What is
Strained yogurt, Greek yogurt, yogurt cheese, labneh, is yogurt which has been strained to remove its whey, resulting in a relatively thick consistency, while preserving yogurt's distinctive, sour taste.
  
It is a sort of whey cheese common in the Balkans, made from whey of sheep, goat or cow milk.
  
Origin
Central asian countries like kazakhstan, kyrgyzstan, tajikistan, Middle East
  
Israel