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

Error setting up RPC node connection: Unable to determine validator public IP

As a Solana developer, you are probably no stranger to the challenges of setting up a remote server for testing and development. One common issue that can arise when using a Hetzner server is connecting to an RPC node. In this article, we will explore the “Unable to determine validator public IP” error and explore possible solutions.

Problem: Unable to determine validator public IP

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

Step-by-step troubleshooting guide

To resolve this issue, follow these steps:

• Check your server configuration: Make sure your Solana server has the necessary firewall rules set up to allow incoming connections from other machines.

• Check Network Connectivity: Check your server’s network connectivity by running ip addr or dig +short 8.8.8.8 to see if your router is working properly.

• Check IP Address Assignment

  : Check if your Hetzner server has a public IP address assigned through your account settings or DNS configuration.

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

• Check RPC Node Configuration

  

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

• Check Firewall Rules: Make sure your firewall rules are not blocking incoming connections from other machines.

Potential Solutions

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

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

• Try using a different method to connect to the RPC node, such as instead ofcurl`.

• Make sure the Solana client is configured correctly and is not causing conflicts with the RPC node.

Conclusion

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

Additional Resources

• [Anza Documentation: RPC Node Connection](

• [Hetzner Server Documentation: Firewall Rules](

• [Solana Client Documentation: RPC Node Configuration](

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