verified: 23 January 2024 📖 ~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 & Cross-Refs References & Further […]

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How to Configure cAdvisor Container Metrics on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure cAdvisor Container Metrics on Debian 12

Introduction How to Configure cAdvisor Container Metrics on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. […]

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