What this snippet does
A server bound to loopback inside the container is unreachable even with -p published.
Expected output
curl: (56) Recv failure: Connection reset by peer
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
- Publishing a portNetworking · beginner
- Reversed port mappingNetworking · beginner
- Service discovery by nameNetworking · intermediate
- No DNS on the default bridgeNetworking · intermediate
- localhost inside a containerNetworking · intermediate
- Reaching a service on the hostNetworking · intermediate