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cloudflare tunnel using subdomain

Preparing Cloudflare Account

Verify that your Cloudflare account is active and has the necessary permissions to create subdomains.

Ensure that your domain is added to Cloudflare and set up with DNS records.

Setting Up Cloudflare Tunnel

Install Cloudflare Tunnel client on your local machine or server.

Authenticate the Tunnel client with your Cloudflare account.

Create a configuration file for your Tunnel, specifying the subdomain you want to use.

Start the Tunnel client and verify that it is connected to Cloudflare.

Configuring DNS Records

Add a CNAME record in your domain's DNS settings pointing the subdomain to the Tunnel's hostname provided by Cloudflare.

Verify that the DNS record has propagated and is pointing to the correct Tunnel hostname.

Ensure that the TTL (Time to Live) for the DNS record is set to a low value to allow for quick changes if needed in the future

Check for any conflicting DNS records that may interfere with the new CNAME record

Configure any necessary firewall rules or security settings to allow traffic to flow through the Tunnel properly

Set up any additional DNS records that may be required for the Tunnel to function correctly, such as MX records for email or SPF records for email authentication

Monitor the DNS record for any changes or issues that may arise, such as unexpected changes in the Tunnel hostname or downtime

Testing and Troubleshooting

Test the connectivity to your subdomain by accessing it in a web browser.

Monitor the Tunnel status in the Cloudflare dashboard to ensure it remains connected.

Troubleshoot any issues with the Tunnel connection or DNS configuration if necessary.

Security and Best Practices

Enable Web Application Firewall (WAF) rules in Cloudflare to protect your Tunnel endpoint.

Implement access controls and authentication mechanisms to restrict access to your Tunnel.

Regularly review and update your Tunnel configuration and security settings to maintain a secure environment.

By following this checklist, you can successfully set up and configure a Cloudflare Tunnel using a subdomain for your Information Technology organization.

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