dog

# Using Homebrew
brew install dog

# Using Cargo
cargo install dog

# On Arch Linux
pacman -S dog

# Clone and build from GitHub
git clone https://github.com/ogham/dog.git
cd dog
cargo build --release
./target/release/dog --version

# Check version
dog --version

# Get help
dog --help

# Quick test
dog google.com

# Look up A record (default)
dog google.com

# Query MX records
dog --type MX google.com

# Look up AAAA (IPv6)
dog --type AAAA google.com

# Query NS records
dog --type NS google.com

# Check CNAME
dog --type CNAME blog.example.com

# Query multiple domains
dog google.com github.com cloudflare.com

# Look up multiple record types
dog --type A,MX,TXT example.com

# Check different record types
dog example.com --type NS
dog example.com --type SOA
dog example.com --type CNAME

# Email server information
dog -t MX example.com

# Authoritative nameservers
dog -t NS example.com

# Start of Authority record
dog -t SOA example.com

# Text records (SPF, DKIM, etc.)
dog -t TXT example.com

# CNAME aliases
dog -t CNAME mail.example.com

# All records
dog -t ANY example.com

# Google's DNS
dog -n 8.8.8.8 example.com

# Cloudflare DNS
dog -n 1.1.1.1 example.com

# OpenDNS
dog -n 208.67.222.123 example.com

# Quad9 DNS
dog -n 9.9.9.9 example.com

# Multiple nameservers
dog -n 8.8.8.8 -n 1.1.1.1 example.com

# DNS over HTTPS (DoH)
dog --https example.com

# DNS over TLS (DoT)
dog --tls example.com

# DoH with custom server
dog --https -n 1.1.1.1 example.com

# DoT with Quad9
dog --tls -n 9.9.9.9 example.com

# Export as JSON
dog --json google.com > dns_result.json

# Extract IP with jq
dog --json google.com | jq '.answers[].data'

# Process multiple domains
for domain in google.com github.com cloudflare.com; do
  dog --json "$domain" | jq '.answers[].data'
done

# Check DNS propagation
dog --json --type MX example.com | jq '.answers'

# Check all records for domain
dog example.com -t A
dog example.com -t MX
dog example.com -t NS
dog example.com -t TXT

# Compare results from different servers
dog -n 8.8.8.8 example.com
dog -n 1.1.1.1 example.com

# Verify DNS propagation
dog -n ns1.provider.com example.com

# Check reverse DNS
dog -t PTR 142.251.41.14

# ~/.bashrc or ~/.zshrc

# Quick lookups
alias dns='dog'
alias dnsm='dog -t MX'
alias dnsns='dog -t NS'
alias dnstxt='dog -t TXT'

# Check with specific servers
alias dns-google='dog -n 8.8.8.8'
alias dns-cloudflare='dog -n 1.1.1.1'

# Secure queries
alias dns-https='dog --https'
alias dns-tls='dog --tls'

# JSON export
alias dns-json='dog --json'

# Check multiple domains
cat > domains.txt <<'EOF'
google.com
github.com
cloudflare.com
EOF

# Query all domains
while read domain; do
  echo "=== $domain ==="
  dog "$domain"
done < domains.txt

# Export all to JSON
for domain in $(cat domains.txt); do
  dog --json "$domain" > "$domain.json"
done

# Monitor DNS changes
watch 'dog example.com'

# Compare different nameservers
diff <(dog -n 8.8.8.8 example.com) <(dog -n 1.1.1.1 example.com)

# Check DNS propagation over time
for i in {1..5}; do
  echo "Check $i:"
  dog -n 8.8.8.8 example.com | grep -E '^s+[0-9]+.'
  sleep 30
done

# Common record types:

A        - IPv4 address (most common)
AAAA     - IPv6 address
MX       - Mail server
NS       - Nameserver
CNAME    - Canonical name (alias)
TXT      - Text records (SPF, DKIM, verification)
SOA      - Start of Authority
PTR      - Pointer (reverse DNS)
SRV      - Service
CAA      - Certificate Authority Authorization
TLSA     - DANE/TLS authentication

# Example lookups
dog -t A example.com      # IPv4
dog -t AAAA example.com   # IPv6
dog -t MX example.com     # Email
dog -t TXT example.com    # Text records

# Use DoH for privacy
dog --https example.com

# Use DoT for encrypted queries
dog --tls example.com

# Use privacy-focused DNS providers
dog --https -n 1.1.1.1 example.com        # Cloudflare
dog --https -n 9.9.9.9 example.com        # Quad9
dog --https -n 64.6.64.6 example.com      # Verisign

# Check what your ISP sees
dog example.com  # Uses system default nameserver