web server

How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7

How to Set Up a Highly Available Web Stack with Keepalived on RHEL 7 High availability eliminates single points of failure by ensuring that if one server goes down, another takes over seamlessly. For web servers, one of the most common HA patterns is a Virtual IP (VIP) address that floats between two or more […]

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How to Configure Nginx Rate Limiting on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Nginx Rate Limiting on FreeBSD 14

Introduction This guide explains how to Configure Nginx Rate Limiting 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 […]

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How to Enable HTTP/2 in Nginx on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Enable HTTP/2 in Nginx on FreeBSD 14

Introduction Deploying enable http/2 in nginx 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 Profile Application Performance with perf on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Profile Application Performance with perf on RHEL 7

How to Profile Application Performance with perf on RHEL 7 Performance bottlenecks in production applications are notoriously difficult to diagnose using traditional monitoring tools alone. CPU usage metrics tell you that a system is busy but rarely tell you where the work is happening inside your application. The perf subsystem, built directly into the Linux […]

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How to Configure Nginx as a Reverse Proxy on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on FreeBSD 14

Introduction Deploying configure nginx as a reverse proxy 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 […]

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How to Secure Apache with Let's Encrypt on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Secure Apache with Let’s Encrypt on FreeBSD 14

Introduction How to Secure Apache with Let’s Encrypt 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 Secure Nginx with Let's Encrypt on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Secure Nginx with Let’s Encrypt on FreeBSD 14

Introduction This guide explains how to Secure Nginx with Let’s Encrypt 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 […]

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How to Configure Apache Virtual Hosts on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Apache Virtual Hosts on FreeBSD 14

Introduction Deploying configure apache virtual hosts 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 Set Up Pacemaker and Corosync for High Availability on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Pacemaker and Corosync for High Availability on RHEL 7

How to Set Up Pacemaker and Corosync for High Availability on RHEL 7 High availability (HA) clustering prevents individual server failures from causing service outages by automatically detecting node failures and restarting workloads on surviving nodes. On RHEL 7, the standard HA stack is built from three components: Corosync, which provides reliable cluster messaging and […]

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How to Configure Nginx Virtual Hosts on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Nginx Virtual Hosts on FreeBSD 14

Introduction This guide explains how to Configure Nginx Virtual Hosts 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 […]

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