You can edit an existing Custom Media Type to change its details.
The Custom Media Type allows you to define a hexadecimal signature that can be identified at the start or end of a media type file and the offset, in bytes, from the start or end of the file. See About Custom Media Type Signatures for further information.
When you have finished modifying your content security policy you must apply the configuration for any changes
to take effect. If the |
You can create a Custom Media Type to reference from a Which Media Types clause in the "What To Look For?" section of a content rule. To use a Custom Media Type in a content rule, reference it from a Which Media Types clause in the "What To Look For?" section of a content rule. |