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May 4, 1999
_______________________________________________________________________
Visit the Happy Hacker site at
http://www.happyhacker.org
_______________________________________________________________________

Happy Hacker Digest, Windows edition

Opening Comments
URLs
Reader Submissions
More Netcat tricks
Foolproof Challenge
Coming Out Of Your Shell
Perl Corner
Editor's Comments

******************************************************************
Opening Comments

Okay, I've been busy at work, so all of the submissions really help a 
lot.  I don't have time to test everything...but I put most of what is 
sent to me into the HHD b/c peer review is a cornerstone of the Open 
Source project...having someone put another set of eyes on some code and 
suggesting ways to improve it is how Linux came to be, after all.  If 
you have submitted something that hasn't made it into the HHD, check 
your email...I may have sent it back asking you to be more clear about 
something, or explain something a little better.  I'm just looking for 
quality submissions...and remember, the long stuff is best submitted as 
a URL...thanks.

******************************************************************
URLs

"Lisa" <Aquarian3@pisces7.freeserve.co.uk> sends in a URL for a site to 
get rid of all of those little annoyances: http://www.annoyances.org

Microsoft's Q174904 (Information about TCP/IP Port Assignments)
http://support.microsoft.com/support/kb/articles/q174/9/04.asp

Microsoft's TCP/IP changes to prevent SYN Flooding (URL wraps)
http://support.microsoft.com/support/ntserver/serviceware/nts40/371kroaa.asp

From "Nick C" <nuklear_bomb@hotmail.com>:
http://www.hackcity.com/features/xoombar.html

******************************************************************
Reader Submissions

From: "FiReWaLL" <indigo@bc.sympatico.ca>
Subj: Text string search

Hi, I'm looking for a program to search for extended ASCII text  strings 
(the 256 character DOS set, INCLUDING THE NULL - thats  particularly 
what I'm looking for...) in files on a \/\/in95 box ...can anyone help?

Thanx!
=FiReWaLL=
e-mail: phyrewall@geocities.com

[Editor:  I know that the GNU tools from Cygnus includes a version of 
'strings' for Win32, but I haven't tried it on 9x.  Hey, how  about if 
you use Perl to write your own tool??]

From: "Death Wish" <death2000@webmail.co.za>
Subj: Windows / Registry

Hi there
TD / TeRrIbLe DiGiT here

i like to play around with the windows registry (Win95/98/NT)  A great 
site for registry info is the regedit.com site

http://www.regedit.com

For all you registry needs

P.S.:  Thank you for all you Pt with the HHD!!! I've only belong / 
Subscribe to you a few weeks ago, and I think  you guys are doing a 
great job!!

P.S.S:  English is my second lang, please don;t mind my spelling!!

Thanx
//--------------------------------------
Death Wish
death2000@webmail.co.za
Hack the Planet ! !

[Editor:  Thanks for the site...]

From: "N S" <pstar64@hotmail.com>
Subj: Microsoft Article

I enjoy the digest, keep up the good work.  I found this article  that 
people would be interested in.   
 

http://www.seattleweekly.com/features/9913/features-barcott.shtml

Just some info on Gate's attempt to create an heir.  I hope you  haven't 
already included this URL...

starNOMFIC

[Editor:  We've included it now...]

From: <yruno2@usa.net>
Subj: even more weird out urls

Hi again all you happy hackerz. Thought Id share something I  discovered 
a while back after i saw my first dotless ip url and  tried some 
experiments. you can also create dotted and dotless  ip's with hex 
numerals ;)  lets take the ficticious lan ip  192.168.1.222 .  convert 

each 8-bit address section into hex => 192 = C0 , 168 = A8, 1=01, 222 = 
DE.  Hex numerals are represented with an 0x in the front. so, if there 
is a web server  at http://192.168.1.222 , you can also access it via 
http://0xC0.0xA8.0x01.0xDE .  

