p2pool-monero/docs/I2P.MD

Running P2Pool with I2P

P2Pool has several command-line options that should be used for I2P setup:

• --socks5 IP:port to specify your I2P SOCKS proxy address (usually 127.0.0.1:4447 if you are using i2pd or followed the guide below)
• --socks5-proxy-type i2p to specify the type of SOCKS5 proxy being used
• --no-dns to disable all DNS queries and prevent DNS leaks. P2Pool only ever makes DNS requests to get a list of seed nodes, to resolve your Monero node's domain (if it's not set as an IP address), and to resolve manually added peers
• --no-upnp to disable UPnP requests (they are sent to your router, so use this option if you are not on your home network)
• --i2p-address your hidden service's .b32.i2p address (without port number). This address will be broadcast to other peers when you mine a share in P2Pool. This is to prevent address spamming - you have to mine a real share to be able to broadcast your I2P address.
  • Attention: this also links the I2P address with the Monero wallet you use for mining. Create a new I2P address when mining through I2P, don't use your existing addresses to avoid metadata leaks.
• --no-clearnet-p2p to never connect to clearnet P2Pool nodes.

Setting up I2P tunnels for P2Pool (i2pd on Linux)

Follow these instructions to install i2pd on your system. First, ensure the SOCKS proxy tunnel is enabled (as it should be by default). See here for more information.

You will need to modify some lines in the tunnels.conf file, usually located in /var/lib/i2pd/tunnels.conf on Linux. Add a server tunnel to allow inbound connections from peers:

[p2pool]
type = server
host = 127.0.0.1
port = 28723
keys = p2pool.dat

This will create a hidden service key in /var/lib/i2pd/p2pool.dat; you may want to back this up. Please note that you must use the port number shown above in order for other peers to be able to find you.

Restart i2pd:

sudo systemctl restart i2pd.service

Get the hostname of your hidden service:

curl -s http://127.0.0.1:7070/?page=i2p_tunnels | grep -Eo "[a-zA-Z0-9./?=_%:-]*" | grep "28723"

The resulting .b32.i2p address should then be used for the --i2p-address command-line parameter.

Command line example

./p2pool --host MONERO_NODE_IP --wallet YOUR_WALLET --socks5 127.0.0.1:4447 --socks5-proxy-type i2p --no-dns --no-upnp --i2p-address YOUR_I2P_ADDRESS