a problem about /etc/inet.conf

[lin.chen]

vi /etc/inetd.conf
ftp stream tcp nowait root /usr/lbin/ftpd ftpd -t75

I know the stream is "socket type",but what does "socket type" mean,how can I decide the type for a certain service.
i know there three kinds of "socket type",stream, dgram, or xti,what is the difference?

[Peter Godron]

Hi,
"man socket"
and
http://en.wikipedia.org/wiki/Inetd

should provide at least some of the answers.

[lin.chen]

sorry I can not access the site you provided.

[Peter Godron · Accepted solution]

Hi,
the website is more or less a simplified version of the man inetd, with additional information being example of how to set up an inetd service in C.

The basic difference is the way the transport layer is used and how the system recognizes the information arriving at the socket.