Nginx

Nginx installation, server blocks, reverse proxying, SSL, and performance tuning.

Nov 13, 2026 • 10 min read • new

Fix 504 Gateway Timeout Error in Nginx

Diagnose Nginx 504 Gateway Timeout errors using upstream logs and response times. Fix slow applications or adjust proxy_read_timeout and PHP-FPM timeouts.

Green Nginx emblem linked by a broken connection to a 502 response card on a sage background

Nov 12, 2026 • 11 min read • new

Fix 502 Bad Gateway Error in Nginx

Diagnose Nginx 502 Bad Gateway errors using the error log. Fix refused connections, PHP-FPM sockets, permissions, and oversized upstream headers.

File upload stopped at a request size limit, with a 413 error and client_max_body_size setting

Nov 7, 2026 • 7 min read

Nginx 413 Request Entity Too Large: client_max_body_size Fix

Fix the Nginx 413 Request Entity Too Large error: raise client_max_body_size in the right context and match the PHP-FPM upload limits.

Oct 31, 2026 • 6 min read

Fix Nginx "Request Header or Cookie Too Large" Error

Resolve Nginx's 400 Request Header or Cookie Too Large error: clear site cookies, adjust large_client_header_buffers, and check the active configuration.

Oversized cookie request card blocked by a narrow header buffer beside a smaller card passing through a wider buffer

Oct 25, 2026 • 12 min read

How to Install Odoo 20 on Ubuntu 24.04

Install Odoo 20 on Ubuntu 24.04 from source in a Python virtual environment, run it as a systemd service, and serve it over HTTPS through Nginx.

Oct 18, 2026 • 13 min read

Nginx Location Blocks: Match Rules and Priority

How Nginx picks a location block: prefix, exact, and regex matches, the priority order, named locations, and common configuration patterns.

Oct 17, 2026 • 14 min read

Nginx Reverse Proxy: How to Configure proxy_pass and Headers

Configure Nginx as a reverse proxy with proxy_pass and proxy_set_header, including trailing slash rules, load balancing, websockets, TLS, and common errors.

Oct 3, 2026 • 11 min read

503 Service Unavailable Error: Causes and How to Fix It

The 503 Service Unavailable error means the server cannot handle your request right now. This guide explains what causes it on Nginx, Apache, and load balancers, and how to fix it.

Sep 9, 2026 • 6 min read

How to Start, Stop, or Restart Nginx

Learn how to start, stop, restart, and reload Nginx using systemctl on Linux. Includes the reload vs restart difference, configuration testing, and autostart setup.

Aug 23, 2026 • 14 min read

500 Internal Server Error: What It Means & How to Fix It

A 500 Internal Server Error means the server encountered an unexpected condition. This guide explains common causes, how to diagnose the problem using log files, and steps to fix it.

Jul 17, 2026 • 7 min read

Redirect HTTP to HTTPS in Nginx

How to redirect HTTP to HTTPS in Nginx using a separate server block with a 301 redirect, for a single site or all sites on the server.

Jun 17, 2026 • 5 min read

Configure Odoo with Nginx as a Reverse Proxy

Put Nginx in front of Odoo as an SSL termination and reverse proxy. This guide covers the full Nginx server block, WebSocket proxying for live chat, HTTP to HTTPS redirection, and locking down the Odoo backend.

May 20, 2026 • 5 min read

How to Install Nginx on Debian 13

Step-by-step instructions for installing and configuring Nginx on Debian 13 Trixie using apt, including UFW rules, the systemd service, and your first server block.

May 12, 2026 • 7 min read

How to Install LEMP Stack on Ubuntu 26.04

Set up a LEMP stack on Ubuntu 26.04 with Nginx, MySQL 8.4, PHP 8.5, PHP-FPM, and a working PHP database test.

Apr 25, 2026 • 3 min read

How to Install Nginx on Ubuntu 26.04

Install and configure Nginx on Ubuntu 26.04, allow web traffic through the firewall, and manage the Nginx service.

Apr 14, 2026 • 7 min read

Nginx Commands You Should Know

Reference for the most-used Nginx commands on Linux: start, stop, restart, reload, test config, dump config, check version, and read logs with systemd.

Apr 2, 2026 • 5 min read

Nginx Server Blocks on Ubuntu: Host Multiple Websites

Set up Nginx server blocks on Ubuntu to host multiple websites on a single server, each with its own document root, logs, and configuration.

Mar 21, 2026 • 8 min read

Configuring the Nginx Error and Access Logs

This guide explains how to configure Nginx access and error logs, define custom log_format directives, and inspect log entries on Linux.

Oct 26, 2021 • 9 min read

How to Install Odoo 15 on Ubuntu 20.04

This article explains how to install and deploy Odoo 15 inside a Python virtual environment on Ubuntu 20.04. Odoo is a popular open-source suite of business apps that help companies to manage and run their business.

Oct 23, 2020 • 6 min read

How to Install and Configure Squid Proxy on Ubuntu 20.04

This tutorial explains how to set up a Squid Proxy on Ubuntu 20.04 and configure Firefox and Google Chrome web browsers to use it.