writesrv

PURPOSE

     Allows Distributed Services users to send messages to and
     receive messages from a remote system.

SYNOPSIS
     writesrv


DESCRIPTION

     The writesrv command  is a daemon that allows  users in a
     Distributed  Services  environment  to send  messages  to
     users on a remote system and receive responses from users
     on a remote system with the write command.

     The writesrv  utility receives  incoming requests  from a
     write command and creates a  server process to handle the
     request.   This  server  process  communicates  with  the
     client process (write) and provides whatever services are
     requested.

     To perform  these services, the writesrv  command creates
     an IPC queue  using the key "0x203fe".   All requests for
     service are sent  as messages to this  queue.  The server
     also creates an IPC  queue profile named IBMWRTnode where
     node is  the node id  of the local system.   This profile
     may be examined with the  ipctable command but should not
     be modified.

RELATED INFORMATION

     The commands:  "write" and "ipctable."

     The msgget,  msgctl, msgsnd,  and msgrcv system  calls in
     AIX Operating System Technical Reference.