49 lines
1.3 KiB
Markdown
49 lines
1.3 KiB
Markdown
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---
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title: "Examples"
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date: 2019-03-03T16:39:46+01:00
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draft: false
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---
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## CLI Examples
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Assumes the `lego` binary has permission to bind to ports 80 and 443.
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You can get a pre-built binary from the [releases](https://github.com/xenolf/lego/releases) page.
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If your environment does not allow you to bind to these ports, please read [Port Usage](usage/cli#port-usage).
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### Obtain a certificate
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```bash
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lego --email="foo@bar.com" --domains="example.com" --http run
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```
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(Find your certificate in the `.lego` folder of current working directory.)
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### To renew the certificate
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```bash
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lego --email="foo@bar.com" --domains="example.com" --http renew
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```
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### To renew the certificate only if it expires within 45 days
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```bash
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lego --email="foo@bar.com" --domains="example.com" --http renew --days 45
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```
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### Obtain a certificate using the DNS challenge
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```bash
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AWS_REGION=us-east-1 \
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AWS_ACCESS_KEY_ID=my_id \
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AWS_SECRET_ACCESS_KEY=my_key \
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lego --email="foo@bar.com" --domains="example.com" --dns="route53" run
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```
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### Obtain a certificate given a certificate signing request (CSR) generated by something else
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```bash
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lego --email="foo@bar.com" --http --csr=/path/to/csr.pem run
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```
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(lego will infer the domains to be validated based on the contents of the CSR, so make sure the CSR's Common Name and optional SubjectAltNames are set correctly.)
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