Now this is the really cool part.  you can do a dotless hex ip as  well. 
try the same address above with only one leading 0x and no dots. 
http://0xC0A801DE

Whats cool about this is, theoretically you could get numerical 
addresses that spell out stuff using the hexadecimal letter-digits  A 
through F.  I have a famous one in mind im going to investigate ;)

This may not work in all browsers, but it did in ie4 and ns 4.5 for  me.  
Hmm, maybe octal will work too? binary?   

Remember where you saw it first ;) ;)

YRUno2, aka Boomhauer

[Editor:  Okay, okay, enough already!!  Sheesh...did that one posting 
hit a motherlode or what!!?!  I've gotten more email regarding the 
string-to-hex conversion of IP  addresses than I have spam this week!  
And here's a cool one, for all of the Howard Stern fans out there...open 
'calc' on your Windows box, and go to the Scientific view.  Enter  
3132796942, and convert to hex...]

From: "Roboko Neko" <artilect@hotmail.com>
Subj: reader Submission (Win98)

I've got two things to submit. First, Win98 stores startup and shutdown 
splash screens just  like w95, as logo.sys(for startup) logow.sys( 
shutting down,  and logos.sys (for  "ok to turn off") Simply save a bmp 
as one  of these names in the dir they came from, copying them first  
somewhere else for backup of course, and you're done.

THe only trouble I have had with this is on some installs, not  being  
able to find logo.sys, but I HAVE done it to other W98 boxes,  in fact 
the W98 logo.sys works with w95! Makes a good trick on  somebody!

Second,  for those with w98 and Personal WEb Server, if you want to  use 
the premade asp layouts, but dont like that IE4 logo ad a the  bottom, 
Get the gif you want, and save it to the   dir c:\iissamples\default\ 

as ie.gif, saaving the old somewhere else as backup of course.   The 
code in the layout.css, with the help of other files, create  the logo 
with ie.gif.  I chose netscape's animated gif for my page!   Also, if 
you want to add java, or just regular html, you can open  
c:\wwwroot\default.asp in notepad, and make all the additions you  want. 

Thanks,
Artilect

[Editor:  I can't test and verify the Win98 startup screen stuff...but 
please...NO MORE EMAIL ABOUT THE WIN98 STARTUP SCREEN!!!  If you have a 
method of changing, it fine...post it on a web page and send me the URL.  
For all of you who say they don't have or can't find the files mentioned 
above, I  have just one word for you..."attributes".]

From: "Katt ph®eak" <kattphreak@hotmail.com>
Subj: (none)

This is written in response to the following post:

>From:  "Max Andersen" <unibomber_98@hotmail.com>
>Hi. I have some questions for you all. If possible, could you
>publicise  it on the hacker's list, so everyone can read it
>and help me with my queries.

>I have Raising.exe, and Handsoff.exe (security programs)
>installed on our computers which are set up by a LAN, and
>I can not get into Windows as a result of losing my password
>and user name.  Also, I can not delete these programs, becuase
>the computers don't check for a floppy disk when it boots up,
>therefore, can not use a boot disk to do what I thought would work.
>Would you please help me with my queries?
>Thank you for your time and support.

Okay this idea may not work but you should give it a whirl... What you 
need to do is set the system to boot a floppy before it  boots the hard 
drive. To do this before entering the OS you have  to get into the 
system bios. On my desktop, I have to hit the F1  key when the Gateway 
2000 logo pops up as all the nifty little  numbers and techno-lingo fly 
by on the screen. On my laptop I have  to hit the delete key when the 
Compaq logo appears. If you don't  know how to get into the bios I would 

try all the F-Keys(F1, F2...),  delete, and all the other nifty buttons 
like that. Eventually, if  you're lucky, the bios will open. Here is 
where all the system  configurations are located. Things like timezone, 
and what boots  first. I'm assuming that those security programs have 
switched your  system to boot the hard drive before the floppy. There 
should  directions on how to navigate the bios at the bottom or top of  
the screen. Follow those directions until you find the boot options.  
Switch the bios to boot the floppy drive  before the hard drive.  Exit 
the bios, saving your changes as you do. Then shut down your  machine, 
pop in your floppy, cross your fingers, and reboot. I hope  this helps 
you out, so let me know how it goes.

