Hot to know system wide shell variable?

Hi, 

I'm developping an daemon application using Redhat 7.2, and having
problems.
My application still contains bugs, so I need cores to debug. 
When the program is run from logged-in shell(bash), it dumps core but
when it runs from system boot script, it doesn't dump core.

What I suspect is, that for log-in shell ulimit -c is set to unlimited
for sure, but for system wide setting, ulimit -c might be set to
different value.

So, what I want to know are : 

How do I see a system wide value of ulimit -c ?
How do I set system wide value of ulimit -c ?


Thanks in advance for your help.

Regards,

-- 
Masahide Tomita <[email protected]>