1.\" Copyright (c) 1997, 2000 - 2005 Kungliga Tekniska Högskolan 2.\" (Royal Institute of Technology, Stockholm, Sweden). 3.\" All rights reserved. 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.\" 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" 3. Neither the name of the Institute nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.Dd April 19, 1999 33.Dt KPASSWDD 8 34.Os HEIMDAL 35.Sh NAME 36.Nm kpasswdd 37.Nd Kerberos 5 password changing server 38.Sh SYNOPSIS 39.Nm 40.Bk -words 41.Op Fl Fl addresses= Ns Ar address 42.Op Fl Fl check-library= Ns Ar library 43.Op Fl Fl check-function= Ns Ar function 44.Oo Fl k Ar kspec \*(Ba Xo 45.Fl Fl keytab= Ns Ar kspec 46.Xc 47.Oc 48.Oo Fl r Ar realm \*(Ba Xo 49.Fl Fl realm= Ns Ar realm 50.Xc 51.Oc 52.Oo Fl p Ar string \*(Ba Xo 53.Fl Fl port= Ns Ar string 54.Xc 55.Oc 56.Op Fl Fl version 57.Op Fl Fl help 58.Ek 59.Sh DESCRIPTION 60.Nm 61serves request for password changes. It listens on UDP port 464 62(service kpasswd) and processes requests when they arrive. It changes 63the database directly and should thus only run on the master KDC. 64.Pp 65Supported options: 66.Bl -tag -width Ds 67.It Fl Fl addresses= Ns Ar address 68For each till the argument is given, add the address to what kpasswdd 69should listen too. 70.It Fl Fl check-library= Ns Ar library 71If your system has support for dynamic loading of shared libraries, 72you can use an external function to check password quality. This 73option specifies which library to load. 74.It Fl Fl check-function= Ns Ar function 75This is the function to call in the loaded library. The function 76should look like this: 77.Pp 78.Ft const char * 79.Fn passwd_check "krb5_context context" "krb5_principal principal" "krb5_data *password" 80.Pp 81.Fa context 82is an initialized context; 83.Fa principal 84is the one who tries to change passwords, and 85.Fa password 86is the new password. Note that the password (in 87.Fa password->data ) 88is not zero terminated. 89.It Fl k Ar kspec , Fl Fl keytab= Ns Ar kspec 90Keytab to get authentication key from. 91.It Fl r Ar realm , Fl Fl realm= Ns Ar realm 92Default realm. 93.It Fl p Ar string , Fl Fl port= Ns Ar string 94Port to listen on (default service kpasswd - 464). 95.El 96.Sh DIAGNOSTICS 97If an error occurs, the error message is returned to the user and/or 98logged to syslog. 99.Sh BUGS 100The default password quality checks are too basic. 101.Sh SEE ALSO 102.Xr kpasswd 1 , 103.Xr kdc 8 104.\".Sh ENVIRONMENT 105.\".Sh FILES 106.\".Sh EXAMPLES 107.\".Sh SEE ALSO 108.\".Sh STANDARDS 109.\".Sh HISTORY 110.\".Sh AUTHORS 111