why nginx worker process listen in port 80, not master process?

In my node, Every network namespace has own nginx process. when i use netstat command to get which nginx process are listening in port 80? I found that some nginx worker process are listening 80 port. Some nginx master process are listening port 80. In my understanding ,it should be that nginx

Re: No revalidation when using stale-while-revalidate

Hi, On 24. 07. 20 4:33, Maxim Dounin wrote: > As long as the response returned isn't cacheable (either > as specified in the response Cache-Control / Expires > headers, or per proxy_cache_valid), nginx won't put > the response into cache and will continue serving previously > cached response till