513 lines
20 KiB
Markdown
513 lines
20 KiB
Markdown
# An ACME Shell script: 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>
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[](https://gitter.im/acme-sh/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://hub.docker.com/r/neilpang/acme.sh "Click to view the image on Docker Hub")
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[](https://hub.docker.com/r/neilpang/acme.sh "Click to view the image on Docker Hub")
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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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- 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/acmesh-official/acme.sh/wiki
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For Docker Fans: [acme.sh :two_hearts: Docker ](https://github.com/acmesh-official/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/acmesh-official/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/Certificate_Management)
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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/acmesh-official/acme.sh/wiki/Blogs-and-tutorials)
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# Tested OS
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| NO | Status| Platform|
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|1|[](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Mac OSX
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|2|[](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Windows (cygwin with curl, openssl and crontab included)
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|3|[](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|FreeBSD
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|4|[](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Solaris
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|5|[](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)| Ubuntu
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|6|NA|pfsense
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|7|NA|OpenBSD
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|8|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)| Debian
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|9|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|CentOS
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|10|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|openSUSE
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|11|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Alpine Linux (with curl)
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|12|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Archlinux
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|13|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|fedora
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|14|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Kali Linux
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|15|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Oracle Linux
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|16|[](https://github.com/acmesh-official/letest#here-are-the-latest-status)| Proxmox: See Proxmox VE Wiki. Version [4.x, 5.0, 5.1](https://pve.proxmox.com/wiki/HTTPS_Certificate_Configuration_(Version_4.x,_5.0_and_5.1)#Let.27s_Encrypt_using_acme.sh), version [5.2 and up](https://pve.proxmox.com/wiki/Certificate_Management)
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|17|-----| Cloud Linux https://github.com/acmesh-official/acme.sh/issues/111
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|18|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Mageia
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|19|-----| OpenWRT: Tested and working. See [wiki page](https://github.com/acmesh-official/acme.sh/wiki/How-to-run-on-OpenWRT)
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|20|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Gentoo Linux
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|21|[](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|ClearLinux
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Check our [testing project](https://github.com/acmesh-official/acmetest):
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https://github.com/acmesh-official/acmetest
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# Supported CA
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- [ZeroSSL.com CA](https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA)(default)
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- Letsencrypt.org CA
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- [BuyPass.com CA](https://github.com/acmesh-official/acme.sh/wiki/BuyPass.com-CA)
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- [Pebble strict Mode](https://github.com/letsencrypt/pebble)
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- Any other [RFC8555](https://tools.ietf.org/html/rfc8555)-compliant CA
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# Supported modes
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- Webroot mode
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- Standalone mode
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- Standalone tls-alpn mode
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- Apache mode
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- Nginx mode
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- DNS mode
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- [DNS alias mode](https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode)
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- [Stateless mode](https://github.com/acmesh-official/acme.sh/wiki/Stateless-Mode)
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# 1. How to install
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### 1. Install online
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Check this project: https://github.com/acmesh-official/get.acme.sh
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```bash
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curl https://get.acme.sh | sh -s email=my@example.com
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```
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Or:
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```bash
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wget -O - https://get.acme.sh | sh -s email=my@example.com
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```
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### 2. Or, Install from git
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Clone this project and launch installation:
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```bash
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git clone https://github.com/acmesh-official/acme.sh.git
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cd ./acme.sh
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./acme.sh --install -m my@example.com
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```
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You `don't have to be root` then, although `it is recommended`.
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Advanced Installation: https://github.com/acmesh-official/acme.sh/wiki/How-to-install
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The installer will perform 3 actions:
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1. Create and copy `acme.sh` to your home dir (`$HOME`): `~/.acme.sh/`.
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All certs will be placed in this folder too.
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2. Create alias for: `acme.sh=~/.acme.sh/acme.sh`.
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3. Create daily cron job to check and renew the certs if needed.
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Cron entry example:
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```bash
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0 0 * * * "/home/user/.acme.sh"/acme.sh --cron --home "/home/user/.acme.sh" > /dev/null
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```
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After the installation, you must close the current terminal and reopen it to make the alias take effect.
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Ok, you are ready to issue certs now.
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Show help message:
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```sh
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root@v1:~# acme.sh -h
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```
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# 2. Just issue a cert
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**Example 1:** Single domain.
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```bash
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acme.sh --issue -d example.com -w /home/wwwroot/example.com
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```
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or:
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```bash
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acme.sh --issue -d example.com -w /home/username/public_html
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```
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or:
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```bash
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acme.sh --issue -d example.com -w /var/www/html
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```
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**Example 2:** Multiple domains in the same cert.
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```bash
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acme.sh --issue -d example.com -d www.example.com -d cp.example.com -w /home/wwwroot/example.com
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```
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The 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.
