There is a copy of Liberty z/OS in /usr/lpp/liberty_zos/current that you can use "for non-production purposes". That would be unsupported. For production/supported use with your own applications you need to buy WebSphere Application Server for z/OS (or use the copy inside CICS).
David Follis IBM WebSphere z/OS ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN