Opera Unite

Opera Software's announcement that it's going to bundle Opera Unite, an easy-to-use web server with content-sharing applets, with the Opera 10 web browser sounds great — at first. Upon closer inspection, though, there could be some real security headaches.

For now, Opera Unite, which is available for Linux, Mac OS X and Windows, is alpha software. That means it breaks. A lot. (We experienced a number of disconnects and freezes.) Still, we were able to get it to work on systems running Windows XP and SimplyMepis 8.0, a Debian Linux distribution.

Opera Unite: What is it?

With Opera Unite, you can, in theory, share files on your computer — photos, MP3 audio files — with your friends or the entire world. You can also use applets that let you, for example, host real-time chats or discussion forums. Any user, no matter what browser they use, can access whatever you decide to share.

Opera Unite: How does it work?

Opera Unite is both a web browser and a web server. With the included JavaScript applets, you can easily set up what you want to share and what services you want to provide, such as an online discussion forum.

Users don't directly connect to your PC — instead, they hook up with Opera's web proxy servers which, in turn, pull the data from whatever folders you elect to share. For example, with Opera Unite you can share all your music or just one directory from your music library.

To make this happen, your PC and its internet connection have to have port 8840 open. To let others get to your computer, you tell them your Opera Unite URL. The URL is made up of the name of your PC, your Opera user name, the name of the Unite service that you are using (for example, file sharing) and your password. For example:

http://yourPC.Operausername.operaunite.com/servicename/access_content/password

Opera Unite: What's cool about it?

Opera Unite lets you share pretty much anything you want with friends and family without having to upload anything to a third-party service. Want to show the folks the photos of the new baby?

Just share the new baby photo folder with Opera Unite, send them the URL and they'll soon be saying she looks just like her aunt Alice.

Opera Unite: What needs to be fixed?

The security. The password is part of the URL, and Opera Unite doesn't use an encryption protocol, so anyone snooping for a Unite connection can pick up the password.

This isn't a new problem — or, for that matter, a new concept. Back in the mid-'90s, when the internet was becoming popular, many internet software kits included basic tools to set up your own site. That didn't last long, though, because ordinary users are about as well equipped to secure a website as ordinary drivers are to race in Formula 1. With any luck, future versions of Unite will offer better options.