how to make settings that Who can post on your facebook wall,sent massages,sent friend requests?

Facebook users every time face some problems like how to make setting to

• .Who can look up your profile by name or contact info?
• Who can send you friend requests?
• Who can send you Facebook messages?
• Who can post on your Wall?
• Who can see Wall posts by others on your profile? (Note: Stories about likes, friendships, and some other types of wall content aren't included in these settings.)
• Allow people other than your friends to subscribe to your public updates 
• Who can comment on your public updates?
• Whose activity do you want to be notified about? 
• Limit requests to friend of friends (helps prevent spam).

• Go the Account menu at the top right corner of Facebook and choose Privacy Settings.

• Next to the How You Connect heading, click Change Settings.