Hope I helped,
-Kattph®eak-  kattphreak@hotmail.com
(yeah, yeah, I know, I know... weird handle, average guy)

[Editor:  Read the "Foolproof Challenge" section below...and instead of 
coming up with ways to get around security programs on win9x (which 
seems to be a fairly trivial exercise) why not come up with a way to 
prevent someone from doing so?  Oh, yeah, and don't forget your 
password!]

From: mloll@wam.umd.edu
Subj: tcl/tk

> I've had TCL code in here before...just remember that
> this is the Windows HHD...so try to make your code 
> specific to the Win32 platform...

You might wanna tell people about VisualTCL, a RAD GUI builder  for 
windows, Unix, and MacOS.  Let's you build UIs ala visual  basic style 
drag-n-drop objects.  Generates the tcl/tk code  for the GUI for you.

It is at:

http://www.neuron.com/stewart/vtcl/

[Editor:  Great, thanks.  One reason for going with languages like Perl 
and TCL over VB is that what you learn on Windows applies directly to 
Unix and Linux...]

From: kreep@iname.com
Subj: A neat batch file

Hi all you happy hackers!

I saw the last guide [or the one before, i dunno]  and saw that batch 
file that clears your documents list.  I thought it was quite smart and 
so decided to write on  that clears your RUN list [i know i always need 
it cleared,  and its just a principle]

Now first you need to export the registry file that keeps  the names.  
Open up the regedit GUI and export the key :
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
\Explorer\RunMRU]

to c:\windows\runlist.reg

OR

from dos [c:\] type regedit /e c:\windows\runlist.reg
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
\Explorer\RunMRU

now edit this reg entry and where it says "a"="explorer.exe"  [or 
whatever] change it to "a"="" for all the letters [b,c,d etc.]  and save 
it.

Now for the batch file:
------CUT HERE--------
@ECHO OFF
echo Clearing your run history...
cd\windows
regedit runlist.reg
cd\
------CUT HERE--------

Easy huh? now just save it as clearrun.bat [in c:\windows] and call it 
from autoexec.bat by adding the line c:\windows\clearrun.bat to the end 
of autoexec. I know its kinda a simple but i like the idea of how it 
imports a registry entry...

Thanx and keep on hacking!!
kart00n
[PS I'm from south africa! Shout Outz to worldwide hackers!]
kartoon@blader.com
icq #20212752 [ADD ME!]
Peace

[Editor:  I haven't tested this one...but it looks good.]

From: "Vladimir Jovanovic" <azak@ptt.yu>
Subj: URL submission

Hi there...

I have made this little program to help people defend  from trojans 
binded with SilkRope... It can detect binded  programs and separate 
them. (currently only 1.1 version is  supported)

url: http://members.tripod.com/~blacklime/razor.arj

Freeware. Enjoy

Zak McKracken... from BadGuyLand
If you like it click on the banner on 
http://members.tripod.com/~blacklime
:)))

[Editor:  I hope the .arj extension doesn't upset anyone. If it does, 
and you don't know what to do with it, email the author...]

From: "Death Wish" <death2000@webmail.co.za>

Hi there, i see that you have been getting lots og E-mail  about how to 
change the bootup screens for Win 9x, well I  have one for you can 

change the NT bootup screen.

Well, ltes get started, the old boring bootupscreen
for server  id the "lanma256.BMP" file that is located in the Winnt 
directory.  Well, to change it just open the "lanma256.BMP" file in 
paint and  change it to whatever you want it.

