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How to Configure GEOM RAID on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure GEOM RAID on FreeBSD 14

Introduction How to Configure GEOM RAID 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 filtering, […]

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How to Limit Container Resources with cgroups on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Limit Container Resources with cgroups on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up limit container resources with cgroups 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 Docker Security Scanning on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Docker Security Scanning on Debian 12

Introduction This guide explains how to Configure Docker Security Scanning 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 […]

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How to Set Up Loki and Promtail on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up Loki and Promtail on FreeBSD 14

Introduction How to Set Up Loki and Promtail 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 […]

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How to Configure DNSSEC on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure DNSSEC on FreeBSD 14

Introduction How to Configure DNSSEC 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 filtering, and […]

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How to Tune Kernel Parameters with sysctl on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on FreeBSD 14

Introduction Deploying tune kernel parameters with sysctl 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 […]

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How to Install Kotlin and Set Up a JVM Project on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Kotlin and Set Up a JVM Project on Debian 12

Introduction This guide explains how to Install Kotlin and Set Up a JVM Project 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 […]

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How to Configure RAID with mdadm on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure RAID with mdadm on Debian 12

Introduction How to Configure RAID with mdadm 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 Sync Time with Chrony on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Sync Time with Chrony on RHEL 9

Accurate time synchronization is not optional on a server — it is a hard requirement. TLS certificate validation fails when the clock is wrong by more than a few minutes. Kerberos authentication rejects tickets with a clock skew over 5 minutes. Cron jobs fire at the wrong time. Log correlation across multiple servers becomes impossible […]

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How to Install Pulumi on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Pulumi on FreeBSD 14

Introduction This guide explains how to Install Pulumi on FreeBSD 14 on FreeBSD 14. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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