You just upgraded your BlackBerry device to OS 6, then installed Facebook and Twitter app into the new OS 6. The default tone of both Facebook and Twitter app is ‘Sanguine Remix’ with silent volume mode for Twitter app. Note that the default tone may be different among BlackBerry device types.
In this article I want to show on how to block Facebook using Mikrotik in three steps. We will use Web Proxy feature included in Mikrotik. We assume the LAN (Local Area Network) address is 192.168.56.0/24 and the IP address of ‘ether1’ which facing to the LAN is 192.168.56.254.