Ethereum network status monitor

Malicious actors could access your node to bring down your system or steal your funds if you're using your client as a wallet. A way around this is to prevent potentially harmful RPC methods from being modifiable. For example, with Geth, you can declare modifiable methods with a flag: --http. Access to the RPC interface can be extended through the development of edge layer APIs or web server applications, like Nginx, and connecting them to your client's local address and port.

Leveraging a middle layer can also allow developers the ability to setup a certificate for secure https connections to the RPC interface. Another privacy-preserving way to set up a publicly reachable endpoint is to host the node on your own Tor onion service. This will let you reach the RPC outside your local network without a static public IP address or opened ports.

However, using this configuration may only allow the RPC endpoint to be accessible via the Tor network which is not supported by all the applications and might result in connection issues. To do this, you have to create your own onion service. Checkout the documentation on onion service setup to host your own.

Lastly, and one of the most popular ways to provide access to internal networks is through a VPN connection. Depending on your use case and the quantity of users needing access to your node, a secure VPN connection might be an option. Operating the node You should regularly monitor your node to make sure it's running properly. You may need to do occasional maintenance. Keeping a node online Your node doesn't have to be online all the time, but you should keep it online as much as possible to keep it in sync with the network.

You can shut it down to restart it, but keep in mind that: Shutting down can take a few minutes if the recent state is still being written on disk. Forced shut downs can damage the database requiring you to resync the entire node. Your client will go out of sync with the network and will need to resync when you restart it. While the node can begin syncing from were it was last shutdown, the process can take time depending on how long it has been offline.

This doesn't apply on consensus layer validator nodes. Taking your node offline will affect all services dependent on it. If you are running a node for staking purposes you should try to minimize downtime as much as possible. Creating client services Consider creating a service to run your clients automatically on startup. For example, on Linux servers, good practice would be to create a service, e.

Updating clients You need to keep your client software up-to-date with the latest security patches, features, and EIPs. Especially before hard forks , make sure you are running the correct client versions. Before important network updates, EF publishes a post on its blog. You can subscribe to these announcements to get a notification to your mail when your node needs an update. Updating clients is very simple. Each client has specific instructions in their documentation, but the process is generally just to download the latest version and restart the client with the new executable.

The client should pick up where it left off, but with the updates applied. Your node verifies all the transactions and blocks against consensus rules by itself. You can use an Ethereum wallet with your own node.

You can use dapps more securely and privately because you won't have to leak your addresses and balances to random nodes. Everything can be checked with your own client. You can run and self-host other services which depend on data from Ethereum. For example, this might be a Beacon Chain validator, software like layer 2, infrastructure, block explorers, payment processors, etc.

You can provide your own custom RPC endpoints. Publicly for the community or even privately hosted Ethereum endpoint enables people to use your node and avoid big centralized providers. You can connect to your node using Inter-process Communications IPC or rewrite the node to load your program as a plugin. This grants low latency, which helps a lot, e.

You can directly stake ETH to secure the network and earn rewards. See solo staking to get started. This provides extra security in the network because if all the nodes were light nodes, which don't do full verification, validators could attack the network. In case of an attack which overcomes the crypto-economic defenses of proof-of-stake , a social recovery can be performed by full nodes choosing to follow the honest chain. More nodes in the network result in a more diverse and robust network, the ultimate goal of decentralization, which enables a censorship-resistant and reliable system.

They provide access to blockchain data for lightweight clients that depend on it. In high peaks of usage, there need to be enough full nodes to help light nodes sync. Light nodes don't store the whole blockchain, instead they verify data via the state roots in block headers.

They can request more information from blocks if they need it. If you run a full node, the whole Ethereum network benefits from it. Running your own node Interested in running your own Ethereum client? For a beginner-friendly introduction visit our run a node page to learn more. If you're more of a technical user, dive into more details and options on how to spin up your own node. Alternatively, ArchiveNode is a community-funded Archive node that hopes to bring archive data on the Ethereum blockchain to independent developers who otherwise couldn't afford it.

For an overview of using these services, check out nodes as a service. If somebody runs an Ethereum node with a public API in your community, you can point your light wallets like MetaMask to a community node via Custom RPC and gain more privacy than with some random trusted third party. On the other hand, if you run a client, you can share it with your friends who might need it. Execution clients formerly 'Eth1 clients' The Ethereum community maintains multiple open-source execution clients previously known as 'Eth1 clients', or just 'Ethereum clients' , developed by different teams using different programming languages.

This makes the network stronger and more diverse. The ideal goal is to achieve diversity without any client dominating to reduce any single points of failure. This table summarizes the different clients.

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