Solana: Run rpc node connection timed out Unable to determine the validator’s public IP address

Error in Setting Up RPC Node Connection: Unable to Determine Validator’s Public IP Address

As a Solana developer, you’re likely no stranger to the challenges of setting up a remote server for testing and development. One common issue that can arise when using Hetzner servers is connecting to the RPC node. In this article, we’ll delve into the error “Unable to determine the validator’s public IP address” and explore potential solutions.

The Issue: Unable to Determine Validator’s Public IP Address

The error message indicates that the Solana RPC node connection has timed out due to an inability to obtain the validator’s public IP address. This is a common issue when using a rented Hetzner server, as it can be difficult to get your server’s public IP address directly.

Step-by-Step Troubleshooting Guide

To resolve this issue, follow these steps:

• Check Your Server Configuration: Ensure that your Solana server has the necessary firewall rules set up to allow incoming connections from other machines.

• Verify Network Connectivity

  : Check your server’s network connection by running ip addr or dig +short 8.8.8.8 to see if the router is functioning correctly.

• Check IP Address Assignment: Verify that your Hetzner server has a public IP address assigned through your account settings or DNS configurations.

• Use the curl Command: Try using the curl command to get the validator’s public IP address: curl -I localhost:8555

• Verify RPC Node Configuration: Check your Solana RPC node configuration file (solana.config.json) for any typos or incorrect settings that may be preventing the connection.

• Check Firewall Rules: Verify that firewall rules are not blocking the incoming connections from other machines.

Potential Solutions

If none of these steps resolve the issue, here are some potential solutions to consider:

• Check with your Hetzner server administrator for any IP address issues or configuration problems.

• Try using a different RPC node connection method, such as instead ofcurl`.

• Verify that the Solana client is configured correctly and not causing any conflicts with the RPC node.

Conclusion

In conclusion, getting the validator’s public IP address can be a challenging issue when setting up an RPC node on a rented Hetzner server. By following these steps and troubleshooting guide, you should be able to resolve the issue and establish a successful connection to your Solana RPC node. If the problem persists, don’t hesitate to reach out to Hetzner’s support team or seek further assistance from the Solana community.

Additional Resources

• [Anza Documentation: RPC Node Connection](

• [Hetzner Server Documentation: Firewall Rules](

• [Solana Client Documentation: RPC Node Configuration](