diff -ur krb5-1.6.2.orig/src/aclocal.m4 krb5-1.6.2/src/aclocal.m4
--- krb5-1.6.2.orig/src/aclocal.m4	2007-11-20 11:39:51.000000000 -0500
+++ krb5-1.6.2/src/aclocal.m4	2007-11-20 12:09:56.000000000 -0500
@@ -1798,6 +1798,12 @@
     yes | no) ;;
     *)  AC_MSG_ERROR(Invalid option value --with-edirectory="$withval") ;;
 esac], with_edirectory=no)dnl
+AC_ARG_WITH([dirsrv],
+[  --with-dirsrv       compile Red Hat/Fedora/Netscape Directory Server database backend module],
+[case "$withval" in
+    yes | no) ;;
+    *)  AC_MSG_ERROR(Invalid option value --with-dirsrv="$withval") ;;
+esac], with_dirsrv=no)dnl
 
 if test $with_ldap = yes; then
   if test $with_edirectory = yes; then
@@ -1809,6 +1815,10 @@
   AC_MSG_NOTICE(enabling eDirectory database backend module support)
   OPENLDAP_PLUGIN=yes
   AC_DEFINE(HAVE_EDIRECTORY,1,[Define if LDAP KDB interface should assume eDirectory.])
+elif test $with_dirsrv = yes; then
+  AC_MSG_NOTICE(enabling Red Hat/Fedora/Netscape Directory Server database backend module support)
+  OPENLDAP_PLUGIN=yes
+  AC_DEFINE(HAVE_DIRSRV,1,[Define if LDAP KDB interface should assume RHDS/FDS/NDS.])
 else
   : # neither enabled
 dnl  AC_MSG_NOTICE(disabling ldap backend module support)
diff -ur krb5-1.6.2.orig/src/plugins/kdb/ldap/libkdb_ldap/ldap_misc.c krb5-1.6.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_misc.c
--- krb5-1.6.2.orig/src/plugins/kdb/ldap/libkdb_ldap/ldap_misc.c	2006-12-21 23:28:09.000000000 -0500
+++ krb5-1.6.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_misc.c	2007-11-20 12:04:10.000000000 -0500
@@ -2141,6 +2141,22 @@
 	}
     }
 #endif
+#ifdef HAVE_DIRSRV
+    {
+	krb5_timestamp              expiretime=0;
+	char                        *is_login_disabled=NULL;
+
+	/* LOGIN DISABLED */
+	if ((st=krb5_ldap_get_string(ld, ent, "nsaccountlock", &is_login_disabled,
+		    &attr_present)) != 0)
+	    goto cleanup;
+	if (attr_present == TRUE) {
+	    if (strcasecmp(is_login_disabled, "TRUE")== 0)
+		entry->attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
+	    free (is_login_disabled);
+	}
+    }
+#endif
 
     if ((st=krb5_read_tkt_policy (context, ldap_context, entry, tktpolname)) !=0)
 	goto cleanup;
diff -ur krb5-1.6.2.orig/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c krb5-1.6.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c
--- krb5-1.6.2.orig/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c	2007-01-03 19:27:26.000000000 -0500
+++ krb5-1.6.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c	2007-11-20 12:00:27.000000000 -0500
@@ -57,6 +57,9 @@
 				     "loginexpirationtime",
 				     "logindisabled",
 #endif
+#ifdef HAVE_DIRSRV
+				     "nsaccountlock",
+#endif
 				     "loginexpirationtime",
 				     "logindisabled",
 				     "modifytimestamp",