When your node starts for the first time, it needs to discover peers. INTcoin uses several methods, in order of priority.
DNS Seeds
The node queries DNS seed servers to find active peers:
Mainnet: uk.international-coin.org, eu.international-coin.org, us.international-coin.org
Testnet: uktest.international-coin.org, eutest.international-coin.org, ustest.international-coin.org
Signet: uksig.international-coin.org, eusig.international-coin.org, ussig.international-coin.org
This is automatic — no configuration needed.
Hardcoded Seeds
If DNS fails (firewalled, censored, or your resolver is broken), the node falls back to hardcoded IP addresses compiled into the binary. These are the project’s infrastructure nodes across three continents.
Manual Peer Addition
To add specific peers:
# In intcoin.conf
addnode=51.155.97.192:2210
addnode=82.165.126.194:2210
addnode=74.208.48.149:2210
Or via RPC:
intcoin-cli addnode "51.155.97.192:2210" "add"
Privacy Network Peers
INTcoin nodes are also reachable via Tor and I2P. Onion and I2P destination addresses are listed in the wiki. Your node will automatically discover and connect to privacy network peers if Tor or I2P is enabled.
Checking Your Connections
# How many peers?
intcoin-cli getconnectioncount
# Detailed peer info
intcoin-cli getpeerinfo
# Network overview
intcoin-cli getnetworkinfo
A healthy node typically has 8 outbound connections and accepts inbound connections up to the maxconnections limit (default: 125).
Inbound Connections
To accept inbound connections, port 2210 (mainnet) must be reachable from the internet. INTcoin supports automatic port forwarding via PCP/NAT-PMP if your router supports it.
If automatic forwarding doesn’t work, manually forward TCP port 2210 to your node’s LAN IP in your router settings.
You can check your NAT status in the Qt wallet by clicking the connection icon in the status bar.
Firewall Note
Only the P2P port needs to be open to the internet. Never expose the RPC port (2211) to the internet. RPC should be bound to localhost or your LAN only.