Crestron TPMC-8L Guide d'installation télécharger pdf (Page 59)

Crestron TPMC-8L Isys i/O™ 8.4” Touchpanel Media Center

Security Infrastructure

Since the TPMC-8L does not use a traditional hard drive but rather an image that

gets restored every time the touchpanel is rebooted, any virus infection is cleared

immediately after a reboot. However, using the currently available tools and

techniques, Crestron has provided an infrastructure that protects against possible

virus infections.

1. Executables/Scripts brought in on external media

The implementation of the TPMC-8L has restrictions on starting any application

or script. The only applications that can be started are those allowed by Crestron

and these can only be started from the Crestron project.

2. Downloaded Program/Script

The browser is customized in such a way that files cannot be downloaded. The

only files the browser can open are the files it has plug-ins for, such as PDF, etc.

The user cannot change the options, as this dialog box has been disabled.

3. Browser Hijack and Browser vulnerability

Crestron has patched all currently known hijacks and vulnerabilities. Future

updates can be downloaded from the Crestron website.

4. Email Viruses

There is no e-mail client installed on the TPMC-8L, so email-based viruses

cannot be executed.

5. Viruses that attack web/FTP servers

The TPMC-8L does not run a web or FTP server and is therefore not listening to

port 21 or 80. The only ports the system listens to are the ports registered to

Crestron.

6. Virus from other machines on the network

Since drives on the TPMC-8L can be shared on the network, it is possible that a

virus can write itself to files/folders on these shares. Our recommendation

therefore is to share as "Read-Only," so that viruses cannot attach themselves to

files on the TPMC-8L.

7. ActiveX and Java

The TPMC-8L has ActiveX disabled and has no Java Virtual Machine installed.

These applets cannot run on the TPMC-8L.

NOTE: While browsing the Internet with the TPMC-8L, clicking on a link may

cause a message box titled "Restrictions" to appear that contains the text "This

operation has been cancelled due to restrictions in effect on this computer. Please

contact your system administrator." If this message appears, checking Enable Popup

Windows in the “Embedded Apps” section of the setup menu may correct this error.

Other restrictions may also cause this error, so this may not prevent all occurrences.

NOTE: Security settings and restrictions can be changed via the Embed Apps

button on the setup menu. Refer to “Embed Apps (Embedded Applications)” which

starts on page 18 for details.

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Crestron TPMC-8L Guide d'installation Page 59

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