It has recently been brought to the attention of the Dogtag developers 
that numerous users in the Dogtag community have encountered problems 
successfully running the TPS subsystem.  On Fedora 8, we believe that we 
have isolated this issue as being related to normal Fedora 8 updates of 
the following two packages:
   NSS 3.11 --> NSS 3.12
   MOD_NSS 1.0.7-2 --> MOD_NSS 1.0.7-3 or later
Dogtag developers are currently working on a permanent fix for this 
issue.  However, until such time, users wishing to run a TPS subsystem 
are urged to use the original Fedora 8 GOLD bits available via 
http://fedoraproject.org/en/get-fedora.
After this fresh install it is important not to apply any updates that 
affect either the nss or mod_nss packages.
As we believe a very similar problem exists on Fedora 9, we would urge 
users wishing to run a TPS subsystem install this component on the 
aforementioned  Fedora 8 platform.