> ## Documentation Index
> Fetch the complete documentation index at: https://docs.optimism.io/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

1. [Ports](/rust/kona/node/faq/ports) - Detailed account of ports used by the `kona-node` for P2P communication, JSON-RPC APIs, and the Engine API for execution layer communication.

2. [Profiling](/rust/kona/node/faq/profiling) - Profile performance of the Kona node including CPU profiling and memory analysis.