in.chargend(1M) System Administration Commands in.chargend(1M)NAMEin.chargend - UDP or TCP character generator service daemon
SYNOPSISin.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-gen‐
erator protocol. This protocol is used for debugging and bandwidth mea‐
surement 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 gener‐
ates 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 contain‐
ing 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 con‐
taining 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 │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWcnsu │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Evolving │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOinetd(1M), attributes(5), smf(5)
RFC 864
SunOS 5.10 23 Aug 2004 in.chargend(1M)