v1.1.0

Release v1.1.0

New Features

• Relay DNS Support: Forward unmatched queries to upstream DNS servers
  • Configure via DNS_RELAY_SERVERS environment variable
  • Support multiple upstream servers with failover
  • Automatic server validation and error handling
  • 5-second timeout per server

Improvements

• Enhanced DNS resolution strategy:

  1. Check local records first
  2. Forward to relay servers if no local match found
  3. Try multiple relay servers in sequence

• Better environment variable handling

  • Improved validation of relay server addresses
  • Better error messages and logging
  • Support for comma-separated server lists

Configuration

New Environment Variables

# Single upstream server
DNS_RELAY_SERVERS=8.8.8.8

# Multiple servers with failover
DNS_RELAY_SERVERS=8.8.8.8,1.1.1.1

Documentation

• Updated Kubernetes deployment guide
• Added relay DNS configuration examples
• Enhanced troubleshooting guide
• New testing examples for relay functionality

Bug Fixes

• Fixed environment variable parsing
• Improved error handling in DNS resolution
• Better validation of server addresses

Examples

Docker Run

docker run -d \
  --name nanodns \
  -p 5353:5353/udp \
  -e DNS_PORT=5353 \
  -e DNS_RELAY_SERVERS=8.8.8.8,1.1.1.1 \
  -e "A_REC1=app.local|192.168.1.10" \
  ghcr.io/mguptahub/nanodns:latest

Docker Compose

services:
  dns:
    image: ghcr.io/mguptahub/nanodns:latest
    environment:
      - DNS_PORT=5353
      - DNS_RELAY_SERVERS=8.8.8.8,1.1.1.1
      - A_REC1=app.local|192.168.1.10

Testing

# Test local records
dig @localhost -p 5353 app.local

# Test relay resolution
dig @localhost -p 5353 google.com

Contributors

@mguptahub and the NanoDNS community

Upgrading

No breaking changes from v1.0.0. Simply update to the new image version:

docker pull ghcr.io/mguptahub/nanodns:v1.1.0