Ok, Lock off and log in again, see, there is your pic that you  wanted, 
but now you have to old boring blue type of screen. Well,  to chage that 
all that you have to do is open a new file in paint  and chage the 
setting of the page (Open paint, goto Image,  attributes ) and set it to 
whatever your screen size is (eg 800 x  600, etc), now open the image 
that you want to have on you bootup  screen with paint, goto "edit" and 
select the "select all" option. Right click on it and copy it. Goto the 
first paint program that you have open and select "edit", next click on 
"Paste". The pic will  be in the left hand corner, Move it to the center 
of the page.  Select the "fill with color" chose you color (eg. black) 
and fill  the background with it. and save it as "lanma256.BMP" in your  
Winnt directory. Log off and log on again, ahhh, the blue is gone  and 
it's black. Say you have a pic that is 800 x 600 and your  screen is set 
to 800 x 600 then you just save it as "lanma256.BMP"  in your winnt 
directory and it will be full screen. I'm not sure, but the Workstation 
has the same file, if it doesn't then just look for the *256.BMP file, 
it will be there

Regards

TD / TeRrIbLe DiGiT
//--------------------------------------\\

******************************************************************
More Netcat tricks

From: lazerus001@juno.com

Hi, I don't know if this will get printed, but its worth a shot. I have 
two more NetCat tricks. First is how to use it as an E-Mail  sender. 
First create a DOS batch file containing this:

<system>= your smtp daimon

[Editor:  Spell it however you like, but I think the author
meant "daemon".]

begin mail.bat
-----------------------
nc -v <system> 25 < mail.txt
-----------------------
end mail.bat

and mail.txt should contain smtp commands and your message. 

example mail.txt
----------
HELO smtp system
MAIL FROM:yourmail@domain
RCPT TO:resiever@domain
DATA
        Content-Type:text/plain
        X-Mailer:NetCat E-Mail Trick by Fatal Error
        Subject:NetCat

Mesage here.
.
QUIT
----------

My second trick is to use NetCat as a defence program with help  from my 
NCA program. (NetCat Attack, an ASCII flooder I wrote in  QuickBASIC.)  
By simply using the anti-portscanner/sniffer trick  along with NCA you 
have a simple BOOBY-TRAP! Using the following  batch file:

trap.bat
-------------
nc -v -L -d localhost  -p 12345 > intrudres.txt
nc -L -d localhost -p 12345 -t -e nca.exe
nc -v -L -d localhost  -p 31337 > intrudres.txt
nc -L -d localhost -p 31337 -t -e nca.exe
-------------

you've installed our boobytraps. Now when anyone portscans your computer 
they'll both get logged and find two "possible" backdoors  ;). Now if 
they were to telnet to those ports they will be logged  again and 
they'er telnet screen will be flooded with ascii chars.  Also you have 
enough to get them kicked off their isp :). I'm not  100% sure, but if 
they connect to either port with NetBus or BO  their clients should 
crash. I highly doubt they were coded to handle  a sudden flood of ASCII 
code. If you can test that let me know the  results. I bet they'll be 
interesting. 

[Editor:  Now, this is what I like to see.  I guess we'll all have to 
email lazerus for a copy of his NCA.exe...or write  our own.  I like how 
lazerus has brought together several  concepts...using netcat, defense 
of your system, etc.  Great job, lazerus!!]

******************************************************************
Foolproof Challenge

Recently I received a couple of emails regarding how to get  around or 
shut down the Foolproof program; most notably, those emails were from 
"Freefall" <frfalljd@swbell.net> and jerry kulinger <raz_e_r@yahoo.com>.  

Interesting approaches, to say the least, neither of which I could test 
out.  

However, here's a challenge for all of you who have been  frustrated by 
Foolproof, and found a way around it.  Come up with a way to make 
Foolproof...well...foolproof.  Make it as close to impossible, or at 
least exceedingly difficult, to get around or shut down FoolProof.  

Here's my reasoning for the challenge.  Obviously, if someone  takes the 
time and effort to purchase and install the product,  it's there for a 
reason.  So some really bright users feel restricted by it, and devise 
methods to get around it.
 But is that what 'hacking' is all about?  No...so let's take it a step 
further.  After all, you're not just 'crackers' are you?  Let's tell the 
sysadmin what you did and how you were able to do so, and then offer to 
set things up so that it won't happen again.

