WSM Reference Guide - WatchGuard Technologies
WSM Reference Guide - WatchGuard Technologies
WSM Reference Guide - WatchGuard Technologies
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CHAPTER 2<br />
MIME Content Types<br />
Software applications use content type headers to identify the type of data they receive. Content type<br />
headers tell the software application how to correctly identify and display video clips, images, sound, or<br />
other data. Usually, people are most familiar with the MIME content types used in e-mail.<br />
The <strong>WatchGuard</strong> HTTP proxy can use content type headers to know if it must allow or deny HTTP traffic.<br />
Use Policy Manager to configure an HTTP proxy policy to allow or deny content types. Content types are<br />
also used in the SMTP and FTP proxies. This chapter contains a list of the MIME content types included in<br />
a <strong>WatchGuard</strong> configuration file.<br />
You can use wildcards to select all subtypes of a type, and thus deny all or allow all of that MIME type.<br />
For example, to allow all content types that are text (including text/enriched, text/plain, and others), use<br />
the content type text/*.<br />
New, registered MIME content types appear regularly. <strong>WatchGuard</strong> recommends frequent checks of an<br />
online source for the most current list. One source of current MIME types is:<br />
www.iana.org/assignments/media-types/<br />
Note that software applications can use incorrect content types, or content types that are not registered,<br />
To make a request to add a new content type in the <strong>WatchGuard</strong> list, send an e-mail to:<br />
manual@watchguard.com<br />
Type Subtype <strong>Reference</strong> (where available)<br />
application *<br />
application activemessage Shapiro<br />
application andrew-inset Borenstein<br />
application applefile Falstrom<br />
application astound<br />
application atomicmail Borenstein<br />
application cals-1840 RFC 1895<br />
application commonground Glazner<br />
application cybercash Eastlake<br />
application dca-rft Campbell<br />
application dec-dx Campbell<br />
<strong>Reference</strong> <strong>Guide</strong> 7