Quote from: fubly on February 12, 2019, 01:59:23 PM

what is the best number of connections today?

I discovered a setting: "maxconnections" inside bitcoin.conf / bitcoind -help also.

I tried 2000 but at startup, I get a message that a maximum of 845 by hardware limitations is only possible.

even if this is a very old thread you pumed up

Nice to read Satoshi.

To answer: The limitation is based on the file descriptors on your system:
nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS - MAX_ADDNODE_CONNECTIONS, nMaxConnections);

so if you can tune your OS you can do more than your 845.
look here the warning from Pieter Wuilli: https://bitcoin.stackexchange.com/questions/8109/how-does-one-attain-1-000-connections-like-blockchain-info/8140#8140

Quote

Bitcoin by default will not make more than 8 outgoing connections, and -maxconnections only controls how many incoming connections you allow. Feel free to set this higher, but it will take time before others connect to you in large numbers.

Please don't change this, as there is no need. Connectable peers on the network are a scarce resource, and essential to the decentralization. If people go try connect to all of them like some sites do, we'll very quickly run out.