Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello i have question if i'm leveling alt and i have main char , and i take quests , whit alt , but killing mobs whit main char its bannable ? ( its not any program using just two client using )

That's not allowed. Check out the faq. Asfaik, you can only have an alt up for AH use while your main is online.

Dam i think to level up tank but if i can't so never.