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39 .Nd Kerberos 5 password changing server
43 .Op Fl Fl addresses= Ns Ar address
44 .Op Fl Fl check-library= Ns Ar library
45 .Op Fl Fl check-function= Ns Ar function
46 .Oo Fl k Ar kspec \*(Ba Xo
47 .Fl Fl keytab= Ns Ar kspec
50 .Oo Fl r Ar realm \*(Ba Xo
51 .Fl Fl realm= Ns Ar realm
54 .Oo Fl p Ar string \*(Ba Xo
55 .Fl Fl port= Ns Ar string
63 serves request for password changes. It listens on UDP port 464
64 (service kpasswd) and processes requests when they arrive. It changes
65 the database directly and should thus only run on the master KDC.
69 .It Fl Fl addresses= Ns Ar address
70 For each till the argument is given, add the address to what kpasswdd
72 .It Fl Fl check-library= Ns Ar library
73 If your system has support for dynamic loading of shared libraries,
74 you can use an external function to check password quality. This
75 option specifies which library to load.
76 .It Fl Fl check-function= Ns Ar function
77 This is the function to call in the loaded library. The function
78 should look like this:
81 .Fn passwd_check "krb5_context context" "krb5_principal principal" "krb5_data *password"
84 is an initialized context;
86 is the one who tries to change passwords, and
88 is the new password. Note that the password (in
90 is not zero terminated.
91 .It Fl k Ar kspec , Fl Fl keytab= Ns Ar kspec
92 Keytab to get authentication key from.
93 .It Fl r Ar realm , Fl Fl realm= Ns Ar realm
95 .It Fl p Ar string , Fl Fl port= Ns Ar string
96 Port to listen on (default service kpasswd - 464).
99 If an error occurs, the error message is returned to the user and/or
102 The default password quality checks are too basic.