Provided by: krb5-kdc_1.10+dfsg~beta1-2_i386 bug


       krb5kdc - Kerberos V5 KDC


       krb5kdc  [  -x db_args ] [ -d dbname ] [ -k keytype ] [ -M mkeyname ] [
       -p portnum ] [ -m ] [ -r realm ] [ -n ] [ -w numworkers ] [ -P pid_file


       krb5kdc  is  the  Kerberos  version  5  Authentication  Service and Key
       Distribution Center (AS/KDC).

       The -x db_args option specifies the database specific arguments.

       Options supported for LDAP database are:

               -x nconns=<number_of_connections>
               specifies the number of connections to be maintained  per  LDAP

               -x host=<ldapuri>
               specifies the LDAP server to connect to by a LDAP URI.

               -x binddn=<binddn>
               specifies  the  DN of the object used by the KDC server to bind
               to the LDAP server.  This object should have the rights to read
               the  realm  container, principal container and the subtree that
               is referenced by the realm.

               -x bindpwd=<bind_password>
               specifies the password for the above mentioned  binddn.  It  is
               recommended  not to use this option.  Instead, the password can
               be stashed using the stashsrvpw command of kdb5_ldap_util.

       The -r realm option specifies the realm for  which  the  server  should
       provide     service;    by    default    the    realm    returned    by
       krb5_default_local_realm(3) is used.

       The -d dbname option specifies  the  name  under  which  the  principal
       database  can be found; by default the database is in DEFAULT_DBM_FILE.
       This option does not apply to the LDAP database.

       The -k keytype option specifies the key type of the master  key  to  be
       entered  manually  as  a  password  when  -m  is  given; the default is

       The -M mkeyname option specifies the principal name for the master  key
       in  the  database; the default is KRB5_KDB_M_NAME (usually "K/M" in the
       KDC's realm).

       The -p portnum option specifies the default UDP port number  which  the
       KDC  should  listen  on for Kerberos version 5 requests.  This value is
       used when no port is specified in the KDC profile and when no  port  is
       specified   in  the  Kerberos  configuration  file.   If  no  value  is
       available, then the value in /etc/services for  service  "kerberos"  is

       The  -m  option  specifies  that the master database password should be
       fetched from the keyboard rather than from a file on disk.

       The -n option specifies that  the  KDC  does  not  put  itself  in  the
       background  and  does  not  disassociate  itself from the terminal.  In
       normal operation, you should always allow the KDC to  place  itself  in
       the background.

       The  -w numworkers option tells the KDC to fork numworkers processes to
       listen to the KDC ports and process  requests  in  parallel.   The  top
       level  KDC  process  (whose  pid  is recorded in the pid file if the -P
       option is also given) acts as a supervisor.  The supervisor will  relay
       SIGHUP  signals  to  the  worker  subprocesses,  and will terminate the
       worker subprocess if the it is itself terminated or if any other worker
       process  exits.   NOTE:  on operating systems which do not have pktinfo
       support, using worker processes will prevent the KDC from listening for
       UDP packets on network interfaces created after the KDC starts.

       The  -P  pid_file  option tells the KDC to write its PID (followed by a
       newline) into pid_file after  it  starts  up.   This  can  be  used  to
       identify  whether the KDC is still running and to allow init scripts to
       stop the correct process.

       The KDC may service requests for multiple realms (maximum  32  realms).
       The  realms are listed on the command line.  Per-realm options that can
       be specified on the command line pertain for each realm that follows it
       and  are  superseded by subsequent definitions of the same option.  For

       krb5kdc -p 2001 -r REALM1 -p 2002 -r REALM2 -r REALM3

       specifies that the KDC listen on port 2001 for REALM1 and on port  2002
       for  REALM2  and  REALM3.   Additionally,  per-realm  parameters may be
       specified in the kdc.conf file.  The  location  of  this  file  may  be
       specified  by  the  KRB5_KDC_PROFILE  environment variable.  Parameters
       specified in this file take precedence over options  specified  on  the
       command line.  See the kdc.conf(5) description for further details.


       krb5(3), kdb5_util(8), kdc.conf(5), kdb5_ldap_util(8)


       It  should fork and go into the background when it finishes reading the
       master password from the terminal.