Installing Nginx And Managed By Command (Part 2)

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Javarevisited

4 min readFeb 5, 2022

Introduction

in this article, I will install Nginx in a machine, and in part 3 of this series, you will explain about the Nginx file system to make successful configuration and see the Nginx logs of any request or errors.

we need to install Nginx in a local machine or virtual server to handle HTTP requests by it and make our configuration to our services.

in this article, we will see Nginx and where I can find the config file.

we can install Nginx by docker as a container but this article will say about installing the original application inside Ubuntu 20.04 LTS Os.

all parts of Nginx Articles :

Intro to Nginx Web Server (Part 1)
you are in part two of the Nginx Series
Nginx File Configuration and Logs (Part 3)

Installing Nginx

let`s go to installing Nginx in our machine.

the Nginx is available in Ubuntu which means we can use apt to install it.

sudo apt updat
sudo apt install nginxe

we need Adjusting the Firewall

the firewall software need Adjusting to allow access to the service, Nginx registers itself as a service with ufw upon installation.

now we need to work with the list configuration of `ufw`.

sudo ufw app list

after that you must see this result.

OutputAvailable applications:
 Nginx Full
 Nginx HTTP
 Nginx HTTPS
 xOpenSSH

from this result you can show you has three profile available from Nginx.

Nginx Full: this profile open with port 80 (normal, unencrypted web traffic) and port 443 (TLS/SSL encrypted traffic)
Nginx HTTP: this profile open only port 80
Nginx HTTPS: this profile open only port 443 (TLS/SSL encrypted traffic)

how i can enable profile with nginx by Ubuntu

you can write the following code in your terminal

to enable profile.

sudo ufw allow 'Nginx HTTP'

and we need vitrify changed by the following code.

You can verify the change by typing:

after write above code you must show this result

Output
Status: active
 
To              Action  From
--              ------  ----
OpenSSH         ALLOW   Anywhere         
Nginx HTTP      ALLOW   Anywhere         
OpenSSH (v6)    ALLOW   Anywhere (v6)      
Nginx HTTP (v6) ALLOW   Anywhere (v6)

now we need a check the web server

in this process must be shown the Nginx is up and ready, but we need to check if it the up and ready by the following code.

systemctl status nginx

and after write above code you should be shown the following result

Output
● nginx.service - A high performance web server and a reverse proxy server
 Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
 Active: active (running) since Fri 2020-04-20 16:08:19 UTC; 3 days ago
  Docs: man:nginx(8)
 Main PID: 2369 (nginx)
 Tasks: 2 (limit: 1153)
 Memory: 3.5M
 CGroup: /system.slice/nginx.service
     ├─2369 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
     └─2380 nginx: worker process

now the service is started successfully without any problem

but we need more check if the Nginx is ready we can do this process when calling any page from Nginx

how i can send request to default landing page in Nginx?

you can access the default landing page to check if Nginx start without any problem or not by sending request to your IP address

if don’t know your service IP address you can write the following code

curl -4 icanhazip.com

the icanhazip.com is tools provider your public IP address

when write above code you can send request from your browser to this following

http://your_server_ip

after it, you must show this page.

now the Nginx is running without any problem

how I can manage Nginx by command line:

we can manage the Nginx process when applying the command in your terminal

to Stop Nginx after started write the following command

sudo systemctl stop nginx

to start Nginx after stopped write the following command .

sudo systemctl start nginx

to restart Nginx write the following code

sudo systemctl restart nginx

if you have new configuration and want apply it you can use the following command.

sudo systemctl reload nginx

the Nginx by default starts the configuration when boot your web service if don’t need or don’t want to run the configuration you can disable the configuration when applying this command.

sudo systemctl disable nginx

but if we have re-enabled the configuration we can use this command to do it

sudo systemctl enable nginx

Conclusion:

in this article we installed Nginx and ware see some commands to help managed Nginx like start, stop, and restart.

in the next article, we will explain about Nginx file system and talk about the Nginx files job.