The American Registry for Internet Numbers (ARIN) is the organization tasked with handling the allocation of IP addresses and Dropbox’s list is located at:

If your corporate firewall has the ability to deny outbound requests to an IP address range you can add these to its ruleset. Use your Firewall to block IP ranges.ĭropbox operates their services from a comparatively limited number of IP addresses. Null route DNS for Dropbox requests.ĭepending on your DNS setup, you can set a custom record for within your network that will prevent Dropbox client apps and the website from being accessible. With the above in mind, we present to you the following methods that you can use to detect and block Dropbox on your own network, in order to keep your files, permissions, and collaboration secure.

It was impossible to safeguard data as students, administrators and professors left the organization (potentially taking large amounts of personally identifiable information with them).It was difficult to establish cleanly defined groups that needed to collaborate (the Econ 203 Fall Semester class).It was difficult to establish who owned which documents (an important issue when writing your dissertation).These unmanaged file sharing points throughout their network were causing an ever growing list of increasingly serious complaints from their users:

The University of Liverpool recently found over 3,000 individual instances of Dropbox running on their network.

How to find dropbox links