You'll probably need the user manuals that came with the program as well 
as a test system on the network to work with.  These shouldn't be a 
problem.   

The goals of this challenge are to secure the box in such a way that 
it's exceedingly difficult (ie, a "non-trivial exercise")  to circumvent 
Foolproof again, AND at the same time, leave the system in a usable 
state...users should still be able to access the system and use it for 
it's original intent.

There are no limitations to this challenge.  Given the above  stated 
goals, 'securing' the box in a block of concrete and  sinking it to the 
bottom of the ocean is definitely out!  The system must still be usable.  
Use whatever you like...another, additional product (something that will 
require market  research), System Policies from the login server (if one 
is  used), etc.

Now for the Open Source part of the challenge...you must post your 
method, documented in detail, on a web page, and send me the URL.  I 
will add the URLs to the HHD, and other readers  taking part in the 
challenge can verify that your system  works, or find a way to 
circumvent it.  Remember, gentle  readers, this is how Unix was 
developed over the years...open source and peer review...

So...want to take the challenge?

******************************************************************
Coming Out Of Your Shell

"Have you ever had a dream, Neo, that you were so sure was real,  that 
you were unable to wake from that dream, how would you be  able to tell 
the real world from the dream worl......"
 Oops. 
Good movie, see it anyway.
 
Hello Happy Hacker!
 
(You were right, my sysadmin had my netstat "turned off").
 
Ever want an open source shell, but the functioality  *coughGamescough* 
in Windows?  :)
 

http://www.litestep.net/builds/ls-0_24_4src.zip
 
There is your source....
 

http://www.litestep.net
 
And there is your new Windows Shell!  =)
 

http://members.xoom.com/tiberianson/mybox.htm  <-- My computer
 
And there is what it looks like!  =)
 
LiteStep is based on XWindows, and is perfect for those of us who  like 
the way Windows runs our applications, but hate the jludge  interface or 
just feel like getting in there and beating out some  code once and 
awhile.  It's also a helluva lot easier to set up  than X, and never 
traps youin 4 colour "pseudocolour" mode  (*CoughHelpMeCough*).  And 
doesn't require SuperProbe(which also  hard locks my linux box).  I 
generally like it, it's fairly stable  (fairly, when you crash with this 
thing, you crash hard, but it's  more stable than windows seems to be, 
IMOHO), and turns heads at  school on my laptop.  ;)  
 
Everything is programmable from a STEP.RC file (XF86Config, anyone?),  
including the look and icons inside the wharf there on the side.   For 
those who are courious, yes, it supports transparancy effects  al la 
eterm (or Enlightenment, for those who wonder.....), and also  supports 
Linux themes (though they seem to be a bit unstable in my  experiance, 
and require some re-writing before they want to work).
 
If your REALLY into customizing this stuff, grab a copy of  
WindowsBlinds or eFX, and get the nifty rollup bars like I have.   (The 

rollup bars in the screenshot are NOT a result of LiteStep,  they are a 
result of WindowsBlinds).
 
I like www.annoyances.org/win98/ but they missed one little thing.   How 
to change your computer from saying, "Starting Windows 98" to  "Starting 
TiberianSons 31337 Box " (or whatever, mine never actually  displays 
this).   What you do here is make a boot disk (because if you do this on 
your hard drive or assume that my words are infallable  your going to 
regret this really quick), make the boot disk bootable  (it is a boot 
disk, after all).  Set IO.SYS off of READ ONLY (you can  leave it 
hidden), then use DOS EDIT on IO.SYS.  About 25% down (line  394), it 
will give you the generic windows 9* blah blah blah.  Looks  like this:
 
<<snip>>
$ Starting Windows 98...
 
$ Windows 98 is now starting your MS-DOS-based program.
 
$ Windows 98 is now restarting...
 
