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The ADN Connection, January/February 1996 The A3c Connection
Jan/Feb 1996 Contents The ADN Post FTP, the Protocol A Quick Introduction to FTP
A Real Life FTP Example: Web Publising Without UNIX UNIX World Wide Web Tools Departmental Web Pages About the ADN Connection

The ADN Post

 
The Campus Beat
Everyone
 
     
 
     
Update on the ITIP
  (The Instructional Technology Improvement Program, that is.) We've installed over 2000 new ADN-ii connections since the Network Initiative started in July 1995, and over half of the faculty and staff in the phonebook now have listed email addresses. The free personal computers have been arriving, and several hundred will have been installed by the time you read this. And remember, if you've been given one of the free ITIP machines, you can have ADN Server Services on it free of charge for a year, giving you free -- and legal -- access to the newest versions of a wide range of popular personal computer software. The only catch is that you have to ask for it. If you're interested, contact your REACH representative.
 
     
Dialin-5, the Speed Demon
  The ADN dialin modems are always busy. So what else is new? Well, we are making some improvements that should help quite a bit. (For a while, at least!)
  • On Dialin-1, we're replacing our 9600 baud modems with 14,400 baud modems.
  • On Dialin-4, we're replacing our 14,400 baud modems with 28,800 baud modems.
  • Dialin-5 is new, sort of. The lines aren't new; they used to be ADN-CMS only lines. We're converting them to full Internet access lines with 28,800 baud modems.
  • Dialin-Express-1 are also former CMS-only lines, and also offer full Internet access and 28,800 baud modems. But these 16 lines are strictly for short-term connections -- 10 minutes maximum per dialin session.
  • The remaining 12 ADN CMS-only lines are also being upgraded, to 9600 baud modems.
Don't worry about going over Dialin-Express's 10 minute limit; we'll keep track of the time for you. (Which is to say that we'll cut off the connection after 10 minutes, and, unfortunately, we can't give you any warning.) We hope that you will always be able to find a line open on Dialin-Express for quick but important tasks like checking or sending mail with Eudora.

We are not fooling ourselves, though. All of these upgrades are stopgap measures. In the short run, we will continue upgrading our dialin service as our budget allows, to keep home users as happy as possible for a reasonable cost. But in the long run, you'll get the high-speed Internet service that you need from your phone company, your cable TV service, or a commercial Internet provider. Even now, many people in the suburbs opt for a commercial service (at around $15-$25 per month) because it is cheaper, faster, and they can more reliably get an open modem.

Please remember that your status as a member of the UIC community entitles you to use one dialin modem at a time. Given the demand for this service, it would be quite unfair for you to tie up two or more modems simultaneously (and you could be, without your knowing it, if your ADN netid and password are in a dialin script on a shared personal computer). To be sure you don't inadvertently abuse this service, don't give your netid and password to anyone else, and change your password every now and then.

 
     
uic.edu and uicvm.uic.edu Are Not the Same
  It used to be that all incoming mail addressed to generic UIC electronic mail addresses of the form netid@uic.edu was sent to UICVM, our IBM CMS mainframe, and a server on CMS took care of resending the mail to the netid's actual electronic mail address. A consequence of this -- really a feature-like bug -- was that uic.edu became a de facto alias for UICVM. Thus it was possible to specify the host name uic.edu when TELNETing or FTPing to UICVM, rather than using its proper name, uicvm.uic.edu. This was never supported and is no longer true. So if you've been using this shortcut, please be aware you'll have to begin referring to UICVM by its proper name -- uicvm.uic.edu -- now.

Similarly, if you use your CMS mainframe account for email, please don't tell your correspondents that your address is your "U-number" userid at uic.edu. It isn't, even if it seems to work. If your U-number is U12345, then the proper email address for your CMS account is U12345@uicvm.uic.edu, not U12345@uic.edu.

Of course, you can have and use a spiffy netid-type email address like adabyron@uic.edu if you want, even if your mail is sent to your U-number on UICVM. Or for that matter to any other machine, including one not owned by the Computer Center. First, get a netid if you don't already have one. (You do if you're a student; we assigned you one. If you're faculty or staff, you don't until you choose one. If you don't have one yet, your department's Staff Directory contact person will help you select one.) Then use phupdate on tigger or icarus to specify the actual email address -- account id and host name -- that you want your mail delivered to. (Login to your ADN UNIX account, enter: phupdate and follow the instructions.)

 
     
Tigger Is Bigger
  Tigger, our IBM RS/6000 model 590 UNIX workstation, has been getting a workout lately. Lots of people found it comfortable for mail, Web publishing, news reading, and serious computations. So, to continue our growth, and to provide a place for new users, we've replaced tigger with a new IBM RS/6000 model J30. People using tigger should not notice any difference other than improved response time. The new machine has four CPUs and 0.5Gb memory, and is running exactly the same operating system as the model 590 did. The J30's CPUs will be upgraded from 601 chips to 604 chips in the next few months. Also, the J30 has room for us to add four additional CPUs and more memory when we need it.

(In case you're wondering, the old tigger will be renamed and used as a server for various Listserv lists, our internal accounting database, some Web service, and a few other things. It won't have any general user accounts on it.)

So if you've been using tigger, just continue as you have been and let your smile grow wider. And if you happen to run into one of your colleagues still using CMS, you can let on why you're smiling.

  
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2002-7-15  connect@uic.edu
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