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Programming language: Go
Tags: Security    
Latest version: v3.3.0

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README

lego

Let's Encrypt client and ACME library written in Go.

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Features

  • Register with CA
  • Obtain certificates, both from scratch or with an existing CSR
  • Renew certificates
  • Revoke certificates
  • Robust implementation of all ACME challenges
    • HTTP (http-01)
    • DNS (dns-01)
    • TLS (tls-alpn-01)
  • SAN certificate support
  • Comes with multiple optional DNS providers
  • Custom challenge solvers
  • Certificate bundling
  • OCSP helper function

lego introduced support for ACME v2 in v1.0.0. If you still need to utilize ACME v1, you can do so by using the v0.5.0 version.

Installation

How to install.

Usage

Documentation

Documentation is hosted live at https://go-acme.github.io/lego/.

DNS providers

Detailed documentation is available here.

Alibaba Cloud DNS Amazon Lightsail Amazon Route 53 Aurora DNS
Autodns Azure Bindman Bluecat
Checkdomain Cloudflare ClouDNS CloudXNS
ConoHa Designate DNSaaS for Openstack Digital Ocean DNS Made Easy
DNSimple DNSPod Domain Offensive (do.de) DreamHost
Duck DNS Dyn EasyDNS Exoscale
External program FastDNS Gandi Live DNS (v5) Gandi
Glesys Go Daddy Google Cloud Hosting.de
HTTP request Internet Initiative Japan INWX Joker
Joohoi's ACME-DNS Linode (deprecated) Linode (v4) Liquid Web
Manual MyDNS.jp Name.com Namecheap
Namesilo Netcup NIFCloud NS1
Open Telekom Cloud Oracle Cloud OVH PowerDNS
Rackspace RFC2136 Sakura Cloud Selectel
Stackpath TransIP VegaDNS Vscale
Versio Vultr Zone.ee