Setting kernel Parameters

I want to install Datastage in unix server... to do this i have to check that the following tunable kernel parameters:
MSGMAX
MSGMNB
MSGSEG
SEMMNS
SEMMSL
SEMMNI
SEMOPM
MAXUPROC

My question is where shall i find this parameters in Unix..?
Since i am new to unix i do not have much knoweldge about this??

Which Unix is it?

Mighty Google shows this

On AIX you usually use smit or the apropriate tool like "no" for network options, "ioo" for LVM settings etc., "vmo" for virtual memory stuff, chdev, and so on.