nncp-daemon ¶

$ nncp-daemon [options]
    [-maxconn INT] [-bind ADDR] [-ucspi]
    [-autotoss*] [-nock] [-mcd-once]
    [-yggdrasil yggdrasils://PRV[:PORT]?[bind=BIND][&pub=PUB][&peer=PEER][&mcast=REGEX[:PORT]]]

Start listening TCP daemon, wait for incoming connections and run synchronization protocol with each of them. You can run nncp-toss utility in background to process inbound packets from time to time.

-maxconn option specifies how many simultaneous clients daemon can handle. -bind option specifies addr:port it must bind to and listen (empty string means no listening on TCP port).

It could be run as UCSPI-TCP service, by specifying -ucspi option. Pay attention that because it uses stdin/stdout, it can not effectively work with IO timeouts and connection closing can propagate up to 5 minutes in practice. Example startup command:

tcpserver -DHR -l 0 ::0 uucp nncp-daemon -quiet -ucspi

Also it is some kind of backward compatible with inetd interface, just lacking knowledge or remote’s address:

uucp	stream	tcp6	nowait	nncpuser	/usr/local/bin/nncp-daemon	nncp-daemon -quiet -ucspi

-autotoss option runs tosser on node’s spool every second during the call. All -autotoss-* options is the same as in nncp-toss command.

Read more about -nock option.

-mcd-once option sends MultiCast Discovery announcements once and quits. Could be useful with inetd-based setup, where daemons are not running.

With -yggdrasil option daemon also acts as a Yggdrasil support listener daemon.