Troubleshooting

How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 7

How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 7 HAProxy is one of the most widely deployed open-source load balancers in production infrastructure, renowned for its high throughput, low latency, and fine-grained configurability. On RHEL 7 it is available directly from the base repositories and integrates cleanly with systemctl and firewalld. […]

Read more
How to Install Keepalived for High Availability on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Keepalived for High Availability on Debian 10

Introduction How to Install Keepalived for High Availability 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 […]

Read more
How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7

How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7 Varnish Cache is a high-performance HTTP reverse proxy and caching accelerator designed to sit in front of your web server. When a visitor requests a page, Varnish checks whether it holds a fresh cached copy. If it does, the response is served […]

Read more
How to Configure OSPF with Quagga on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure OSPF with Quagga on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure ospf with quagga 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 Set Up BGP Routing with BIRD on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up BGP Routing with BIRD on Debian 10

Introduction This guide explains how to Set Up BGP Routing with BIRD 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 […]

Read more
How to Configure Nginx FastCGI Caching on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Nginx FastCGI Caching on RHEL 7

How to Configure Nginx FastCGI Caching on RHEL 7 FastCGI caching in Nginx allows you to store responses from your PHP backend — typically PHP-FPM — directly on disk or in memory, serving subsequent identical requests without re-executing PHP. On a busy RHEL 7 server this can reduce backend load by an order of magnitude, […]

Read more
How to Configure iptables Packet Filtering on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure iptables Packet Filtering on Debian 10

Introduction Deploying configure iptables packet filtering 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. Prerequisites You will […]

Read more
How to Set Up IPv6 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up IPv6 on Debian 10

Introduction Deploying set up ipv6 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. Prerequisites You will need […]

Read more
How to Configure Network Bridging on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Network Bridging on Debian 10

Introduction How to Configure Network Bridging 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 Set Up FTP Server with vsftpd on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up FTP Server with vsftpd on Debian 10

Introduction How to Set Up FTP Server with vsftpd 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 […]

Read more
CHAT