Support

Frequently asked questions


What is this for?

Portmap.io allows you to provide access to your PC from the Internet when you cannot setup port forwarding on your router, or your ISP doesn't assign you a real IP address, or your IP address is changing over time.
For instance, you need to show a website you are working on to your client. Or, you have a video surveillance system working over mobile internet.

How it works?

You create a VPN tunnel from your PC to our server using free OpenVPN software and define a port forwading rule to forward requests from the Internet through our server to your local machine. It works even if you do not have real IP address or your incoming traffic is blocked. You can forward HTTP traffic to your local web-server as well as any TCP or UDP traffic. If your web-server has virtual hosts configured, you can specify which one you are connecting to.

What should I do to get it working?

  1. Sign up
  2. Activate your profile by clicking the activation link sent to your email.
  3. Create a configuration file for OpenVPN or SSH key using the 'Generate' button on 'Create new configuration' form.
  4. Create a mapping rule by specifying configuration created, remote and local ports, host header and IP allowed to access (if required).
  5. Start VPN or SSH tunnel.
  6. Test the connection.

SSH is asking me for passphrase when using generated private key.

That means SSH client is not able to read the key file or it's corrupted. Try to copy-paste the private key instead of downloading, check permissions on the key file, add -vv keys to ssh command line for debugging.

Tunnel is up and running but I cannot access my PC over Internet

  1. Check that you've created a mapping rule with the correct ports
  2. Check that your service is running and listening IPv4 port on all interfaces by running netstat -an command. You should see the line similar to
    TCP   0.0.0.0:80   0.0.0.0:0   LISTENING
    for Apache
  3. Check that your firewall is not blocking traffic via tun0 interface

My Apache works on IPv6. Does Portmap.io support IPv6?

No. You have to change it to IPv4.

Can I create more than one mapping rule/use more than one host/have custom domain name?

Yes, you have to subscribe to Premium plan.

How long it will be free?

Basic plan which allows only one mapping rule is unlimited.

If you haven't found answers to your questions, please feel free to contact us using the form below or post your question to FB group.