It would be nice, if in the future releases of the Spotfire Server we could have GUI tools for the keytab file generation, like the "keytabGUI"(https://sourceforge.net/projects/keytabgui/?source=typ_redirect).
Or an additional tool like the "ktutil" command(http://web.mit.edu/kerberos/krb5-latest/doc/admin/admin_commands/ktutil.html).
This is unlikely to be of much user since most large organisations will have separate teams which do the AD administration so they would need to use command line tools.