Tagged Questions

Related to the TCP/IP protocol.

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1answer
83 views

What is the function of the payload_checksum field in the Bitcoin protocol

According to the protocol specification at the Bitcoin wiki, each message header includes the first 4 bytes of sha256(sha256(payload) as a packet checksum. I suppose this checksum is used for packet ...
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2answers
523 views

Bitcoin client two-way communication

When client A opens a connection to client B, it opens its TCP connection to second client's port 8333. Is this connection solely used for A's queries and B's answers to A's query, or can B also query ...
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1answer
302 views

Bitcoin initial communication diagram

I'm trying to understand how exactly does the Bitcoin client communicate initially with another client, as I'm making my own client and learning new things about TCP protocol. As I understand, the ...
3
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1answer
187 views

Can a Bitcoin node send messages to a program on the same machine?

I`m currently programming some TCP communication in my custom Bitcoin client. I am wondering if it is possible for the official client to communicate with it if they are sitting on the same machine? ...