Configure Dynamic DNS (DDNS)

Configure dynamic DNS (DDNS)

What is Dynamic DNS (DDNS)?

Dynamic DNS (DDNS) is a service that automatically updates DNS records when your IP changes. This is useful if you have a dynamic IP (that changes) and want to access your server or home network using a fixed domain name.

When to use DDNS?

DDNS is useful when:

• ✅ You have a dynamic IP from your internet provider
• ✅ You want to access your server from anywhere using a domain
• ✅ You have a server at home or in a small office
• ✅ Your IP changes frequently

Popular DDNS services

No-IP (free):

• URL: https://www.noip.com
• Offers free subdomains
• Requires confirmation every 30 days

Duck DNS (free):

• URL: https://www.duckdns.org
• Completely free
• Easy to configure

DynDNS (paid):

• Professional service
• Paid plans available

Configure DDNS with No-IP

Step 1: Create account

• Go to https://www.noip.com
• Create a free account
• Verify your email

Step 2: Create hostname

• Once inside, look for Dynamic DNS → Hostnames
• Click Create Hostname
• Fill in:
  • Hostname: The name you want (e.g., myserver)
  • Domain: Select a domain (e.g., noip.com, ddns.net)
  • IP Address: Your current IP (updates automatically)
• Click Create Hostname

Step 3: Install DDNS client

To update automatically, you need to install a client:

Windows:

• Download the client from No-IP website
• Install it and configure with your username and password
• The client will update automatically when your IP changes

Linux:

You can use a script or client:

# Example with curl
curl "https://username:password@dynupdate.no-ip.com/nic/update?hostname=myserver.noip.com&myip=$(curl -s ifconfig.me)"

Or install the official No-IP client for Linux.

Configure DDNS with Duck DNS

Step 1: Create account

• Go to https://www.duckdns.org
• Log in with your account (Google, etc.)

Step 2: Create subdomain

• Enter the subdomain name you want
• Click Add domain
• Note the token they provide

Step 3: Configure automatic update

You can update manually by visiting:

https://www.duckdns.org/update?domains=mysubdomain&token=your-token&ip=

Or configure a cron job in Linux:

*/5 * * * * curl "https://www.duckdns.org/update?domains=mysubdomain&token=your-token&ip="

Configure DDNS on router

Many modern routers support DDNS:

• Log in to your router's configuration
• Look for the DDNS or Dynamic DNS section
• Select your provider (No-IP, Duck DNS, etc.)
• Enter your credentials
• Enable the service

The router will update automatically when your IP changes.

Verify that DDNS works

Option 1: Verify from service panel

• Log in to your DDNS service panel
• Verify that the displayed IP is current
• Verify the last update

Option 2: Verify with ping

ping myserver.noip.com

You should see your current IP.

Common issues

DDNS doesn't update

• Verify that the client is running
• Verify your credentials
• Verify your internet connection
• Check DDNS client logs

Hostname doesn't resolve

• Wait for DNS propagation to complete
• Verify that the hostname is active in the panel
• Verify that the IP is updated

Service requires confirmation every 30 days

• Some free services require periodic confirmation
• Check your email for reminders
• Consider paid services if you need more stability

Tips

• ✅ Use reliable and established DDNS services
• ✅ Regularly verify that the service is working
• ✅ Configure the client to start automatically
• ✅ Consider paid services for greater reliability
• ✅ Have a backup access method (direct IP, etc.)

Need help?

If you're having trouble configuring DDNS or need help, open a ticket from the billing.baires.host panel or contact us for support.

You can also reach us through our social media:

• Instagram: @baires_host
• Discord (active support): https://discord.gg/dzjauatAFN
• Linktree: https://linktr.ee/baires.host