📌 What is Nginx?
Nginx is a web server which can also be used as a reverse proxy, load balancer, mail proxy, and HTTP cache. It handles server-related aspects, like SSL and caching, completely transparent to the application behind it.
Here, I'm going to show how to do that in NodeJs, But a similar approach might be used for others,
Let's move on,😎
📌First, Installing Nginx on Ubuntu
sudo apt-get update && sudo apt-get upgrade -y
sudo apt-get install nginx -y
📌Check Nginx status & start it,
Check status, and start it using the following commands:-
sudo systemctl status nginx
sudo systemctl start nginx
To run Nginx on system startup, using command below:-
sudo systemctl enable nginx
📌Dependency & Package Manager Varification
Check if Nodejs, and npm are already installed on server by using,
node --version
npm --version
If not then, Install Nodejs using the following commands:-
sudo apt-get update
sudo apt-get install nodejs
Now install npm using the following command:-
sudo apt-get install npm
Verify Nodejs and npm installations using below commands
node --version
npm --version
Now, It should return the Nodejs and npm installed versions.
📌Setting up Nginx for Nodejs application
In my case, I have only one main domain and like to deploy an application in different subdomains.
We are going to do deploy multi-application in a single host using NGINX.
That means our Host Ip address is same, just deploy an application in different ports.
🔰 Application 1 Setup:-
vi /etc/nginx/conf.d/example1.sadhan.com.conf
server {
listen 80;
server_name example1.sadhan.com www.example1.sadhan.com;
location / {
proxy_pass http://51.78.30.44:3001;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
Run first, Nodejs application in demond
node home/project1/app.js &
🔰 Application 2 Setup:-
vi /etc/nginx/conf.d/example2.sadhan.com.conf
server {
listen 80;
server_name example2.sadhan.com www.example2.sadhan.com;
location / {
proxy_pass http://51.78.30.44:3002;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
Run first, Nodejs application in demond
node home/project2/app.js &
Note:
&is using so that the application can be run in background. In my case, this is my public IP51.78.30.44.
You need to configure DNS & Namespace properly in Domain Panel. So that the main IP properly mapped.
📌Finally, Restart & Varifiy NGINX Server is running or not
service nginx restart
systemctl status nginx
🔰 Now open Browser and hit
- http://example1.sadhan.com # it will be different from your subdomain
- http://example2.sadhan.com # it will be different from your subdomain
👌 Congratulations That's all about!. & Thanks for your time & passion.
Feel free to comments, If you have any issues & queries.
Bonus Troubleshoot, Firewall Configurations
If firewall is running, then might some ports are not exposed externally. To do so, open firewall ports following below guides
#---------- On Debian/Ubuntu ----------
sudo ufw allow 80/tcp
sudo ufw allow 443/tcp
sudo ufw allow 3001/tcp
sudo ufw allow 3002/tcp
sudo ufw reload
#---------- On CentOS/RHEL ----------
firewall-cmd --permanent --add-port=80/tcp
firewall-cmd --permanent --add-port=443/tcp
firewall-cmd --permanent --add-port=3001/tcp
firewall-cmd --permanent --add-port=3002/tcp
firewall-cmd --reload
📗 Future Explore
If we want to run service after reboot then follow,
Top comments (1)
i have done the steps mentioned but the same is not working from outside the machine
What did you mean by this
Note: & is using so that the application can be run in background. In my case, this is my public IP 51.78.30.44.
You need to configure DNS & Namespace properly in Domain Panel. So that the main IP properly mapped.