[Spacewalk-list] A few questions

[Per Qvindesland]

Hi List

Appologies but I am trying to get me head around spacewalk and some of the
config steps.

What do I install on the clients so that I can run rhn-actions-control ?
Is there a good how to on enabling pam with ldap authentication? I found
this one 
https://rhn.linux.ncsu.edu/rhn/help/satellite/en/s1-maintenance-pam-auth.jsp
but it does not work on my install.
If I would like to have a second server with spacewalk installed for
redundancy purposes how do I do that? And would a proxy be ok for that what
would be the benefit of using a proxy and should I then install it on my
excisting spacewalk server?

Kind regards
Per Qvindesland