- An ACME protocol client written purely in Shell (Unix shell) language.
- Full ACME protocol implementation.
- Support ACME v1 and ACME v2
- Support ACME v2 wildcard certs
- Simple, powerful and very easy to use. You only need 3 minutes to learn it.
- Bash, dash and sh compatible.
- Simplest shell script for Let's Encrypt free certificate client.
- Purely written in Shell with no dependencies on python or the official Let's Encrypt client.
- Just one script to issue, renew and install your certificates automatically.
- DOES NOT require
root/sudoeraccess. - Docker friendly
- IPv6 support
It's probably the easiest & smartest shell script to automatically issue & renew the free certificates from Let's Encrypt.
Wiki: https://github.com/Neilpang/acme.sh/wiki
For Docker Fans: acme.sh 💕 Docker
Twitter: @neilpangxa
- FreeBSD.org
- ruby-china.org
- Proxmox
- pfsense
- webfaction
- Loadbalancer.org
- discourse.org
- Centminmod
- splynx
- archlinux
- opnsense.org
- CentOS Web Panel
- lnmp.org
- more...
| NO | Status | Platform |
|---|---|---|
| 1 |  |
Ubuntu |
| 2 |  |
Debian |
| 3 |  |
CentOS |
| 4 |  |
Windows (cygwin with curl, openssl and crontab included) |
| 5 |  |
FreeBSD |
| 6 |  |
pfsense |
| 7 |  |
openSUSE |
| 8 |  |
Alpine Linux (with curl) |
| 9 |  |
Archlinux |
| 10 |  |
fedora |
| 11 |  |
Kali Linux |
| 12 |  |
Oracle Linux |
| 13 |  |
Proxmox https://pve.proxmox.com/wiki/HTTPSCertificateConfiguration#Let.27s_Encrypt_using_acme.sh |
| 14 | ----- | Cloud Linux acmesh-official#111 |
| 15 |  |
OpenBSD |
| 16 |  |
Mageia |
| 17 | ----- | OpenWRT: Tested and working. See wiki page |
| 18 |  |
SunOS/Solaris |
| 19 |  |
Gentoo Linux |
| 20 |  |
Mac OSX |
For all build statuses, check our weekly build project:
https://github.com/Neilpang/acmetest
- Letsencrypt.org CA(default)
- BuyPass.com CA
- Webroot mode
- Standalone mode
- Standalone tls-alpn mode
- Apache mode
- Nginx mode
- DNS mode
- DNS alias mode
- Stateless mode
Check this project: https://github.com/Neilpang/get.acme.sh
curl https://get.acme.sh | shOr:
wget -O - https://get.acme.sh | shClone this project and launch installation:
git clone https://github.com/Neilpang/acme.sh.git
cd ./acme.sh
./acme.sh --installYou don't have to be root then, although it is recommended.
Advanced Installation: https://github.com/Neilpang/acme.sh/wiki/How-to-install
The installer will perform 3 actions:
- Create and copy
acme.shto your home dir ($HOME):~/.acme.sh/. All certs will be placed in this folder too. - Create alias for:
acme.sh=~/.acme.sh/acme.sh. - Create daily cron job to check and renew the certs if needed.
Cron entry example:
0 0 * * * "/home/user/.acme.sh"/acme.sh --cron --home "/home/user/.acme.sh" > /dev/nullAfter the installation, you must close the current terminal and reopen it to make the alias take effect.
Ok, you are ready to issue certs now.
Show help message:
root@v1:~# acme.sh -hExample 1: Single domain.
acme.sh --issue -d example.com -w /home/wwwroot/example.comor:
acme.sh --issue -d example.com -w /home/username/public_htmlor:
acme.sh --issue -d example.com -w /var/www/htmlExample 2: Multiple domains in the same cert.
acme.sh --issue -d example.com -d www.example.com -d cp.example.com -w /home/wwwroot/example.comThe parameter /home/wwwroot/example.com or /home/username/public_html or /var/www/html is the web root folder where you host your website files. You MUST have write access to this folder.
Second argument "example.com" is the main domain you want to issue the cert for. You must have at least one domain there.
You must point and bind all the domains to the same webroot dir: /home/wwwroot/example.com.
The certs will be placed in ~/.acme.sh/example.com/
The certs will be renewed automatically every 60 days.
More examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
After the cert is generated, you probably want to install/copy the cert to your Apache/Nginx or other servers. You MUST use this command to copy the certs to the target files, DO NOT use the certs files in ~/.acme.sh/ folder, they are for internal use only, the folder structure may change in the future.
Apache example:
acme.sh --install-cert -d example.com \
--cert-file /path/to/certfile/in/apache/cert.pem \
--key-file /path/to/keyfile/in/apache/key.pem \
--fullchain-file /path/to/fullchain/certfile/apache/fullchain.pem \
--reloadcmd "service apache2 force-reload"Nginx example:
acme.sh --install-cert -d example.com \
--key-file /path/to/keyfile/in/nginx/key.pem \
--fullchain-file /path/to/fullchain/nginx/cert.pem \
--reloadcmd "service nginx force-reload"Only the domain is required, all the other parameters are optional.
The ownership and permission info of existing files are preserved. You can pre-create the files to define the ownership and permission.
Install/copy the cert/key to the production Apache or Nginx path.
The cert will be renewed every 60 days by default (which is configurable). Once the cert is renewed, the Apache/Nginx service will be reloaded automatically by the command: service apache2 force-reload or service nginx force-reload.
Please take care: The reloadcmd is very important. The cert can be automatically renewed, but, without a correct 'reloadcmd' the cert may not be flushed to your server(like nginx or apache), then your website will not be able to show renewed cert in 60 days.
(requires you to be root/sudoer or have permission to listen on port 80 (TCP))
Port 80 (TCP) MUST be free to listen on, otherwise you will be prompted to free it and try again.
acme.sh --issue --standalone -d example.com -d www.example.com -d cp.example.comMore examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
(requires you to be root/sudoer or have permission to listen on port 443 (TCP))
Port 443 (TCP) MUST be free to listen on, otherwise you will be prompted to free it and try again.
acme.sh --issue --alpn -d example.com -d www.example.com -d cp.example.comMore examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
(requires you to be root/sudoer, since it is required to interact with Apache server)
If you are running a web server, Apache or Nginx, it is recommended to use the Webroot mode.
Particularly, if you are running an Apache server, you can use Apache mode instead. This mode doesn't write any files to your web root folder.
Just set string "apache" as the second argument and it will force use of apache plugin automatically.
acme.sh --issue --apache -d example.com -d www.example.com -d cp.example.comThis apache mode is only to issue the cert, it will not change your apache config files. You will need to configure your website config files to use the cert by yourself. We don't want to mess your apache server, don't worry.
More examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
(requires you to be root/sudoer, since it is required to interact with Nginx server)
If you are running a web server, Apache or Nginx, it is recommended to use the Webroot mode.
Particularly, if you are running an nginx server, you can use nginx mode instead. This mode doesn't write any files to your web root folder.
Just set string "nginx" as the second argument.
It will configure nginx server automatically to verify the domain and then restore the nginx config to the original version.
So, the config is not changed.
acme.sh --issue --nginx -d example.com -d www.example.com -d cp.example.comThis nginx mode is only to issue the cert, it will not change your nginx config files. You will need to configure your website config files to use the cert by yourself. We don't want to mess your nginx server, don't worry.
More examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
If your DNS provider supports API access, we can use that API to automatically issue the certs.
You don't have to do anything manually!
