~/notes/linux

#linux

Problems I ran into, what I tried, and what I learned along the way. Some are finished stories, some are notes I'm still adding to.

  1. Why UFW doesn't block Docker ports I denied a port in UFW, but the container behind it was still reachable from the internet. It took me a while to stop blaming UFW and start reading iptables. #linux#docker#networking#security
  2. How Docker containers talk to each other How does a container reach another container, the host, or the internet underneath? What actually carries the packets? #docker#linux#networking