List of currently operational QOTD servers

Currently operational QOTD servers

URI	TCP Port	UDP Port	IPv4	IPv6	Change Rate
nicksosinski.com	17	17	Yes	No	Each Request
cygnus-x.net	17	N/A	Yes	No	Unknown (Not Each Request)
djxmmx.net	17	17	Yes	Yes	Each Request
alpha.mike-r.com	17	N/A	Yes	No	Each Request
ziaspace.com	17	N/A	Yes	Yes	Each Request

用法： telnet server 17
解釋：

Network Working Group                                          J. Postel
Request for Comments: 865                                            ISI
                                                                May 1983



                       Quote of the Day Protocol




This RFC specifies a standard for the ARPA Internet community.  Hosts on
the ARPA Internet that choose to implement a Quote of the Day Protocol
are expected to adopt and implement this standard.

A useful debugging and measurement tool is a quote of the day service.
A quote of the day service simply sends a short message without regard
to the input.

TCP Based Character Generator Service

   One quote of the day service is defined as a connection based
   application on TCP.  A server listens for TCP connections on TCP port
   17.  Once a connection is established a short message is sent out the
   connection (and any data received is thrown away).  The service
   closes the connection after sending the quote.

UDP Based Character Generator Service

   Another quote of the day service is defined as a datagram based
   application on UDP.  A server listens for UDP datagrams on UDP port
   17.  When a datagram is received, an answering datagram is sent
   containing a quote (the data in the received datagram is ignored).

Quote Syntax

   There is no specific syntax for the quote.  It is recommended that it
   be limited to the ASCII printing characters, space, carriage return,
   and line feed.  The quote may be just one or up to several lines, but
   it should be less than 512 characters.