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Merge pull request #175 from xi2/update-readme-sudo

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Update README sudo section
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xenolf 2016-03-28 17:56:08 +02:00
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@ -41,11 +41,12 @@ When using the standard `--path` option, all certificates and account configurat
#### Sudo
The CLI does not require root permissions but needs to bind to port 80 and 443 for certain challenges.
To run the CLI without sudo, you have three options:
To run the CLI without sudo, you have four options:
- Use setcap 'cap_net_bind_service=+ep' /path/to/program
- Pass the `--http` or/and the `--tls` option and specify a custom port to bind to. In this case you have to forward port 80/443 to these custom ports (see [Port Usage](#port-usage)).
- Pass the `--webroot` option and specify the path to your webroot folder. In this case the challenge will be written in a file in `.well-known/acme-challenge/` inside your webroot.
- Pass the `--dns` option and specify a DNS provider.
#### Port Usage
By default lego assumes it is able to bind to ports 80 and 443 to solve challenges.