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6 .TH IN.CHARGEND 8 "Aug 23, 2004"
8 in.chargend \- UDP or TCP character generator service daemon
17 FMRI \fIsvc\fR:/internet/chargen:default
23 FMRI stands for Fault Management Resource Identifier. It is used to identify
24 resources managed by the Fault Manager. See \fBfmd\fR(8) and \fBsmf\fR(5).
27 The \fBin.chargend\fR service provides the server-side of the
28 character-generator protocol. This protocol is used for debugging and bandwidth
29 measurement and is available on both TCP and UDP transports, through port 19.
32 The in.chargend service is an \fBinetd\fR(8) \fBsmf\fR(5) delegated service.
33 The \fBin.chargend\fR detects which transport is requested by examining the
34 socket it is passed by the \fBinetd\fR daemon.
38 \fBTCP-based service\fR
41 Once a connection is established, the \fBin.chargend\fR generates a stream of
42 data. Any data received is discarded. The server generates data until the
43 client program terminates the connection. Note that the data flow is limited by
44 TCP flow control mechanisms.
50 \fBUDP-based service\fR
53 The \fBin.chargend\fR listens for UDP datagrams. When a datagram is received,
54 the server generates a UDP datagram in response containing a random number of
55 ASCII characters (ranging from 0 to 512 characters). Any received data is
61 The \fBin.chargend\fR data consists of a pattern of 72 character lines
62 containing the printable, 7-bit ASCII characters. Each line is terminated with
63 a carriage return and a line feed character.
67 See \fBattributes\fR(5) for descriptions of the following attributes:
75 ATTRIBUTE TYPE ATTRIBUTE VALUE
77 Interface Stability Evolving
83 \fBinetd\fR(8), \fBattributes\fR(5), \fBsmf\fR(5)