c8d39b6658
Add sudo at the first of each syntax line and added Step 3 (firewall adjustment) and Step 4 (check nginx service)
68 lines
2.3 KiB
Markdown
68 lines
2.3 KiB
Markdown
---
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title: Nginx
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---
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# Nginx
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## Introduction
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- Nginx is a web server which can also be used as a reverse proxy, load balancer and HTTP cache.
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- It is one of the most popular web servers in use and is responsible for hosting some of the largest and highest-traffic sites on the internet.
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- It is proven to be lighter on resources than httpd/Apache.
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- Nginx is free and open-source software, first released in 2004.
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## Installation
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### Installation of Nginx on Ubuntu
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Update the local package index and install Nginx from default repositories:
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```sh
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$ sudo apt-get update && sudo apt-get upgrade
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$ sudo apt-get install nginx
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$ sudo systemctl status nginx
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```
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Enable nginx on the firewall using `ufw`
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```sh
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sudo ufw allow 'Nginx HTTP'
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```
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Validate nginx is running:
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```sh
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systemctl status nginx
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```
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### Installation of Nginx on CentOS 7
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Add Nginx repository and install:
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```sh
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$ sudo yum install epel-release
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$ sudo yum install nginx
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$ sudo systemctl start nginx # will start the server
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```
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## Key file locations for Debian based distributions (Ubuntu included)
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/etc/nginx/nginx.conf
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- This is where you will find the global configuration values, what user the nginx process runs as, how many workers it has etc.
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/etc/nginx/sites-available/*
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- As one nginx instance can run multiple sites with separate configurations this is the directory where you will have the separate configuration files. Usually there is a file named 'default', but any file in this directory that can be parsed by nginx is available.
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/etc/nginx/sites-enabled/*
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- This is the directory that holds the site configurations that are actually live (enabled), you should not move files here directly, rather sym-link the files from the sites-available directory. Making a linked file in this directory does not make it live, for that you need to restart nginx or have it reload the config. Usually done via systemd.
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/var/log/nginx
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- Default location for nginx logs.
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#### More Information
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[An Introduction to NGINX for Developers](https://medium.freecodecamp.org/an-introduction-to-nginx-for-developers-62179b6a458f)
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[Nginx tutorial](https://www.netguru.co/codestories/nginx-tutorial-basics-concepts)
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[Links to top tutorials](https://medium.com/quick-code/top-tutorials-to-learn-nginx-for-web-server-dc8638c48fae)
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