msktutil is Active Directory keytab manager that you can run on Linux, see home page at http://fuhm.net/software/msktutil/ . To compile it on FreeBSD:

1. Install OpenLDAP client and Cyrus-SASL2 from ports
2. patch ./configure file with:
   --- configure.orig      2010-03-16 06:12:42.000000000 +0100
   +++ configure   2011-01-01 15:08:23.723972239 +0100
   @@ -3919,6 +3919,8 @@
   
    # Checks for libraries.
   
   +KRB5_LDFLAGS=`/usr/bin/krb5-config --libs 2>/dev/null`
   +LIBS="$KRB5_LDFLAGS $LIBS"
    { echo "$as_me:$LINENO: checking for krb5_init_context in -lkrb5" >&5
    echo $ECHO_N "checking for krb5_init_context in -lkrb5... $ECHO_C" >&6; }
    if test "${ac_cv_lib_krb5_krb5_init_context+set}" = set; then
   @@ -4073,7 +4075,7 @@
    { echo "$as_me:$LINENO: checking whether com_err.h needs extern \"C\"" >&5
    echo $ECHO_N "checking whether com_err.h needs extern \"C\"... $ECHO_C" >&6; };
   
   -LIBS=-lkrb5
   +LIBS="-lkrb5 $LIBS"
    cat >conftest.$ac_ext <<_ACEOF
   
    #include <com_err.h>
3. patch Makefile.in with:
   --- Makefile.in.orig    2010-03-16 06:12:42.000000000 +0100
   +++ Makefile.in 2011-01-01 15:04:17.286260778 +0100
   @@ -8,7 +8,8 @@
    CPPFLAGS=@CPPFLAGS@
    CXXFLAGS=@CXXFLAGS@ $(WARNFLAGS)
    LDFLAGS=@LDFLAGS@
   -LIBS=-lkrb5 -lldap
   +KRB5_LDFLAGS=`/usr/bin/krb5-config --libs 2>/dev/null`
   +LIBS=-lkrb5 -lldap $(KRB5_LDFLAGS)
    INSTALL=@INSTALL@
    RM=@RM@ -rf
    CP=@CP@ -f
4. patch msktutil.cpp with:
   --- old/msktutil-0.4/msktname.cpp       2010-03-16 06:12:42.000000000 +0100
   +++ new/msktutil-0.4/msktname.cpp       2010-12-31 13:42:29.725078742 +0100
   @@ -26,6 +26,7 @@
     */
   
    #include "msktutil.h"
   +#include <netinet/in.h>
   
   
    std::string complete_hostname(const std::string &hostname)
5. run ./configure with following opts:
   ./configure CPPFLAGS="-I/usr/local/include -I/usr/local/include/sasl" LDFLAGS="-L/usr/local/lib"
6. run gmake