- CloudFlare.com API
- DNSPod.cn API
- CloudXNS.com API
- GoDaddy.com API
- PowerDNS.com API
- OVH, kimsufi, soyoustart and runabove API
- nsupdate API
- LuaDNS.com API
- DNSMadeEasy.com API
- AWS Route 53
- aliyun.com(阿里云) API
- ISPConfig 3.1 API
- Alwaysdata.com API
- Linode.com API
- FreeDNS (https://freedns.afraid.org/)
- cyon.ch
- Domain-Offensive/Resellerinterface/Domainrobot API
- Gandi LiveDNS API
- Knot DNS API
- DigitalOcean API (native)
- ClouDNS.net API
- Infoblox NIOS API (https://www.infoblox.com/)
- VSCALE (https://vscale.io/)
- Dynu API (https://www.dynu.com)
- DNSimple API
- NS1.com API
- DuckDNS.org API
- Name.com API
- Dyn Managed DNS API
- Yandex PDD API (https://pdd.yandex.ru)
- Hurricane Electric DNS service (https://dns.he.net)
- UnoEuro API (https://www.unoeuro.com/)
- INWX (https://www.inwx.de/)
- Servercow (https://servercow.de)
- Namesilo (https://www.namesilo.com)
- InternetX autoDNS API (https://internetx.com)
- Azure DNS
- selectel.com(selectel.ru) DNS API
- zonomi.com DNS API
- DreamHost.com API
- DirectAdmin API
- KingHost (https://www.kinghost.com.br/)
- Zilore (https://zilore.com)
- Loopia.se API
- acme-dns (https://github.com/joohoi/acme-dns)
- TELE3 (https://www.tele3.cz)
- EUSERV.EU (https://www.euserv.eu)
- DNSPod.com API (https://www.dnspod.com)
- Google Cloud DNS API
- ConoHa (https://www.conoha.jp)
- netcup DNS API (https://www.netcup.de)
- GratisDNS.dk (https://gratisdns.dk)
- Namecheap API (https://www.namecheap.com/)
- MyDNS.JP API (https://www.mydns.jp/)
- hosting.de (https://www.hosting.de)
- Neodigit.net API (https://www.neodigit.net)
- Exoscale.com API (https://www.exoscale.com/)
And:
lexicon DNS API: https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api (DigitalOcean, DNSimple, DNSMadeEasy, DNSPark, EasyDNS, Namesilo, NS1, PointHQ, Rage4 and Vultr etc.)
More APIs coming soon...
If your DNS provider is not on the supported list above, you can write your own DNS API script easily. If you do, please consider submitting a Pull Request and contribute it to the project.
For more details: How to use DNS API
See: https://github.com/Neilpang/acme.sh/wiki/dns-manual-mode first.
If your dns provider doesn't support any api access, you can add the txt record by your hand.
acme.sh --issue --dns -d example.com -d www.example.com -d cp.example.comYou should get an output like below:
Add the following txt record:
Domain:_acme-challenge.example.com
Txt value:9ihDbjYfTExAYeDs4DBUeuTo18KBzwvTEjUnSwd32-c
Add the following txt record:
Domain:_acme-challenge.www.example.com
Txt value:9ihDbjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Please add those txt records to the domains. Waiting for the dns to take effect.Then just rerun with renew argument:
acme.sh --renew -d example.comOk, it's done.
Take care, this is dns manual mode, it can not be renewed automatically. you will have to add a new txt record to your domain by your hand when you renew your cert.
Please use dns api mode instead.
Let's Encrypt can now issue ECDSA certificates.
And we support them too!
Just set the keylength parameter with a prefix ec-.
For example:
acme.sh --issue -w /home/wwwroot/example.com -d example.com --keylength ec-256acme.sh --issue -w /home/wwwroot/example.com -d example.com -d www.example.com --keylength ec-256Please look at the keylength parameter above.
Valid values are:
- ec-256 (prime256v1, "ECDSA P-256")
- ec-384 (secp384r1, "ECDSA P-384")
- ec-521 (secp521r1, "ECDSA P-521", which is not supported by Let's Encrypt yet.)
It's simple, just give a wildcard domain as the -d parameter.
acme.sh --issue -d example.com -d '*.example.com' --dns dns_cfNo, you don't need to renew the certs manually. All the certs will be renewed automatically every 60 days.
However, you can also force to renew a cert:
acme.sh --renew -d example.com --forceor, for ECC cert:
acme.sh --renew -d example.com --force --eccTo stop renewal of a cert, you can execute the following to remove the cert from the renewal list:
acme.sh --remove -d example.com [--ecc]The cert/key file is not removed from the disk.
You can remove the respective directory (e.g. ~/.acme.sh/example.com) by yourself.
acme.sh is in constant development, so it's strongly recommended to use the latest code.
You can update acme.sh to the latest code:
acme.sh --upgradeYou can also enable auto upgrade:
acme.sh --upgrade --auto-upgradeThen acme.sh will be kept up to date automatically.
Disable auto upgrade:
acme.sh --upgrade --auto-upgrade 0https://github.com/Neilpang/acme.sh/wiki/Issue-a-cert-from-existing-CSR
Speak ACME language using shell, directly to "Let's Encrypt".
TODO:
- Acme-tiny: https://github.com/diafygi/acme-tiny
- ACME protocol: https://github.com/ietf-wg-acme/acme
License is GPLv3
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Issues and pull requests are welcome.
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