addr.tools - possibly useful tools for the Internet

This repo contains the source code for:

• challenges.addr.tools - dns-01 ACME challenge helper zone
• dyn.addr.tools - dynamic DNS for your own domains, no account required
• info.addr.tools - explore identifying information for domain names and IP addresses
• myip.addr.tools - get your public IP address
• dnscheck.tools - identify your DNS resolvers, check DNSSEC validation, and perform other DNS tests
• myaddr.tools - dynamic DNS with a free custom subdomain, no account required
• addrd - the custom dns server behind many of the above services

Repo layout:

addr.tools
├── cmd/addrd   - dns server application code
├── configs     - addrd, nginx, and other sample config files
├── internal    - dns server library code
│   ├── config     - parses the addrd config json, creates and starts the service listeners
│   ├── dns2json   - a simple http handler that provides dns responses in json
│   ├── dnsutil    - dns server utilities (dnssec, edns0, basic handler, etc.)
│   ├── httputil   - http request utilities
│   ├── status     - dns server status handler
│   ├── ttlstore   - a key-value store with value expiration
│   └── zones      - the specific addr.tools service handlers
├── scripts   - build and other helper scripts
└── website   - website content