Understanding the configuration files

Your node needs five configuration files 

1. topology.json: Contains the list of of nodes that your node will connect to.
2. Byrion-genesis.json: Contains the blockchain parameters for Byron era.
3. Shelley-genesis.json: Contains the blockchain parameters for Shelley, Allegra and Mary eras
4. Alonzo-genesis.json: Contains the blockchain parameters for the Alonzo era 
5. config.json: Allows you to have full control on what your node does and how the information is presented, has these four sub-sections
   • Basic node configuration
   • Update parameters
   • Tracing
   • Logging control

For detailed information, please check Understanding your configuration files and how to use them

Download configuration files from: https://hydra.iohk.io/job/Cardano/cardano-node/cardano-deployment/latest-finished/download/1/index.html