259 lines
8.0 KiB
Markdown
259 lines
8.0 KiB
Markdown
# le: means simp`Le`
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Simplest shell script for LetsEncrypt free Certificate client
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Simple and Powerful, you only need 3 minutes to learn.
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Pure written in bash, no dependencies to python, acme-tiny or LetsEncrypt official client.
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Just one script, to issue, renew your certificates automatically.
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Probably it's the smallest&easiest&smartest shell script to automatically issue & renew the free certificates from LetsEncrypt.
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Do NOT require to be `root/sudoer`.
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#Tested OS
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1. Ubuntu [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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2. Debian [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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3. CentOS [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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4. Windows (cygwin with curl, openssl and crontab included) [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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5. FreeBSD with bash [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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6. pfsense with bash and curl
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7. openSUSE [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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8. Alpine Linux [](https://github.com/Neilpang/letest#here-are-the-latest-status) (with bash, curl. https://github.com/Neilpang/le/issues/94)
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9. Archlinux [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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10. fedora [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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11. Kali Linux [](https://github.com/Neilpang/letest#here-are-the-latest-status)
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For all the build status, check our daily build project:
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https://github.com/Neilpang/letest.git
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#Supported Mode
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1. Webroot mode
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2. Standalone mode
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3. Apache mode
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4. Dns mode
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#How to use
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1. Clone this project: https://github.com/Neilpang/le.git
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2. Install le:
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```
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./le.sh install
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```
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You don't have to be root then, although it is recommended.
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Which does 3 jobs:
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* create and copy `le.sh` to your home dir: `~/.le`
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All the certs will be placed in this folder.
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* create alias : `le.sh=~/.le/le.sh` and `le=~/.le/le.sh`.
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* create everyday cron job to check and renew the cert if needed.
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After install, you must close current terminal and reopen again to make the alias take effect.
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Ok, you are ready to issue cert now.
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Show help message:
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```
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root@v1:~# le.sh
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https://github.com/Neilpang/le
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v1.1.1
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Usage: le.sh [command] ...[args]....
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Available commands:
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install:
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Install le.sh to your system.
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issue:
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Issue a cert.
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installcert:
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Install the issued cert to apache/nginx or any other server.
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renew:
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Renew a cert.
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renewAll:
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Renew all the certs.
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uninstall:
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Uninstall le.sh, and uninstall the cron job.
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version:
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Show version info.
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installcronjob:
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Install the cron job to renew certs, you don't need to call this. The 'install' command can automatically install the cron job.
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uninstallcronjob:
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Uninstall the cron job. The 'uninstall' command can do this automatically.
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createAccountKey:
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Create an account private key, professional use.
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createDomainKey:
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Create an domain private key, professional use.
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createCSR:
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Create CSR , professional use.
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root@v1:~/le# le issue
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Usage: le issue webroot|no|apache|dns a.com [www.a.com,b.com,c.com]|no [key-length]|no
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```
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Set the param value to "no" means you want to ignore it.
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For example, if you give "no" to "key-length", it will use default length 2048.
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And if you give 'no' to 'cert-file-path', it will not copy the issued cert to the "cert-file-path".
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In all the cases, the issued cert will be placed in "~/.le/domain.com/"
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# Just issue a cert:
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Example 1:
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Only one domain:
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```
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le issue /home/wwwroot/aa.com aa.com
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```
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Example 2:
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Multiple domains in the same cert:
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```
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le issue /home/wwwroot/aa.com aa.com www.aa.com,cp.aa.com
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```
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First argument `/home/wwwroot/aa.com` is the web root folder, You must have `write` access to this folder.
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Second argument "aa.com" is the main domain you want to issue cert for.
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Third argument is the additional domain list you want to use. Comma separated list, which is Optional.
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You must point and bind all the domains to the same webroot dir:`/home/wwwroot/aa.com`
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The cert will be placed in `~/.le/aa.com/`
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The issued cert will be renewed every 80 days automatically.
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# Install issued cert to apache/nginx etc.
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```
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le installcert aa.com /path/to/certfile/in/apache/nginx /path/to/keyfile/in/apache/nginx /path/to/ca/certfile/apache/nginx "service apache2|nginx reload"
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```
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Install the issued cert/key to the production apache or nginx path.
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The cert will be renewed every 80 days by default (which is configurable), Once the cert is renewed, the apache/nginx will be automatically reloaded by the command: `service apache2 reload` or `service nginx reload`
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# Use Standalone server to issue cert (requires you be root/sudoer, or you have permission to listen tcp 80 port):
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Same usage as all above, just give `no` as the webroot.
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The tcp `80` port must be free to listen, otherwise you will be prompted to free the `80` port and try again.
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```
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le issue no aa.com www.aa.com,cp.aa.com
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```
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# Use Apache mode (requires you be root/sudoer, since it is required to interact with apache server):
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If you are running a web server, apache or nginx, 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. Which doesn't write any file to your web root folder.
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Just set string "apache" to the first argument, it will use apache plugin automatically.
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```
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le issue apache aa.com www.aa.com,user.aa.com
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```
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All the other arguments are the same with previous.
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# Use DNS mode:
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Support the latest dns-01 challenge.
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```
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le issue dns aa.com www.aa.com,user.aa.com
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```
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You will get the output like bellow:
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```
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Add the following txt record:
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Domain:_acme-challenge.aa.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.aa.com
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Txt value:9ihDbjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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```
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Please add those txt records to the domains. Waiting for the dns to take effect.
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Then just retry with 'renew' command:
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```
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le renew aa.com
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```
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Ok, it's finished.
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#Automatic dns api integeration
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If your dns provider supports api access, we can use api to automatically issue certs.
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You don't have do anything manually.
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###Currently we support:
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1. Cloudflare.com api
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2. Dnspod.cn api
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3. Cloudxns.com api
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4. AWS Route 53, see: https://github.com/Neilpang/le/issues/65
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More apis are coming soon....
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If your dns provider is not in the supported list above, you can write your own script api easily.
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For more details: [How to use dns api](dnsapi)
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# Issue ECC certificate:
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LetsEncrypt now can issue ECDSA certificate.
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And we also support it.
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Just set the `length` parameter with a prefix `ec-`.
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For example:
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Single domain:
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```
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le issue /home/wwwroot/aa.com aa.com no ec-256
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```
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SAN multiple domains:
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```
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le issue /home/wwwroot/aa.com aa.com www.aa.com,cp.aa.com ec-256
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```
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Please look at the last 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 letsencrypt yet.)
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#Under the Hood
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Speak ACME language with bash directly to Let's encrypt.
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TODO:
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#Acknowledgment
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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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3. letsencrypt: https://github.com/letsencrypt/letsencrypt
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#License & Other
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License is GPLv3
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Please Star and Fork me.
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Issues and pull requests are welcomed.
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