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Support external chains


Set up your Ethereum Mainnet or Ropsten Testnet node.


Install Geth

In this guide we will be installing Geth with the built-in launchpad PPAs (Personal Package Archives) on Ubuntu. If you are on different OS, please refer to the official Documentation.

1. Enable launchpad repository
sudo add-apt-repository -y ppa:ethereum/ethereum
2. Install the latest version of go-ethereum:
sudo apt-get update
sudo apt-get install ethereum

Run geth through systemd

1. Create systemd service file

After installation of go-ethereum, we are now ready to start the geth process but in order to ensure it is running in the background and auto-restarts in case of a server failure, we will setup a service file with systemd.


Note: In the service file below you need to replace $USER and path to geth, depending on your system configuration.

sudo tee <<EOF >/dev/null /etc/systemd/system/geth.service
Description=Ethereum Node

ExecStart=/usr/bin/geth --syncmode "snap" --http --http.vhosts "*" --http.addr


If you would like to run a node on the Testnet instead (Ropsten), you need to add the --ropsten flag to the configuration above.

2. Enable and start the geth service
sudo systemctl enable geth
sudo systemctl daemon-reload
sudo systemctl start geth

If everything was set-up correctly, your Ethereum node should now be starting the process of synchronization. This will take several hours, depending on your hardware.To check the status of the running service or to follow the logs, you can use:

sudo systemctl status geth
sudo journalctl -u geth -f

Test your Ethereum RPC connection

Alternatively, you can now also use the Geth JavaScript console and check status of your node by attaching to your newly created geth.ipc. Don't forget to replace $USER and path, depending on your server configuration.

geth attach ipc:/root/.ethereum/geth.ipc

#geth attach ipc:/root/.ethereum/ropsten/geth.ipc

Once your node is fully synced, the output from above will say false. To test your Ethereum node, you can send an RPC request using cURL

curl -X POST http://localhost:8545 \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}'

If you are testing it remotely, please replace localhost with the IP or URL of your server.

EVM RPC endpoint URL

In order for Axelar Network to connect to your Ethereum node, your rpc_addr should be exposed in this format: