Load settings from database at bootstrap

[eluser]Saquib[/eluser]
I want to load some settings from database in my application, I am planing to do that using a model which will be auto-loaded from config.

In model construct i will perform actions like a db query and fetch settings and store it in session for later use.

Application is allowed access from current ip address
Is App is marked as offline
Setting TimeZone for app

My Question is

What is the right way to load settings which should be available at very early stage in app (on bootstrap) ?
Is it good to store settings in Session ? what else can be done (Almost 25 columns data)?

Please help !