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DNS Configuration Guide

Step-by-step guide to configuring DNS records for your domain and connecting it to your VDS.

ITLDC Team
dns domain setup

DNS Configuration Guide

This guide will help you configure DNS records for your domain and connect it to your VDS.

Understanding DNS Records

Common Record Types

A Record

  • Maps domain to IPv4 address
  • Example: example.com → 203.0.113.1

AAAA Record

  • Maps domain to IPv6 address
  • Example: example.com → 2001:db8::1

CNAME Record

  • Creates alias to another domain
  • Example: www.example.com → example.com

MX Record

  • Specifies mail servers
  • Includes priority value

TXT Record

  • Stores text information
  • Used for verification and SPF

Basic Configuration

Step 1: Find Your Server IP

Log in to your ITLDC control panel and note your server’s IP address.

Step 2: Access DNS Management

Go to your domain registrar’s control panel and find the DNS management section.

Step 3: Add A Record

Type: A
Name: @
Value: YOUR_SERVER_IP
TTL: 3600

Step 4: Add WWW Subdomain

Type: A
Name: www
Value: YOUR_SERVER_IP
TTL: 3600

Advanced Configuration

Email Server Setup

Add MX records for email:

Type: MX
Name: @
Value: mail.example.com
Priority: 10
TTL: 3600

Subdomain Configuration

Create subdomains for different services:

Type: A
Name: api
Value: YOUR_SERVER_IP
TTL: 3600

SSL Certificate Verification

For Let’s Encrypt validation, add:

Type: TXT
Name: _acme-challenge
Value: PROVIDED_BY_CERTBOT
TTL: 300

Email Authentication

SPF Record

Type: TXT
Name: @
Value: v=spf1 ip4:YOUR_SERVER_IP -all
TTL: 3600

DKIM Record

Type: TXT
Name: default._domainkey
Value: YOUR_DKIM_KEY
TTL: 3600

DMARC Record

Type: TXT
Name: _dmarc
Value: v=DMARC1; p=quarantine; rua=mailto:dmarc@example.com
TTL: 3600

Troubleshooting

Check DNS Propagation

Use online tools to check if DNS changes have propagated:

  • whatsmydns.net
  • dnschecker.org

Common Issues

DNS Not Resolving

  • Wait 24-48 hours for full propagation
  • Check record syntax
  • Verify nameservers are correct

Website Not Loading

  • Confirm web server is running
  • Check firewall rules
  • Verify A record is correct

Best Practices

  1. Use Low TTL During Testing: Set TTL to 300 seconds while making changes
  2. Increase TTL After Stable: Use 3600 or higher once everything works
  3. Keep Records Updated: Remove old records when changing servers
  4. Use DNSSEC: Enable if your registrar supports it
  5. Monitor DNS Health: Use monitoring tools to track uptime

DNS Providers

Consider using dedicated DNS providers for better performance:

  • Cloudflare (free with CDN)
  • Route53 (AWS)
  • Google Cloud DNS
  • DigitalOcean DNS

Verification Commands

Check A Record

dig example.com A

Check All Records

dig example.com ANY

Check Specific Nameserver

dig @8.8.8.8 example.com

Need Help?

If you need assistance with DNS configuration:

  • Contact our support team
  • Use our control panel DNS management
  • Check our video tutorials

Conclusion

Proper DNS configuration is essential for your website’s accessibility. Take time to set it up correctly and test thoroughly.

Need Help?

Our support team is available 24/7 to assist you.

Contact Support

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