IN.CHARGEND(1M) Maintenance Commands IN.CHARGEND(1M)


NAME


in.chargend - UDP or TCP character generator service daemon

SYNOPSIS


in.chargend


FMRI svc:/internet/chargen:default


DESCRIPTION


FMRI stands for Fault Management Resource Identifier. It is used to
identify resources managed by the Fault Manager. See fmd(1M) and smf(5).


The in.chargend service provides the server-side of the character-
generator protocol. This protocol is used for debugging and bandwidth
measurement and is available on both TCP and UDP transports, through port
19.


The in.chargend service is an inetd(1M) smf(5) delegated service. The
in.chargend detects which transport is requested by examining the socket
it is passed by the inetd daemon.

TCP-based service
Once a connection is established, the in.chargend
generates a stream of data. Any data received is
discarded. The server generates data until the
client program terminates the connection. Note that
the data flow is limited by TCP flow control
mechanisms.


UDP-based service
The in.chargend listens for UDP datagrams. When a
datagram is received, the server generates a UDP
datagram in response containing a random number of
ASCII characters (ranging from 0 to 512 characters).
Any received data is ignored.


The in.chargend data consists of a pattern of 72 character lines
containing the printable, 7-bit ASCII characters. Each line is terminated
with a carriage return and a line feed character.

ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Evolving |
+--------------------+-----------------+

SEE ALSO


inetd(1M), attributes(5), smf(5)


RFC 864


August 23, 2004 IN.CHARGEND(1M)