# Acme

> ACME protocol and SSL/TLS certificate automation reference. Covers challenge types (HTTP-01, DNS-01, TLS-ALPN-01), major clients (certbot, acme.sh, lego, Caddy), certificate lifecycle management, Kubernetes cert-manager, Docker/Traefik integration, and security best practices.

- Skill: `bytesagain/acme` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add bytesagain/acme`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bytesagain/acme/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: bytesagain (https://skillmd.com/u/bytesagain)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/bytesagain/acme

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# ACME Protocol Reference

SSL/TLS certificate automation using the ACME protocol (RFC 8555).

## Commands

| Command | Description |
|---------|-------------|
| `intro` | ACME protocol overview and key concepts |
| `challenges` | HTTP-01, DNS-01, TLS-ALPN-01 challenge types |
| `clients` | Certbot, acme.sh, lego, Caddy comparison |
| `workflow` | Certificate lifecycle and renewal strategies |
| `security` | Key protection, rate limits, CAA, CT logs |
| `automation` | Nginx, Docker/Traefik, Kubernetes patterns |
| `troubleshoot` | Common errors and diagnostic commands |
| `best-practices` | Production deployment recommendations |