New technologies for going Online  

Are there possibilities for saving online-cost? 

by Kurt Berger, Florian Gnägi, Marc Stampfli & Ralf Gall 

Introduction: by Marc Stampfli
Where to go:
56k modem
cable TV
home of the seminar
For teleworking that goes beyond e-mail & World Wide Web you will need high density, high capacity and high-speed telecommunications links to your company or provider instantly - anywhere and anytime in the world. So far we don't have this ideal situation yet, but let's have a look at the different technologies we have for going online. 
Remote Access: 
 For going online, you have at least three different modes you can chose from. Most companies only support one of these modes. All the modes depend on the technology you use for going online.
Remote Control:
 We talk about "Remote Control" if there is a host & a client and you work on the host instead of your own connected computer.  You have to possibilities to use full CPU capacity of the host, because the applications are running on it and only the monitor image is transferred (i. e. X-Windows, Telnet). 

Because the monitor image is transferred, you need a quite fast line to your remote host if you are running graphic intensive applications such as Windows 95/Windows NT. Otherwise if you stay to plain text, you just need a modem for character transmission which is really fast enough today for ASCII-oriented applications. 

Remote Node:
 If your computer gets really connected to a LAN as a remote client, we talk about "Remote Node". Your computer has the same privileges and possibilities like your local client in the company. But be aware, if you work with large files, they need to be downloaded first - what would take quite a while for a big file (it can take you minutes or even hours). Even more, all your applications you want to run, need to be installed first on your computer. 

There are different specific applications like Lotus Notes, Microsoft Exchange, etc. which have their own possibilities for connecting to the LAN, but then you are limited to the use of the specific program.

Remote Access with Internet:
With Internet you have a lot of different possibilities. 

You can use native Internet Programs for your work like e-mail, Telnet, FTP, WWW, WAIS, News, Gopher, etc. But most of these tools are not explicitly made for teleworking, but for one specific task. 

"Remote Control" techniques are also possible with the internet. They work the same as if you would connect direct to the host - but mostly you have an even more limited transmission bandwidth  during rush-hours. Telnet can be used for connecting to old teletype hosts, which are still very common and which have a splendid performance for teleworking today - but you have to forget about graphics! 

You can connect as a Remote Node using the Point to Point Tunneling Protocol which allows you to tunnel your "LAN-Traffic" through the Internet. The LAN-Packets are encrypted & signed before sent over the internet. (Like a safe tunnel through the mean and dangerous Internet.) 

  design by Florian Gnägi