[HPADM] tcp_wrappers

I installed tcp_wrappers to my server.
- How do I know if tcp_wrappers is running on my server? I "ps -ef|grep
tcpd" that does not show any thing.
- Does this tcp_wrappers automatic startup when system startups, or I have
to create a startup script for it?
- What is the format to put in /etc/hosts.allow and /etc/hosts/deny if I
want to 209.230.*.* to access the box?

Thanks for your help.

Stephanie