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+.\" $Id: ext_srvtab.8,v 1.3 1997/04/02 21:09:51 assar Exp $
+.\" Copyright 1989 by the Massachusetts Institute of Technology.
+.\"
+.\" For copying and distribution information,
+.\" please see the file <mit-copyright.h>.
+.\"
+.TH EXT_SRVTAB 8 "Kerberos Version 4.0" "MIT Project Athena"
+.SH NAME
+ext_srvtab \- extract service key files from Kerberos key distribution center database
+.SH SYNOPSIS
+ext_srvtab [
+.B \-n
+] [
+.B \-r realm
+] [
+.B hostname ...
+]
+.SH DESCRIPTION
+.I ext_srvtab
+extracts service key files from the Kerberos key distribution center
+(KDC) database.
+.PP
+Upon execution, it prompts the user to enter the master key string for
+the database.  If the
+.B \-n
+option is specified, the master key is instead fetched from the master
+key cache file.
+.PP
+For each
+.I hostname
+specified on the command line, 
+.I ext_srvtab
+creates the service key file
+.IR hostname -new-srvtab,
+containing all the entries in the database with an instance field of
+.I hostname.
+This new file contains all the keys registered for Kerberos-mediated
+service providing programs which use the 
+.IR krb_get_phost (3)
+principal and instance conventions to run on the host
+.IR hostname .
+If the
+.B \-r
+option is specified, the realm fields in the extracted file will
+match the given realm rather than the local realm.
+.SH DIAGNOSTICS
+.TP 20n
+"verify_master_key: Invalid master key, does not match database."
+The master key string entered was incorrect.
+.SH FILES
+.TP 20n
+.IR hostname -new-srvtab
+Service key file generated for
+.I hostname
+.TP
+/var/kerberos/principal.pag, /var/kerberos/principal.dir
+DBM files containing database
+.TP
+/.k
+Master key cache file.
+.SH SEE ALSO
+read_service_key(3), krb_get_phost(3)