basic-dns

Basic DNS — Custom Domain Configuration

Overview

This project documents how to configure a custom domain using Rumahweb DNS Management, connect a website to GitHub Pages, and point a subdomain to an Nginx web server running on a Helipod VPS.

Project Details

• Domain: formapi.online
• DNS Provider: Rumahweb
• Static Website Hosting: GitHub Pages
• VPS Provider: Helipod
• VPS Operating System: Ubuntu 24.04
• Web Server: Nginx

Domain Architecture

Domain	Purpose	Target
github.formapi.online	GitHub Pages website	codewithun.github.io
server.formapi.online	VPS-hosted website	169.58.223.6

1. Configure DNS Records

DNS records were configured through Rumahweb DNS Management.

GitHub Pages

Field	Value
Type	CNAME
Hostname	github
Target	codewithun.github.io

Helipod VPS

Field	Value
Type	A
Hostname	server
Target	169.58.223.6

A TXT record was also created to verify domain ownership through GitHub.

2. Configure GitHub Pages

1. Create a GitHub repository and enable GitHub Pages.
2. Open the repository’s Settings → Pages.
3. Enter github.formapi.online in the Custom domain field.
4. Save the configuration.
5. Configure the corresponding CNAME record in Rumahweb.
6. Wait for DNS propagation and HTTPS provisioning.

Website: https://github.formapi.online

3. Configure the VPS

The static website was deployed to an Ubuntu 24.04 VPS running Nginx.

The Nginx document root is:

/var/www/static-site

The website files include:

• index.html
• style.css
• images/

The Nginx server block serves the website from /var/www/static-site.

The domain server.formapi.online points to the VPS public IP address. The HTTP service is exposed through external port 32080, mapped to internal port 80.

Website: http://server.formapi.online:32080

4. Verify DNS Resolution

DNS resolution was checked using the dig command.

GitHub Pages

dig github.formapi.online CNAME +short

Expected result:

codewithun.github.io.

VPS

dig server.formapi.online A +short

Expected result:

169.58.223.6

Both DNS records resolved to their expected targets during testing.

5. Results

• The custom domain was verified through GitHub.
• The GitHub Pages website was accessible through its custom subdomain.
• The VPS subdomain resolved to the Helipod VPS public IP.
• The Nginx website was accessible through the VPS subdomain and external HTTP port.

Conclusion

This project demonstrates how DNS records connect custom domains to different hosting platforms. It covers domain ownership verification, CNAME and A records, GitHub Pages custom domains, and VPS-based website hosting.

References

• GitHub Pages Documentation
• GitHub Custom Domain Documentation
• Rumahweb
• roadmap.sh — Basic DNS