## Files And Directories
### Content
`/var/www/html`: The actual web content, which by default only consists of the default Nginx page you saw earlier, is served out of the /var/www/html directory. This can be changed by altering Nginx configuration files.
### Server Configuration
`/etc/nginx`: The Nginx configuration directory. All of the Nginx configuration files reside here.
`/etc/nginx/nginx.conf`: The main Nginx configuration file. This can be modified to make changes to the Nginx global configuration.
`/etc/nginx/sites-available/`: The directory where per-site "server blocks" can be stored. Nginx will not use the configuration files found in this directory unless they are linked to the sites-enabled directory (see below). Typically, all server block configuration is done in this directory, and then enabled by linking to the other directory.
`/etc/nginx/sites-enabled/`: The directory where enabled per-site "server blocks" are stored. Typically, these are created by linking to configuration files found in the sites-available directory.
`/etc/nginx/snippets`: This directory contains configuration fragments that can be included elsewhere in the Nginx configuration. Potentially repeatable configuration segments are good candidates for refactoring into snippets.
### Server Logs
`/var/log/nginx/access.log`: Every request to your web server is recorded in this log file unless Nginx is configured to do otherwise.
`/var/log/nginx/error.log`: Any Nginx errors will be recorded in this log.
## Manage The Nginx Process
To stop your web server, you can type:
`sudo systemctl stop nginx`
To start the web server when it is stopped, type:
`sudo systemctl start nginx`
To stop and then start the service again, type:
`sudo systemctl restart nginx`
If you are simply making configuration changes, Nginx can often reload without dropping connections. To do this, this command can be used:
`sudo systemctl reload nginx`
By default, Nginx is configured to start automatically when the server boots. If this is not what you want, you can disable this behavior by typing:
`sudo systemctl disable nginx`
To re-enable the service to start up at boot, you can type:
`sudo systemctl enable nginx`