Docker

Reversed port mapping in Docker

DockerNetworkingPort publishingbeginner

What this snippet does

The container side comes second, so mapping to a port nginx does not listen on yields nothing.

Expected output

curl: (52) Empty reply from server

Why practise typing this

Typing networking code builds muscle memory for the symbols and indentation Docker uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

More Docker practice

Browse all Docker snippets →