What is Hostname in the login window?
You need to specify a Hostname in the login window, it could be an arbitrary string (which contains only letters and digits), such as home, work, office and etc. It should have no more than 8 characters. You can change the hostname anytime when you log in. It should uniquely identify a specific computer of yours, i.e. you should assign different hostname to different computers that belong to you, but your computer and your friend’s computer can have the same hostname, (just like your children should all have different first name, while your child and your friend’s child can have the same first name). The hostname is part of the URL of the SecureShares on this computer. See this for detail.