1.\" Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 2.\" Authors: Doug Rabson <dfr@rabson.org> 3.\" Developed with Red Inc: Alfred Perlstein <alfred@FreeBSD.org> 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd April 10 2020 29.Dt GSSD 8 30.Os 31.Sh NAME 32.Nm gssd 33.Nd "Generic Security Services Daemon" 34.Sh SYNOPSIS 35.Nm 36.Op Fl d 37.Op Fl h 38.Op Fl v 39.Op Fl s Ar dir-list 40.Op Fl c Ar file-substring 41.Op Fl r Ar preferred-realm 42.Sh DESCRIPTION 43The 44.Nm 45program provides support for the kernel GSS-API implementation. 46.Pp 47The options are as follows: 48.Bl -tag -width indent 49.It Fl d 50Run in debug mode. 51In this mode, 52.Nm 53will not fork when it starts. 54.It Fl h 55Enable support for host-based initiator credentials. 56This permits a kerberized NFS mount to use a service principal in 57the default Kerberos 5 keytab file for access. 58Such access is enabled via the 59gssname 60option for the 61.Xr mount_nfs 8 62command. 63.It Fl v 64Run in verbose mode. 65In this mode, 66.Nm 67will log activity messages to syslog using LOG_INFO | LOG_DAEMON or to 68stderr, if the 69.Fl d 70option has also been specified. 71The minor status is logged as a decimal number, since it is actually a 72Kerberos return status, which is signed. 73.It Fl s Ar dir-list 74Look for an appropriate credential cache file in this list of directories. 75The list should be full pathnames from root, separated by ':' characters. 76Usually this list will simply be "/tmp". 77Without this option, 78.Nm 79assumes that the credential cache file is called /tmp/krb5cc_<uid>, 80where <uid> is the effective uid for the RPC caller. 81.It Fl c Ar file-substring 82Set a file-substring for the credential cache file names. 83Only files with this substring embedded in their names will be 84selected as candidates when 85.Fl s 86has been specified. 87If not specified, it defaults to "krb5cc_". 88.It Fl r Ar preferred-realm 89Use Kerberos credentials for this realm when searching for 90credentials in directories specified with 91.Fl s . 92If not specified, the default Kerberos realm will be used. 93.El 94.Sh FILES 95.Bl -tag -width ".Pa /etc/krb5.keytab" -compact 96.It Pa /etc/krb5.keytab 97Contains Kerberos service principals which may be used as credentials 98by kernel GSS-API services. 99.El 100.Sh EXIT STATUS 101.Ex -std 102.Sh SEE ALSO 103.Xr gssapi 3 , 104.Xr syslog 3 , 105.Xr mount_nfs 8 106.Sh HISTORY 107The 108.Nm 109manual page first appeared in 110.Fx 8.0 . 111.Sh AUTHORS 112This 113manual page was written by 114.An Doug Rabson Aq Mt dfr@FreeBSD.org . 115