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acme.sh/

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# An ACME Shell script: acme.sh [![Build Status](https://travis-ci.org/Neilpang/acme.sh.svg?branch=master)](https://travis-ci.org/Neilpang/acme.sh)

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<a href="https://opencollective.com/acmesh" alt="Financial Contributors on Open Collective"><img src="https://opencollective.com/acmesh/all/badge.svg?label=financial+contributors" /></a> [![Join the chat at https://gitter.im/acme-sh/Lobby](https://badges.gitter.im/acme-sh/Lobby.svg)](https://gitter.im/acme-sh/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)

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- An ACME protocol client written purely in Shell (Unix shell) language.

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- Full ACME protocol implementation.

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- Support ACME v1 and ACME v2

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- Support ACME v2 wildcard certs

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- Simple, powerful and very easy to use. You only need 3 minutes to learn it.

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- Bash, dash and sh compatible.

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- Simplest shell script for Let's Encrypt free certificate client.

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- Purely written in Shell with no dependencies on python or the official Let's Encrypt client.

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- Just one script to issue, renew and install your certificates automatically.

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- DOES NOT require `root/sudoer` access.

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- Docker friendly

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- IPv6 support

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- Cron job notifications for renewal or error etc.

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It's probably the `easiest & smartest` shell script to automatically issue & renew the free certificates from Let's Encrypt.

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Wiki: https://github.com/Neilpang/acme.sh/wiki

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For Docker Fans: [acme.sh :two_hearts: Docker ](https://github.com/Neilpang/acme.sh/wiki/Run-acme.sh-in-docker)

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Twitter: [@neilpangxa](https://twitter.com/neilpangxa)

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# [中文说明](https://github.com/Neilpang/acme.sh/wiki/%E8%AF%B4%E6%98%8E)

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# Who:

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- [FreeBSD.org](https://blog.crashed.org/letsencrypt-in-freebsd-org/)

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- [ruby-china.org](https://ruby-china.org/topics/31983)

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- [Proxmox](https://pve.proxmox.com/wiki/HTTPS_Certificate_Configuration_(Version_4.x_and_newer))

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- [pfsense](https://github.com/pfsense/FreeBSD-ports/pull/89)

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- [webfaction](https://community.webfaction.com/questions/19988/using-letsencrypt)

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- [Loadbalancer.org](https://www.loadbalancer.org/blog/loadbalancer-org-with-lets-encrypt-quick-and-dirty)

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- [discourse.org](https://meta.discourse.org/t/setting-up-lets-encrypt/40709)

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- [Centminmod](https://centminmod.com/letsencrypt-acmetool-https.html)

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- [splynx](https://forum.splynx.com/t/free-ssl-cert-for-splynx-lets-encrypt/297)

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- [archlinux](https://www.archlinux.org/packages/community/any/acme.sh)

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- [opnsense.org](https://github.com/opnsense/plugins/tree/master/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient)

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- [CentOS Web Panel](http://centos-webpanel.com/)

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- [lnmp.org](https://lnmp.org/)

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- [more...](https://github.com/Neilpang/acme.sh/wiki/Blogs-and-tutorials)

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# Tested OS

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