![]() ![]() Portable devices are often taken outside the network and connected directly to the Internet, without adequate protection between the device and security threats. Some attacks might successfully penetrate the perimeter firewall, and at that point what can stop it? Other attacks might originate from inside the network, such as malware that is brought in on portable media and run on a trusted device. You might also check if you have an Acceptable Use Policy for the Internet - that may give some clues at what is filtered.Although network perimeter firewalls provide important protection to network resources from external threats, there are network threats that a perimeter firewall can't protect against. Network admins are human!įor a definitive answer, you'll need to ask your network admins. Modern (third generation) firewalls can do lots of fancy things.Īlso, of course, it is possible that they do not want DropBox to get though, but have made a mistake in their rule set. ![]() Or they might only block the downloading of executables from your web browser, and allow dropbox through. Or, they might allow secure HTTPS traffic, which Dropbox uses, but not regular HTTP traffic. More likely is that they have a rule that looks at the site you are connected to. They might have done this by writing a rule that looks at the URL (modern firewalls can do this). Or they may have concluded that an executable file you have deliberately put in your dropbox is more likely to be safe than something you downloaded from the Internet. Perhaps an important business process (or a senior person in the business, alas!) requires Dropbox. Your admins have probably written a set of rules designed to allow DropBox traffic through. These rules are usually written by your network administrators, and, depending on the sophistication of the firewall, can be very simple or very clever. A firewall is "a device or set of devices designed to permit or deny network transmissions based upon a set of rules". ![]()
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