The software of a DNS server consists of the following parts: server software and LMT.

The server software runs on the SUN Solaris operating system and consists of the following processes:

• Knl_proc: manages Om_proc and Bind_proc and controls communication between processes.
• Om_proc:
  provides the OM interface for communication between the server and the
  LMT. Alarms, logs, statistics, and MML commands are also processed in
  this process.
• Bind_proc: resolves domain names.

This document is very well done

• Yes You are right Bind_proc: resolves domain names.

Thanks for share the DNS SW doc .......