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Second argument **"example.com"** is the main domain you want to issue the cert for.
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You must have at least one domain there.
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You must point and bind all the domains to the same webroot dir: `/home/wwwroot/example.com`.
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The certs will be placed in `~/.acme.sh/example.com/`
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The certs will be renewed automatically every **60** days.
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More examples: https://github.com/acmesh-official/acme.sh/wiki/How-to-issue-a-cert
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# 3. Install the cert to Apache/Nginx etc.
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After the cert is generated, you probably want to install/copy the cert to your Apache/Nginx or other servers.
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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.
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**Apache** example:
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```bash
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acme.sh --install-cert -d example.com \
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--cert-file /path/to/certfile/in/apache/cert.pem \
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--key-file /path/to/keyfile/in/apache/key.pem \
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--fullchain-file /path/to/fullchain/certfile/apache/fullchain.pem \
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--reloadcmd "service apache2 force-reload"
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```
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**Nginx** example:
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```bash
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acme.sh --install-cert -d example.com \
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--key-file /path/to/keyfile/in/nginx/key.pem \
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--fullchain-file /path/to/fullchain/nginx/cert.pem \
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--reloadcmd "service nginx force-reload"
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```
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Only the domain is required, all the other parameters are optional.
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The ownership and permission info of existing files are preserved. You can pre-create the files to define the ownership and permission.
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Install/copy the cert/key to the production Apache or Nginx path.
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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`.
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**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.**
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# 4. Use Standalone server to issue cert
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**(requires you to be root/sudoer or have permission to listen on port 80 (TCP))**
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Port `80` (TCP) **MUST** be free to listen on, otherwise you will be prompted to free it and try again.
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```bash
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acme.sh --issue --standalone -d example.com -d www.example.com -d cp.example.com
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```
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More examples: https://github.com/acmesh-official/acme.sh/wiki/How-to-issue-a-cert
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# 5. Use Standalone ssl server to issue cert
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**(requires you to be root/sudoer or have permission to listen on port 443 (TCP))**
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Port `443` (TCP) **MUST** be free to listen on, otherwise you will be prompted to free it and try again.
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```bash
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acme.sh --issue --alpn -d example.com -d www.example.com -d cp.example.com
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```
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More examples: https://github.com/acmesh-official/acme.sh/wiki/How-to-issue-a-cert
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# 6. Use Apache mode
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**(requires you to be root/sudoer, since it is required to interact with Apache server)**
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If you are running a web server, it is recommended to use the `Webroot mode`.
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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.
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Just set string "apache" as the second argument and it will force use of apache plugin automatically.
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```sh
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acme.sh --issue --apache -d example.com -d www.example.com -d cp.example.com
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```
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**This apache mode is only to issue the cert, it will not change your apache config files.
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You will need to configure your website config files to use the cert by yourself.
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We don't want to mess with your apache server, don't worry.**
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More examples: https://github.com/acmesh-official/acme.sh/wiki/How-to-issue-a-cert
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# 7. Use Nginx mode
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**(requires you to be root/sudoer, since it is required to interact with Nginx server)**
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If you are running a web server, it is recommended to use the `Webroot mode`.
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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.
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Just set string "nginx" as the second argument.
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It will configure nginx server automatically to verify the domain and then restore the nginx config to the original version.
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So, the config is not changed.
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```sh
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acme.sh --issue --nginx -d example.com -d www.example.com -d cp.example.com
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```
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**This nginx mode is only to issue the cert, it will not change your nginx config files.
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You will need to configure your website config files to use the cert by yourself.
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We don't want to mess with your nginx server, don't worry.**
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More examples: https://github.com/acmesh-official/acme.sh/wiki/How-to-issue-a-cert
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# 8. Automatic DNS API integration
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If your DNS provider supports API access, we can use that API to automatically issue the certs.
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You don't have to do anything manually!
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### Currently acme.sh supports most of the dns providers:
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https://github.com/acmesh-official/acme.sh/wiki/dnsapi
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# 9. Use DNS manual mode:
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See: https://github.com/acmesh-official/acme.sh/wiki/dns-manual-mode first.
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If your dns provider doesn't support any api access, you can add the txt record by hand.
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```bash
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acme.sh --issue --dns -d example.com -d www.example.com -d cp.example.com
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```
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You should get an output like below:
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```sh
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Add the following txt record:
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Domain:_acme-challenge.example.com
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Txt value:9ihDbjYfTExAYeDs4DBUeuTo18KBzwvTEjUnSwd32-c
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Add the following txt record:
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Domain:_acme-challenge.www.example.com
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Txt value:9ihDbjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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Please add those txt records to the domains. Waiting for the dns to take effect.
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```
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Then just rerun with `renew` argument:
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```bash
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acme.sh --renew -d example.com
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```
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Ok, it's done.
