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.\" Copyright (c) 2008 Isilon Inc http://www.isilon.com/ .\" Authors: Doug Rabson <dfr@rabson.org> .\" Developed with Red Inc: Alfred Perlstein <alfred@FreeBSD.org> .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD$ .\" .Dd April 10 2020 .Dt GSSD 8 .Os .Sh NAME .Nm gssd .Nd "Generic Security Services Daemon" .Sh SYNOPSIS .Nm .Op Fl d .Op Fl h .Op Fl v .Op Fl s Ar dir-list .Op Fl c Ar file-substring .Op Fl r Ar preferred-realm .Sh DESCRIPTION The .Nm program provides support for the kernel GSS-API implementation. .Pp The options are as follows: .Bl -tag -width indent .It Fl d Run in debug mode. In this mode, .Nm will not fork when it starts. .It Fl h Enable support for host-based initiator credentials. This permits a kerberized NFS mount to use a service principal in the default Kerberos 5 keytab file for access. Such access is enabled via the gssname option for the .Xr mount_nfs 8 command. .It Fl v Run in verbose mode. In this mode, .Nm will log activity messages to syslog using LOG_INFO | LOG_DAEMON or to stderr, if the .Fl d option has also been specified. The minor status is logged as a decimal number, since it is actually a Kerberos return status, which is signed. .It Fl s Ar dir-list Look for an appropriate credential cache file in this list of directories. The list should be full pathnames from root, separated by ':' characters. Usually this list will simply be "/tmp". Without this option, .Nm assumes that the credential cache file is called /tmp/krb5cc_<uid>, where <uid> is the effective uid for the RPC caller. .It Fl c Ar file-substring Set a file-substring for the credential cache file names. Only files with this substring embedded in their names will be selected as candidates when .Fl s has been specified. If not specified, it defaults to "krb5cc_". .It Fl r Ar preferred-realm Use Kerberos credentials for this realm when searching for credentials in directories specified with .Fl s . If not specified, the default Kerberos realm will be used. .El .Sh FILES .Bl -tag -width ".Pa /etc/krb5.keytab" -compact .It Pa /etc/krb5.keytab Contains Kerberos service principals which may be used as credentials by kernel GSS-API services. .El .Sh EXIT STATUS .Ex -std .Sh SEE ALSO .Xr gssapi 3 , .Xr syslog 3 , .Xr mount_nfs 8 .Sh HISTORY The .Nm manual page first appeared in .Fx 8.0 . .Sh AUTHORS This manual page was written by .An Doug Rabson Aq Mt dfr@FreeBSD.org .
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