# Configure the Community Component

This section describes how to set up Community to produce the `SecurityInfo` string for you automatically.

You configure the Community component in the IDOL Server configuration file. You must set up the user security type for the Community component in a similar way to the one that you set up for the Content component. For example:

    [UserSecurity]
    DefaultSecurityType=0
    DocumentSecurity=True
    ...
    6=NT

    ...

    [NT]
    CaseSensitiveUserNames=False
    CaseSensitiveGroupNames=False
    // Authentication
    Library=C:\IDOLServer/IDOL/modules/user_ntsecurity
    EnableLogging=True
    // Group server
    DocumentSecurity=True
    V4=True
    GroupServerHost=127.0.0.1
    GroupServerPort=3057
    GroupServerPrefixDomain=True
    SecurityFieldCSVs=username,domain
    Domain=DOMAIN
    DocumentSecurityType=NT_V4

The `DocumentSecurityType` parameter links the `[NT]` security string section to the IDOL Server security type.

The `GroupServerHost` and `GroupServerPort` parameters configure the Community component to collect group membership information from your OmniGroupServer.

You might also need to add the `GroupServerPrefixDomain` and `Domain` parameters, depending on how the groups appear in your OmniGroupServer. When OmniGroupServer checks group membership, it uses exact string matches. If the group information in OmniGroupServer contains a domain prefix and the request from the Community component does not, use `GroupServerPrefixDomain` and `Domain` to ensure that OmniGroupServer uses the correct domain prefix.

TIP: You can see the actions that OmniGroupServer receives by looking at the request log:

    http://localhost:3057/action=grl

As an alternative to running the `grl` action, you can use the Logs page in the Monitor section of IDOL Admin to view the Request log.

The Community component does not send any requests until you add a user and request the security info string.

To add a user, use the `UserAdd` action (for more information, refer to the IDOL Server Reference).

After you have added the user, you can retrieve the `SecurityInfo` string by sending the `UserRead` action for that user with the `SecurityInfo` parameter set to `True`.

TIP: As an alternative to running actions, you can use the Users page in the Control section of IDOL Admin to set up and manage users.

TIP: To troubleshoot issues with the security information, you can use the `UserDecryptSecurityInfo` action to decrypt a security string, for example to check that it contains the right permissions and restrictions.

## SecurityInfo Token Expiration

You can configure SecurityInfo tokens to expire after a particular time, by using the `SecurityTokenLifetime` configuration parameter. This parameter specifies the total lifetime of the token, after which a user must request a new token (for example, by logging in to an application again).

You can also configure `SecurityTokenIdleTime` and `SecurityTokenRefreshInterval` to expire tokens when a user becomes inactive. When you set these parameters, Community can refresh a token that is close to expiration, up to the configured `SecurityTokenLifetime`. The token also expires if the user does not send any requests before the specified `SecurityTokenIdleTime`.

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