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Old 03-02-2005, 12:41 PM   #1 (permalink)
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Default Firewall setting under "Options"

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Every since I reloaded the OS on my Nextel 7520 I can no longer change the Firewall setting. It is Enabled and gives me no option to change it. Before I wiped the unit and reloaded the OS I had the ability to Enable or Disable it. Can anyone shed any light on what I need to do to get this option back?

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Old 03-08-2005, 10:43 PM   #2 (permalink)
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Are you registered on a BES? Or it may be Nextel's new BWC...

The BES (and maybe the newer BWC 4.0) can remotely force this setting to be enabled...
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Old 03-08-2005, 11:34 PM   #3 (permalink)
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Just curious, but what exactly does the firewall do on a blackberry. I see the option on my 7100g and it was turned off by default. I didn't want to mess anything up, so I left it alone. I understand what a firewall does on a computer, and I'm guessing it's similar on a blackberry, but is it really necessary? And is there any downside to turning it on?
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Old 03-09-2005, 12:31 AM   #4 (permalink)
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A firewall is very useful on BlackBerry for high security environments, because BlackBerry uses government-quality security. (Encryption, etc).

Firewall is mainly used to authorize/de-authorize outgoing connections from third party networking applications, such as Verichat, WebMessenger, Reqwireless, etc. You get prompted whenever an outgoing connection is made for the first time from a 3rd party application.

Security Tidbit Facts: In fact, it's possible for BES users to remotely kill their BlackBerries when they are stolen. A password can be forced to be entered into the BlackBerry every 15 minutes too -- and if the wrong password is entered 10 times, the BlackBerry destroys the contents of its memory (lobotomy feature). There are signed API's which means you can't write a program that intentionally reads the addressbook, without that $100 signing key from RIM. Nearly impossible to write a virus for BlackBerry... And attempting to disassemble a BlackBerry and reading the flash chips directly, just yields useless encrypted data if you don't have the password. (Content Protection must be enabled in Options->Security) ... Even CIA was impressed at the BlackBerry security.
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