A Lotus Notes Domino ECL is used to determine whether the signer of the code being executed is allowed to run that code from a particular workstation. Also, if the signer can run the code, then the Domino ECL defines the level of access that the code has to various workstation functions.
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Basically, you can use a Domino ECL very effectively to restrict access to Lotus Notes database elements, the workstation's file system and the execution of certain operations. For example, it's possible to use an ECL to allow LotusScript programs to access the file system, but to simultaneously deny Java applets the same access.
When a Lotus Notes database is opened and programming logic is executed, the signature ID last used to sign an element is checked against the ECL to determine whether that Lotus Notes ID has been granted permission through the ECL to run. If permission has been granted, either implicitly (default) or explicitly (user named in the ECL) for a particular task, the action is allowed. If not, the action is disallowed.
A workstation can be configured to enable the Lotus Notes user to maintain the ECL, or the Domino administrator can maintain the ECL centrally. Follow these steps to configure a Lotus Notes Domino user-controlled ECL:
- Select File -> Security -> User Security from the main menu.
- Enter your password when prompted for it.
- Click on the "What Others Do" button, which will then open the dialog box. Now, expand the list of ECL options.
- Choose the type of ECL that you want to configure:
- "Using workstation"
- "Using applets" or
- Choose an entry to configure in the "When Code Is Signed By" list or click the "Add" button to enter a new Lotus Notes user.
- Set the appropriate security options for the current entry.
- Click "OK" to update the ECL.
- Click "OK" to close the User Security dialog box.
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