$ Press Esc not to cancel MS-DOS mode and restart Windows 98...
<<snip>>
 
Bingo.  That's what we want to see.  Now you can change all that  stuff 
and make it look fairly cool.  DO NOT use control codes  ("'leet 
script").  If you wanna play with punctuation, do so on your boot disk.  
In fact, do the whole project on your boot disk  until the boot disk 
boots!  Then copy the boot disks IO.SYS over  your own IO.SYS.  Most of 
the time IO.SYS is located in C:\ (I sure hope it is! <grin>).
 
Anyhow, I've been doing this for months, I never knew anyone had any  
interest in making Windows look cool or recompiling their windows 
shells.  :)  Oh well, any questions ya can just e-mail me.  :)
 
Thank you RavenBlack for showing www.annoyances.org to us.  :)  The  
last thing you want to tweak out is your startup-shutdown screens, so  
that can be done here: 
http://www.annoyances.org/cgi-bin/ce-showtopic/004_011

(notice the annoyances.org).
 
Anyhow, I hope ya all enjoy this, and remember that replacing your  
windows shell and editing IO.SYS carries heavy "You Can Shoot Your Self  
In The Foot" warnings.  The windows shell might make some things crash  
unexpectedly (or, my main complain, FIND seems to not work at all in 
Win98 with LiteStep, and neither does AOLIM'er, accoring to my younger  
brother).  It's also a bit of work to get those icons into the wharf.   
As for IO.SYS, PLEASE remember to practice this on a boot disk,  OK?  :)
 
Laters,
TiberianSon
2611542
Tiberian@ICDC.COM

*APPENDATION*
*APPENDATION*
*APPENDATION*
*APPENDATION*

REMEMBER TO SET IO.SYS BACK TO READ ONLY AND HIDDEN WHEN YOU ARE  DONE 
EDITING OR IT WILL NOT WORK.

Also, I use attrib for this, if it works with Win9* attribute  changer 
in the properties popup, yipee, but I know it works with  tried and true 
attrib.

<<End>>

Thanx man,
TiberianSon

******************************************************************
Perl Corner

From: grind@pacbell.net

Well just thought I'd contribute and send in a fairly simple perl 
script, after months of getting free scripts, I decided to write  my own 
and this was my first one. Took me a while to figuring out  how to parse 
it right, so anywho, here it is:
-----------------------------------------------------------------

#!/usr/bin/perl
print "Content-type: text/html\n\n";
print "Hey man! Just logging your ip  address,
$ENV{'REMOTE_ADDR'}
connecting on port $ENV{'SERVER_PORT'}, this info will
come in handy
*evil grin*<br>";
print "Oh I see your using $ENV{'HTTP_USER_AGENT'} for
net surfing, 
not bad<br>";
$s = $ENV{'HTTP_USER_AGENT'};
($m) = ($s =~ /W(.*)n/);
if ($m eq 'i'){
   print "You should use Unix instead of windows, don't you know 
anything? *L*";
}
$h = $ENV{'REMOTE_ADDR'};
($i) = ($h =~ /127(.*)1/);
if ($i eq '.0.0.'){
   print "<br>Hey Jeff!";
}
------------------------------------------------------------------

(Note that when I say prints out,  I mean it'll put the words on  the 
screen *L*, didn't want to confuse anyone) So here is how it  works, it 
calls perl from /usr/bin/perl to run the script (which  of course is 

