Techno Page - By Harendra
If you don't have direct access to the Internet, you're
not alone. Many of the world's countries with Internet connections
have only e-mail access to this worldwide network of networks.
But if you
think that sounds limiting, read on. You can access almost any Internet
resource using e-mail. Maybe you've heard of FTP, Gopher, Jughead,
Usenet, Finger, Whois, Nslookup, Traceroute, and the World-Wide
Web but thought they were out of your reach because you don't have
a direct connection.
Not so! You
can use simple e-mail commands to do all of this and much more on
the Internet. And even if you do have full Internet access, using
e-mail services can save you time and money. If you can send a note
to an Internet address, you're in the game.
A Short Aside...
"What is the Internet?"
If you're the
type that wants to skip the preliminaries and just dig in, I'm not
going to bore you with details. Instead, I'll just offer up my condensed
definition of the Internet, and encourage you to find out more as
you gain skill at using the tools described.
- A world-wide collection of computer networks, connecting government,
military, educational and commercial institutions, as well as private
citizens to a wide range of computer services, resources, data and
information. A set of network conventions and common tools are employed
to give the appearance of a single large network, even though the
computers that are linked together use many different hardware and
FTP BY EMAIL
FTP stands for "file transfer protocol", and is a
means of accessing files that are stored on remote computer systems
(sites). Files at FTP sites are typically stored in a tree-like
set of directories (or nested folders for Mac fans), each of which
pertains to a different subject.
an FTP site using a "live" internet connection, one would
specify the name of the site, login with a user-ID & password,
navigate to the desired directory and select one or more files to
be transferred back to their local system.
Using FTP by
e-mail is very similar, except that the desired site is reached
through a special "ftpmail server" which logs in to the
remote site and returns the requested files to you in response to
a set of commands in an e-mail message.
Using FTP by
e-mail can be nice even for those with full Internet access, because
some popular FTP sites are heavily loaded and interactive response
can be very sluggish. So it makes sense not to waste time and connect
charges in these cases.
To use FTP
by e-mail, you first need a list of FTP "sites" which
are the addresses of the remote computer systems that allow you
to retrieve files anonymously (without having a user-ID and password
on that system).
There are some
popular sites listed later in this guide, but you can get a comprehensive
list of hundreds of anonymous FTP sites by sending an e-mail message
to the internet address:
Don't forget to include these lines in the body of the note.
(21 lines omitted for brevity).
You will then receive (by e-mail) 23 files which comprise the "FTP
Site List". Note that these files are each about 60K, so the
whole lot will total over a megabyte! These files haven't been updated
since Nov '97 but they are still a valuable resource for FTP sites
you might want to get is "FTP Frequently Asked Questions"
which contains lots more info on using FTP services, so add this
line to your note as well:
After you receive the site list you'll see dozens of entries like
this, which tell you the site name, location and the kind of files
that are stored there.
Site : ftp.cs.wisc.edu
GMT : -6
Date : 23-Jul-95
Source : mail
Alias : fyvie.cs.wisc.edu
Admin : firstname.lastname@example.org
Organ : University of Wisconsin, Madison, Wisconsin, CS dept.
System : Unix
URL : ftp://ftp.cs.wisc.edu/
Comment: server can (de)compress, tar files and directories; RoadMap
contains list of
directories; files from shorty.cs.wisc.edu
Files: 007; afs-tools; AIX; Approximation Theory; bolo; CDIFF; computer-vision;
condor; connectivity table; coral; Exodus; galileo; ghost; goodman;
HP; list-archives; machine learning; markhill; math prog; mcplib;
Novell; par-distr-sys; paradise; shore; sohi; spim; spimsal; swartz;
tech-reports; Ultimate Frisbee files; UW; warts; wisc; wwt; X; xunet
Hang on. We've just only started. I encourage you to read this entire
document first and then go back and try out the techniques that
are covered. This way, you will gain a broader perspective of the
information resources that are available, an introduction to the
tools you can work with, and the best methods for finding the information
you want. And you will find all that in the coming weeks on Techno
Page. So keep your eyes glued and don't miss out.
(To be continued next week)
Advance (GBA) is set to get serious competition
at last, with Nokia unveiling a new device called the N-Gage - a
handheld console styled mobile phone which is designed specifically
to act as a challenge to Nintendo's dominance of the market.
The new device
bears an attractive brushed metal finish and is bristling with buttons
thanks to the requirements of functioning as a mobile phone. It
will be introduced in February 2003, and games for it will be distributed
on solid state memory cards.
As one might
expect, a key selling point for the N-Gage will be online and multiplayer
functionality thanks to its mobile phone functionality. The system
will also carry a Bluetooth chip, enabling wireless multiplayer
gaming over short distances, and Nokia is talking up the possibilities
of gaming over the mobile phone networks.
for N-Gage remains a concern, although Sega has already signed on
to create games for the device, and if Nokia gets the publishing
revenue models on the system right, it may well win widespread support
from publishers concerned by the tight margins on the GBA.