How to Configure Nginx Rate Limiting and Connection Throttling on RHEL 8

December 7, 2025
Linux
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Rate limiting and connection throttling are essential defences against brute-force attacks, credential stuffing, and high-volume web scrapers. Nginx provides two built-in modules — ngx_http_limit_req_module for request-rate limiting and ngx_http_limit_conn_module for connection limiting — both compiled into the default binary. On RHEL 8 these capabilities are available immediately after installing Nginx from the AppStream module stream […]

How to Configure DNS with Unbound on Debian 13

December 7, 2025
Linux
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Introduction Deploying configure dns with unbound on a Debian 13 Trixie 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 Ensure Debian 13 Trixie is […]

How to Configure Nginx with ModSecurity WAF on RHEL 8

December 7, 2025
Linux
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ModSecurity is not limited to Apache — it can also protect Nginx deployments through a dedicated dynamic module called ngx_http_modsecurity_module. The module embeds the ModSecurity v3 library directly into Nginx’s request processing pipeline, enabling the same OWASP Core Rule Set that Apache users rely on. On RHEL 8, Nginx is available from the AppStream module […]

How to Install BIND9 DNS Server on Debian 13

December 7, 2025
Linux
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Introduction How to Install BIND9 DNS Server on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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. […]

How to Set Up ModSecurity WAF with Apache on RHEL 8

December 7, 2025
Linux
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ModSecurity is a widely-deployed open-source Web Application Firewall (WAF) that integrates directly with Apache as a module. Combined with the OWASP Core Rule Set (CRS), it provides protection against the most common web attack categories including SQL injection, cross-site scripting, and remote code execution. On RHEL 8, both the mod_security Apache module and the mod_security_crs […]

How to Configure Squid Proxy on Debian 13

December 7, 2025
Linux
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Introduction Deploying configure squid proxy on a Debian 13 Trixie 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 Ensure Debian 13 Trixie is fully […]

How to Install and Configure Caddy Web Server on RHEL 8

December 7, 2025
Linux
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Caddy is a modern, open-source web server written in Go that automatically provisions and renews TLS certificates via Let’s Encrypt. Unlike Apache or Nginx, Caddy requires almost no manual TLS configuration, making it an excellent choice for developers who want HTTPS out of the box. On RHEL 8, Caddy is not available in the default […]

How to Configure strongSwan IPsec VPN on Debian 13

December 7, 2025
Linux
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Introduction Deploying configure strongswan ipsec vpn on a Debian 13 Trixie 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 a registered […]

How to Configure Nginx Load Balancing on RHEL 8

December 7, 2025
Linux
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Load balancing distributes incoming client requests across multiple backend servers, preventing any single server from becoming a bottleneck and improving both throughput and fault tolerance. Nginx’s built-in load balancing is highly capable and available in the open-source version without any additional modules for most common use cases. On RHEL 8, you can configure Nginx to […]

How to Set Up WireGuard VPN on Debian 13

December 7, 2025
Linux
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Introduction This guide explains how to Set Up WireGuard VPN on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with the […]

How to Configure Nginx Rate Limiting and Connection Throttling on RHEL 8

How to Configure Nginx with ModSecurity WAF on RHEL 8

How to Set Up ModSecurity WAF with Apache on RHEL 8

How to Install and Configure Caddy Web Server on RHEL 8

How to Configure Nginx Load Balancing on RHEL 8

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How to Configure Nginx Rate Limiting and Connection Throttling on RHEL 8

How to Configure DNS with Unbound on Debian 13

How to Configure Nginx with ModSecurity WAF on RHEL 8

How to Install BIND9 DNS Server on Debian 13

How to Set Up ModSecurity WAF with Apache on RHEL 8

How to Configure Squid Proxy on Debian 13

How to Install and Configure Caddy Web Server on RHEL 8

How to Configure strongSwan IPsec VPN on Debian 13

How to Configure Nginx Load Balancing on RHEL 8

How to Set Up WireGuard VPN on Debian 13

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