What was the attitude of the everyday German toward the Holocaust during WWII?

It obviously wasn't a public conversation topic. It was a secret, along with a thousand other things. I'm assuming that a lot of average Germans knew more than they ever let on and they saw a way to keep their families safe: "I don't know about that stuff. I'm only concerned with the war effort, the starvation crisis, making sure I don't get sent to the eastern front, etc."<br><br>How did people know about the death camps? It must have been obvious, to an extent. I can't think of a good analogy to help explain my query.