v1.18.0

Known Issues

• bosh-dns fails to bind to 127.0.0.1 on windows: #171637356 (fixed in v1.19.0)
• bosh-dns may stop resolving internal domains until process manually restarted (#55) (fixed in v1.20.0)

Features/Updates

• Implement reverse DNS lookups for deployed VMs #170963966
• Skip smart health checks for single records #169610417
• Add port and log_level to windows spec
• Add addresses_files_glob to linux spec
• All DNS requests/responses logged at debug
• Bump dependencies (Golang, vendored libraries)

Fixes

• Avoid SERVFAIL responses: #170937906
  • servfail causes clients to try the next recursor and should be avoided
  • return nxdomain if dns blob has no matching domain
  • return formerr if query/domain can't be parsed
  • return success with 0 answers if no domains match query filter
• 5 second timeout for graceful dns server shutdown #171005042
• Try next recursor for non-successful responses #171082087
• Synchronous health checks should wait for inflight health requests #171163168
• Fix answer shuffling for small result sets #171185338