dns

DNS and network configuration inspector for macOS — resolvers, search domains, and interface bindings in a single tree view.

How it works

dns collects DNS and network state from multiple macOS subsystems (scutil, ipconfig, networksetup, ifconfig, dig) and renders it as a single color-coded tree. Each section maps to a different layer of the resolution stack:

• Network — Active interfaces with IP, subnet, gateway, and an nmap scan command
• DNS Servers — Per-interface DHCP and manually configured nameservers with reverse DNS
• Search Domains — All configured search domains, deduplicated
• Resolvers — Per-interface resolver bindings with associated domains
• mDNS/Bonjour — Local hostname for multicast DNS
• Active Directory — AD domain controllers, Kerberos KDCs, and LDAP endpoints (when joined)

Install

brew install ansilithic/tap/dns

Or build from source (requires Xcode and macOS 14+):

make build && make install

Usage

USAGE: dns

OPTIONS:
  --version               Show the version.
  -h, --help              Show help information.

Examples

# Show full DNS and network tree
dns

License

MIT