z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

inetd daemon
Usage notes
1. Buffer sizes should only be specified if the documentation for the daemon being
specified in the inetd.conf statement calls for something other than the default.
2. The configuration file is field-sensitive, but not column-sensitive. Fields should
be arranged in the order shown in Table 13. Continuation lines for an entry must
begin with a space or tab. Each entry must contain all fields. The inetd daemon
uses the configuration file entry to properly set up the environment expected by
the server. Specifying an incorrect value for one or more of the parameters is
likely to cause the server to fail.
Table 13. Fields in the Configuration File (inetd daemon)
[ip_address:]service_name ip_address is a local IP, followed by a colon. If specified, the address is used
instead of INADDR_ANY or the current default. To specifically request
INADDR_ANY, use ″*:″. If ip_address (or a colon) is specified, without any
other entries on the line, it becomes the default for subsequent lines until a
new default is specified. service_name is a well-known service name such
as login or shell. The name and protocol specified must match one of the
server names defined in /etc/services. For more information on
/etc/services, see z/OS Communications Server: IP Configuration
Reference. and z/OS Communications Server: New Function Summary
socket_type Stream or dgram
protocol[,sndbuf=n][,rcvbuf=n] protocol can be tcp or udp, or (for IPv6) tcp6 or udp6. tcp4 and udp4 can
also be specified to explicitly request IPv4. The protocol is used to further
qualify the service name. Both the service name and the protocol should
match an entry in /etc/services, except that, the ″4″ or the ″6″ should not
be included in the /etc/services entry. For more information on
/etc/services, see z/OS Communications Server: IP Configuration
Reference and z/OS Communications Server: New Function Summary. Note
that, if tcp6 or udp6 is specified, the socket will support IPv6 (that is,
AF_INET6 will be used.)
sndbuf and rcvbuf specify the size of the send and receive buffers. The size
may be in bytes, or a ″k″ or ″m″ may be added to indicate kilobytes or
megabytes respectively. sndbug and rcvbuf can be used in either order.
wait_flag [.max] Wait or nowait. Wait indicates the daemon is single-threaded and another
request will not be serviced until the first one completes.
314 z/OS V1R9.0 UNIX System Services Command Reference
If nowait is specified, the inet daemon issues an accept when a connect
request is received on a stream socket. If wait is specified, the inet daemon
does not issue the accept. It is the responsibility of the server to issue the
accept if this is a stream socket.
max is the maximum number of users allowed to request service in a 60
second interval. Default is 40. If exceeded, the service’s port is shut down.