Have you installed, initialized and restarted each Dogtag subsystem in the order they appear on the wiki? Subsequent subsystems rely on certificates created prior to its installation. Also - check your versions of mod_nss and nss - it will not work if you are using NSS 3.12 or later or MOD_NSS 1.0.7-3 or later. That is if you are using the prebuilt packages on the Dogtag wiki for Fedora 8 installation. I believe if you build locally from most recent source for 8, 9 or 10 it is ok. Hope this helps. Zach Casper Lead Engineer Envieta, LLC From: pki-users-bounces(a)redhat.com [mailto:pki-users-bounces@redhat.com] On Behalf Of soham Sent: Tuesday, January 06, 2009 2:11 AM To: pki-users(a)redhat.com Subject: [Pki-users] any suggestion for get going with pki-tps in dogtag Hi, Whereas i could install all other instances, but could not get going with pki-tps instance. What could be the common error. I have followed the same procedures for installing it. error message says 'unable to connect'.