# documentation:2.0:authwebid
Keywords: documentation,2.0,authwebid

# WebID

Authentication | Users | Password
--- | --- | ---
✔ | ✔ |

## Presentation

WebID is a way to uniquely identify a person, company, organisation, or other agent using a URI and a certificate.

You need Web::ID package.

## Configuration

In Manager, go in `General Parameters` > `Authentication modules` and choose WebID for authentication module. You can also use WebID as user database.

Then, go in `WebID parameters`:

- Authentication level: authentication level for this module.
- WebID whitelist: list of space separated hosts granted to host FOAF document. You can use '*' character. Example :

      *.partner.com

If you use WebID as user database, declare values in exported variables :

- use any key name you want. If you want to refuse access when a data is missing, just add a “!” before the key name
- in the value field, set the field name. Take a look at http://xmlns.com/foaf/spec/#sec-crossref. Example :

      name => foaf:name

See also exported variables configuration.

### Apache configuration

Portal host must be configured to use SSL and must ask for client certificate. It is recommended to use optional_no_ca since WebID doesn't use certificate authorities :

    <VirtualHost _default_:443>
    ServerName auth.example.com
    SSLEngine on
    SSLCertificateFile ...
    SSLCertificateKeyFile ...
    SSLVerifyClient optional_no_ca
    ...
    </VirtualHost>

### Tests

To test this, you can build your own WebID certificate using one of :

- Web::ID::Certificate::Generator
- my-profile.eu
- gen-webid-cert.sh