Can files with modified extensions be filtered

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Some types of files, such as TXT files, can bypass file filtering detection by modifying their extensions.

Other related questions:
Name extensions of different types of files on S series switches
For S series switches (except S1700 switches), the name extensions of different types of files are as follows: Web page file: .7z/.web.zip License file: .dat Configuration file: .cfg or .zip System file: .cc Patch file: .pat

File name extension of the USG9500 system software
The system software file name extension is .cc.

File name extension of the USG6000 system software
The system software file name extension is .bin.

Can the GTL license file of the AR router be manually modified
The GTL license file is encrypted. Once it is being manually modified, it cannot be used any more.

Does the deep security defense function of an AR router need a license
Whether the deep security defense function of an AR router needs a license is subject to the router model and software version. For details, see the product manuals of corresponding software versions. For example, for a router with the V200R007 software, choose IPS Configuration > Configuration Notes and URL Filtering Configuration > Configuration Notes in the Security Configuration Guide > Deep Security Defense Configuration through the URL: AR100&AR120&AR150&AR160&AR200&AR1200& AR1600&AR2200&AR3200&AR3600 V200R007 Product Documentation.

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