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**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.**
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**Please use dns api mode instead.**
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# 10. Issue ECC certificates
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`Let's Encrypt` can now issue **ECDSA** certificates.
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And we support them too!
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Just set the `keylength` parameter with a prefix `ec-`.
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For example:
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### Single domain ECC certificate
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```bash
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acme.sh --issue -w /home/wwwroot/example.com -d example.com --keylength ec-256
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```
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### SAN multi domain ECC certificate
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```bash
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acme.sh --issue -w /home/wwwroot/example.com -d example.com -d www.example.com --keylength ec-256
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```
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Please look at the `keylength` parameter above.
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Valid values are:
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1. **ec-256 (prime256v1, "ECDSA P-256")**
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2. **ec-384 (secp384r1, "ECDSA P-384")**
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3. **ec-521 (secp521r1, "ECDSA P-521", which is not supported by Let's Encrypt yet.)**
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# 11. Issue Wildcard certificates
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It's simple, just give a wildcard domain as the `-d` parameter.
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```sh
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acme.sh --issue -d example.com -d '*.example.com' --dns dns_cf
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```
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# 12. How to renew the certs
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No, you don't need to renew the certs manually. All the certs will be renewed automatically every **60** days.
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However, you can also force to renew a cert:
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```sh
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acme.sh --renew -d example.com --force
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```
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or, for ECC cert:
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```sh
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acme.sh --renew -d example.com --force --ecc
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```
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# 13. How to stop cert renewal
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To stop renewal of a cert, you can execute the following to remove the cert from the renewal list:
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```sh
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acme.sh --remove -d example.com [--ecc]
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```
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The cert/key file is not removed from the disk.
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You can remove the respective directory (e.g. `~/.acme.sh/example.com`) by yourself.
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# 14. How to upgrade `acme.sh`
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acme.sh is in constant development, so it's strongly recommended to use the latest code.
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You can update acme.sh to the latest code:
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```sh
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acme.sh --upgrade
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```
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You can also enable auto upgrade:
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```sh
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acme.sh --upgrade --auto-upgrade
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```
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Then **acme.sh** will be kept up to date automatically.
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Disable auto upgrade:
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```sh
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acme.sh --upgrade --auto-upgrade 0
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```
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# 15. Issue a cert from an existing CSR
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https://github.com/acmesh-official/acme.sh/wiki/Issue-a-cert-from-existing-CSR
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# 16. Send notifications in cronjob
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https://github.com/acmesh-official/acme.sh/wiki/notify
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# 17. Under the Hood
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Speak ACME language using shell, directly to "Let's Encrypt".
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TODO:
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# 18. Acknowledgments
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1. Acme-tiny: https://github.com/diafygi/acme-tiny
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2. ACME protocol: https://github.com/ietf-wg-acme/acme
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## Contributors
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### Code Contributors
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This project exists thanks to all the people who contribute.
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<a href="https://github.com/acmesh-official/acme.sh/graphs/contributors"><img src="https://opencollective.com/acmesh/contributors.svg?width=890&button=false" /></a>
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### Financial Contributors
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Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/acmesh/contribute)]
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#### Individuals
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<a href="https://opencollective.com/acmesh"><img src="https://opencollective.com/acmesh/individuals.svg?width=890"></a>
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#### Organizations
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Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/acmesh/contribute)]
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<a href="https://opencollective.com/acmesh/organization/0/website"><img src="https://opencollective.com/acmesh/organization/0/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/1/website"><img src="https://opencollective.com/acmesh/organization/1/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/2/website"><img src="https://opencollective.com/acmesh/organization/2/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/3/website"><img src="https://opencollective.com/acmesh/organization/3/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/4/website"><img src="https://opencollective.com/acmesh/organization/4/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/5/website"><img src="https://opencollective.com/acmesh/organization/5/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/6/website"><img src="https://opencollective.com/acmesh/organization/6/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/7/website"><img src="https://opencollective.com/acmesh/organization/7/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/8/website"><img src="https://opencollective.com/acmesh/organization/8/avatar.svg"></a>
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<a href="https://opencollective.com/acmesh/organization/9/website"><img src="https://opencollective.com/acmesh/organization/9/avatar.svg"></a>
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# 19. License & Others
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License is GPLv3
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Please Star and Fork me.
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[Issues](https://github.com/acmesh-official/acme.sh/issues) and [pull requests](https://github.com/acmesh-official/acme.sh/pulls) are welcome.
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# 20. Donate
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Your donation makes **acme.sh** better:
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1. PayPal/Alipay(支付宝)/Wechat(微信): [https://donate.acme.sh/](https://donate.acme.sh/)
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[Donate List](https://github.com/acmesh-official/acme.sh/wiki/Donate-list)
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