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svcgssd(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | CONFIGURATION FILE | SEE ALSO | AUTHORS | COLOPHON 

rpc.svcgssd(8)           System Manager's Manual           rpc.svcgssd(8)

NAME         top

       rpc.svcgssd - server-side rpcsec_gss daemon

SYNOPSIS         top

       rpc.svcgssd [-n] [-v] [-r] [-i] [-f] [-p principal]

DESCRIPTION         top

       The rpcsec_gss protocol gives a means of using the gss-api generic
       security api to provide security for protocols using rpc (in
       particular, nfs).  Before exchanging any rpc requests using
       rpcsec_gss, the rpc client must first establish a security context
       with the rpc server.  The linux kernel's implementation of
       rpcsec_gss depends on the userspace daemon rpc.svcgssd to handle
       context establishment on the rpc server.  The daemon uses files in
       the proc filesystem to communicate with the kernel.

OPTIONS         top

       -f     Runs rpc.svcgssd in the foreground and sends output to
              stderr (as opposed to syslogd)

       -v     Increases the verbosity of the output (can be specified
              multiple times).

       -r     If the rpcsec_gss library supports setting debug level,
              increases the verbosity of the output (can be specified
              multiple times).

       -i     If the nfsidmap library supports setting debug level,
              increases the verbosity of the output (can be specified
              multiple times).

       -p     Use principal instead of the default nfs/FQDN@REALM.

       -n     Use the system default credentials (host/FQDN@REALM) rather
              than the default nfs/FQDN@REALM.

CONFIGURATION FILE         top

       Some of the options that can be set on the command line can also
       be controlled through values set in the [svcgssd] section of the
       /etc/nfs.conf configuration file.  Values recognized include:

       principal
              If set to system this is equivalent to the -n option.  If
              set to any other value, that is used like the -p option.

       verbosity
              Value which is equivalent to the number of -v.

       rpc-verbosity
              Value which is equivalent to the number of -r.

       idmap-verbosity
              Value which is equivalent to the number of -i.

SEE ALSO         top

       rpc.gssd(8),

AUTHORS         top

       Dug Song <dugsong@umich.edu>
       Andy Adamson <andros@umich.edu>
       Marius Aamodt Eriksen <marius@umich.edu>
       J. Bruce Fields <bfields@umich.edu>

COLOPHON         top

       This page is part of the nfs-utils (NFS utilities) project.
       Information about the project can be found at 
       ⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩.  If you have a bug
       report for this manual page, see
       ⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨git://git.linux-nfs.org/projects/steved/nfs-utils.git⟩ on
       2025-08-11.  (At that time, the date of the most recent commit
       that was found in the repository was 2025-06-27.)  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page,
       or you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a
       mail to man-pages@man7.org

                               12 Jan 2007                 rpc.svcgssd(8)

Pages that refer to this page: nfs(5),  nfs.conf(5),  gssd(8)

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