How to add a static node to private ethereum network

Question

I want to add a static node to the network that will get reconnected automatically whenever disconnected. How to do this?

Answer 1

There are two ways to do this.

1. Configuring permanent static nodes by adding the below entry to <datadir>/static-nodes.json file:

[
      "enode://f4642fa65af50cfdea8fa7414a5def7bb7991478b768e296f5e4a54e8b995de102e0ceae2e826f293c481b5325f89be6d207b003382e18a8ecba66fbaf6416c0@33.4.2.1:30303",
      "enode://pubkey@ip:port"
]

2. Run this command in the geth console:

> admin.addPeer("enode://f4642fa65af50cfdea8fa7414a5def7bb7991478b768e296f5e4a54e8b995de102e0ceae2e826f293c481b5325f89be6d207b003382e18a8ecba66fbaf6416c0@33.4.2.1:30303")

Note:  Replace the enode ID with your enode ID