small footprint, trivial to configure, DNS server

 This is a simple and small DNS server.
 Major features are:
  - Support for A, MX, NS, TXT, PTR, SOA in local resource records
  - Additional RRs handling
  - Responses cache, with optional TTL expiration
  - Forwarding to multiple exteral DNS servers, with simultaneous or
    time-driven query
  - Optional TCP zone transfer
  - A in RRs shuffling
  - Built-in ACL rules
  - Root privileges squashing
  - Chroot jail under unix systems
  - Secure DNS IDs to prevent DNS forget
  - Logging
  - Very simple config file