**# Network Zones
Specify Framework for external access
Exposing Mesos Zones Outside
Requirements
- BIND server in front of the cluster
Questions:
- How do you identify the cryptographic cluster ID? From the cluster details
- Can only the Master nodes serve as the forwarders?
- What is a zone file? Where do I find it?
- Which servers does the BIND server need to be installed? All? Or just the public Agent?