Here’s a quick how-to guide on how you can track email to it’s originating location by figuring out the email’s IP address and looking it up. I have found this to be quite useful on many occasions for verification purposes since I receive lots of emails daily due to my blog. Tracking the IP address [...]

There are two ways of restricting access to documents: either by the hostname of the browser being used, or by asking for a username and password. The former can be used to, for example, restrict documents to use within a company. However if the people who are allowed to access the documents are widely dispersed, [...]