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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# Certificate name (CN) tab

In this screen, custom certificate name categories can be created, and may be useful in SSL filtering (Configuration > Security policy > SSL filtering module).

The screen is split into two parts - one for custom certificate name categories, and the other for certificate names added to a category.

## Grid of custom certificate name categories

The following operations can be performed:

Add a customized category | Creates a new category. Clicking on this button creates a new line, allowing you to name the category and add comments if necessary.
Delete | Deletes an existing category. Select the category in question, then click on the button. If the category is in use, a warning message will ask you to confirm the operation.
Check usage | Checks whether a category is being used in a configuration. Select the category in question, then click on the button. The results of the check are shown in the module tree.

The grid includes the following:

Certificate name category (CN) | Name of the category.
Comments | Description of the category.

NOTE
The number of characters for certificate name categories is restricted to 255.

## Grid of certificate names in a category

The contents of the grid of certificate names (right) can be refreshed by selecting a custom certificate name category from the grid on the left.

The following actions can be performed in the grid:

Add a certificate name | Adds a certificate name to a category. Clicking on this button creates a new line, allowing you to name the certificate and add comments if necessary. The name can contain a wildcard (*) as long as it is placed at the beginning of a URL and followed by a dot.
Delete | Deletes a certificate name from a category. Select the name of the certificate in question, then click on the button.

The grid includes the following:

Certificate name (CN): | Name of the certificate. It can contain a wildcard (*) as long as it is placed at the beginning of a URL and followed by a dot.
Comments | You can add a comment in this field to describe each name.

The list of Characters allowed and syntax restrictions apply only to certificate names. Wildcards (*) can be used to replace any character sequence, but must be placed at the beginning of a URL followed by a dot.

EXAMPLE
*.company.com makes it possible to include all sub-domains of company.com (e.g. mail.company.com or www.company.com).