DFSD(8N)                COMMAND REFERENCE                DFSD(8N)



NAME
     dfsd - Distributed File System Daemon

SYNOPSIS
     /etc/dfsd [ -r ][ -p port number ]

DESCRIPTION
     Dfsd is the daemon for the Distributed File System.  It
     receives system call commands (like open, close, read,
     write, etc.) from the operating system on a remote host, and
     executes them on the local system.  When dfsd receives a
     request it spawns a child process to handle it.  The child
     checks the access permission database (see access(5n) for
     the format of that file) and if the access is permitted,
     sets up the umask as set on the requesting host, the
     groupids as permitted for the remote user on the local host
     (in /etc/group) and the effective and real userids as
     received from the remote host.  The child then executes the
     appropriate system call and returns the result to the
     requesting kernel (which in turn passes the response to the
     requesting process).  The only exception to this approach is
     for the execve(2) system call.  In that case the daemon
     copies the file to be exec'd back to the requesting host.
     The file is then executed on the requesting host.

     Access permission is based on userid, not username, so the
     userid on the remote system must match the userid of the
     username in /usr/lib/dfs/access.

     The daemon is started automatically whenever the workstation
     is rebooted.  Initially the workstation owner will be
     prompted by netconfig(8n) to enable or disable the
     Distributed File System.  If the response is affirmative,
     dfsd will be started by the rc.net file whenever the system
     is rebooted.  Netconfig records if it should start up dfsd
     in the file /etc/network.conf.

     Dfsd (as well as other network daemons) logs its errors in
     /usr/adm/syslog.

OPTIONS
     -r  Reuse address the dfs address.  Normally, the daemon
         will not run if any dfs ports are open (to keep from
         running two daemon's at once).  But if the daemon needs
         to be restarted, and some outstanding connections are
         still open, the -r flag can be used to overide this
         check.

     -pport
         Normally dfsd listens on the port defined in
         /etc/services. This default may be overwritten by
         specifying an alternate port number.  However,  to



Printed 10/17/86                                                1

DFSD(8N)                COMMAND REFERENCE                DFSD(8N)



         change the port number used by the kernel to establish
         remote connections, the kernel must be patched.

RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [USAGE]        Incorrect command line syntax. Execution
                    terminated.

     [NP_ERR]       An error occurred that was not a system
                    error.  Execution terminated.

     [P_ERR]        A system error occurred. Execution
                    terminated.  See intro(2) for more
                    information on system errors.

SEE ALSO
     access(5n), syslog(8).





































Printed 10/17/86                                                2

%%index%%
na:72,73;
sy:145,196;
de:341,2171;
op:2512,645;3301,122;
rv:3423,511;
se:3934,143;
%%index%%000000000116