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Deny network access to all or selected apps.
When mode Deny is selected, all apps have network access except for those specified.
When mode Allow is selected, only the specified apps have access.
Use of this action overrides and replaces the effects of any previous use.
Notes:
* this action is implemented via a VPN local to the device and cannot be used in combination with other VPNs.
* some devices will clear the users confirmation of Tasker's permission to setup a VPN after every boot
* the icon which Android shows in the status bar cannot be avoided
* Tasker does not examine the contents of any network packet