واژهنامه
TCP (Transmission Control Protocol)
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TCP (Transmission Control Protocol) is one of the core internet protocols. It delivers data between two computers reliably and in the right order: lost packets are sent again, and the receiver puts everything back in sequence.
How a connection works
Before sending data, the two sides open a connection with a three-step handshake. After that, data flows both ways until one side closes the connection or it times out.
TCP and mining
Miners connect to a pool over TCP using the Stratum protocol. The connection stays open the whole time the miner works: the pool sends jobs, the miner sends back shares.
Typical network problems on the miner's side:
- Timeouts and dropped connections — an unstable internet connection, Wi-Fi or a mobile modem.
- Packet loss and high latency — shares arrive late and become stale.
- Blocked ports — some providers, firewalls and antiviruses block uncommon ports; SSL or another port may help.
