Webserver on Linux running in Raspberry PI

Webserver on Linux running in Raspberry PI | NGINX

- August 08, 2022

NGINX WebServer on Linux on Raspberry PI

NGINX is web server, reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server

https://nginx.org/en/

Documentation of NGINX

https://nginx.org/en/docs/install.html

Commercial version of NGINX is available at ...

https://www.nginx.com/

Installation of Nginx Web Server

Installation in Raspberry PI OS

$ sudo apt install nginx

Checking version of nginx Server

$ nginx -v

First test

As soon as we will install nginx, it is almost ready to work.

Open browser in different computer and enter either IP address of RSP or hostname in web browser.

you should able to view default webpage.

Now, as our web browser is running.

It means Nginx webserver is installed and running successfully.

Now, we should review configuration files available ..

Nginx Configuration

Nginx need to be configured. Configuration step involved setting of location of web-pages, port number etc. following are the configuration files ...

1. /etc/nginx/nginx.conf

2. /etc/nginx/sites-available/default

Nginx configuration files

Following are the configuration files ...

nginx.conf
location: /etc/nginx/nginx.conf

This file has three sections...

events {}

http {}

mail {}

Each section has setting which is related to section name.

default

location: /etc/nginx/sites-available/default

“default” file in “sites-available” directory has all setting like where html pages will be stored, site name etc. Exact file path ...

/etc/nginx/sites-available/default

Refer server section in default file

server {

...

root /var/www/html;

...

}

Adding new website

Just add webpage at following locatiion

/var/www/html/

Once you able to modify configuration files as per requirement, we need to verity configuration file and restart web server, so that it will rerun with all configured settings.

Testing the configuration files

If any change is made, verify configuration file

pi@raspberrypi:~ $ sudo nginx -t

Verify service

pi@raspberrypi:~ $ sudo service nginx configtest

[ ok ] Testing nginx configuration:.

Restarting nginx service

pi@raspberrypi:~ $ sudo service nginx restart

Note - if you want to see whether nginx process is running in Linux, try "ps" command as shown in next section.

Addition Verification

Nginx Process and Service

Verify if nginx process is running

$ ps -ef | grep nginx

we have nginx process is running from /usr/sbin/nginx. worker process are also running.

Verify if nginx service is running

$ service --status-all | grep nginx

[ + ] nginx

Nginx listening port

Where nginx is listening

Use Netstat command tlpn and grep nginx

$ sudo netstat -tlpn | grep nginx

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 2681/nginx: master

tcp6 0 0 :::80 :::* LISTEN 2681/nginx: master

Testing webserver

We have to find out hostname or IP address of Linux OS. or host where webserver is running.

To find hostname just run this command ...

$ hostname

To know ip address run following command ...

$ hostname -I

Note - ifconfig command can also be used.

Other web-servers

Apache HTTP Server https://httpd.apache.org/

Monkey Server http://monkey-project.com/

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