1 .\" $Id: kpasswdd.8,v 1.8 2003/02/04 21:48:01 lha Exp $
8 .Nd Kerberos 5 password changing server
11 .Op Fl -check-library= Ns Ar library
12 .Op Fl -check-function= Ns Ar function
13 .Oo Fl k Ar kspec \*(Ba Xo
14 .Fl -keytab= Ns Ar kspec
17 .Oo Fl r Ar realm \*(Ba Xo
18 .Fl -realm= Ns Ar realm
21 .Oo Fl p Ar string \*(Ba Xo
22 .Fl -port= Ns Ar string
29 serves request for password changes. It listens on UDP port 464
30 (service kpasswd) and processes requests when they arrive. It changes
31 the database directly and should thus only run on the master KDC.
36 .Fl -check-library= Ns Ar library
38 If your system has support for dynamic loading of shared libraries,
39 you can use an external function to check password quality. This
40 option specifies which library to load.
42 .Fl -check-function= Ns Ar function
44 This is the function to call in the loaded library. The function
45 should look like this:
48 .Fn passwd_check "krb5_context context" "krb5_principal principal" "krb5_data *password"
51 is an initialized context;
53 is the one who tries to change passwords, and
55 is the new password. Note that the password (in
57 is not zero terminated.
60 .Fl -keytab= Ns Ar kspec
62 Keytab to get authentication key from
65 .Fl -realm= Ns Ar realm
70 .Fl -port= Ns Ar string
72 Port to listen on (default service kpasswd - 464).
75 If an error occurs, the error message is returned to the user and/or
78 The default password quality checks are too basic.