needed), than says it will use html to print out the  info.  Next it 
prints the nifty little text "Hey man! Just logging  your ip address, 
$ENV{'REMOTE_ADDR'} connecting on port  
$ENV{'SERVER_PORT'}, this info will come in handy *evil grin*<br>"  this 
prints out your ip address (where it says $ENV{'REMOTE_ADDR'},  it'll 
put your ip address ) and the port on the server you used  to connect on 
(where it says $ENV{'SERVER_PORT'}, it'll put the  port number), and of 
course, it really doesn't log your ip. BTW, $ENV stands for enviroment 
variable, you can do some pretty  cool stuff with this guy, at the end, 
I'll give you all a url  which lists all of them Now the next part is a 
little bit more complicated, but its easy  to get.  So lets look at the 
next couple of lines:
-----
print "Oh I see your using $ENV{'HTTP_USER_AGENT'} for
net surfing, 
not bad<br>";
$s = $ENV{'HTTP_USER_AGENT'};
($m) = ($s =~ /W(.*)n/);
if ($m eq 'i'){
   print "You should use Unix instead of windows, don't you know
anything? *L*";
-----
This prints out "Oh I see your using $ENV{'HTTP_USER_AGENT'} for  net 
surfing, not bad <br>" pretty simple, and the  $ENV{'HTTP_USER_AGENT'} 
prints out your browser and system. The  next line is what took me a bit 
to get, it's saying:
The variable, $s, equals $ENV{'HTTP_USER_AGENT'}
The variable, $m, looks at the variable $s to see if the operating 
system has a "W" at the beginning and a "n" at the end now if $m equals 
i (the letter in between) it will print out "You should use Unix instead 
of windows, don't you know anything? *L*"
-----
$h = $ENV{'REMOTE_ADDR'};
($i) = ($h =~ /127(.*)1/);
if ($i eq '.0.0.'){
   print "<br>Hey Jeff!";
----
Now the next part works the same way, so here is how it works: When I 
access localhost (my webpage) and go to main.html (where  the script is 
implemented) it sees if my ip address equals 127  at the beginning  and 
1 at the end now it sees that if my ip  address has a .0.0. in the 
middle, print out "<br>Hey Jeff!"  (which is my name)

Well thetas my contribution to the list, if you want to learn  perl go 
to, http://www.cgi-resources.com and download some  scripts and split 
them apart (as I've done here) and see to  understand them. Its a simple 
concept, just hard to know how to  put the "verbs" in there.  To learn 
the environment variables, go  to, http://www.cgi-
resources.com/Documentation/Environment_Variables/, and if you have some 
spare time, go to my site, http://degrind.dhs.org (has a link to the 
happyhacker *L*)

Jeff

[Editor:  Thanks, Jeff, for the CGI submission.  You can write CGI in 
Perl, or Python, VB, etc.  To learn more about writing CGI, check out 
the site Jeff mentioned at http://www.cgi- resources.com. ] 

Note:  If you are interested in more info about CGI programming, look at 
the CGI.pm file in your ActivePerl install.  Books are available online 
from http://www.mcp.com (create your own personal bookshelf) and 
http://www.ora.com.  If you have access to an NT web server, and would 
rather use ASP, there is a Win32::ASP module available (I haven't played 
with it yet...)...

Okay, now here's some Perl stuff you all might be interested in...

From: "dave andrews" <dave31_5@hotmail.com>
Subj: Perl

Here is a little script that the administrators reading may  like. It 
allows you to use perl in an interactive format. Just  type in the perl 
command, press enter and it will be done.  Then when you have finished 
type exit to end the program.

do {
    print("> ");
    chop($_ = <>);
    eval($_);
    warn() if $@;
} while ($_ ne "exit");

Why would you want to do this? Say for example you have lots of batch 
files which you use to  perform lots of different tasks, with a little 
extra work to this  script you can create your own perl command line 
interface, which  could include all of the tasks you normally handle but 
in perl form.  Then just add them to this template program with a 
command name and  you can then just type in that name and it will be 

done for you.  Just keep adding tasks in separate subs and you can 
gradually  create your own administrative command line interface for 
perl.

This example interface includes one task that dose some backing up  when 
the do#backup command is entered. All custom commands should  have do# 
as the first part of the command, this separates these  commands from 
proper perl commands.

sub backItUp {
    `backup /user/*`;
    `delete /user/*.bak`
}

sub help {
    print("do#backup will perform the nightly
backup\n");
    print("help will display this message.\n\n");
}

do {
    print("> ");
    chop($_ = <>);
    if (/^do#/) {
        backItUp() if /backup/;
    }
    elsif (/^\s*help/) {
        help();
    }
    else {
        eval($_);
        warn() if $@;
    }
} while ($_ ne "exit");
 

Just enter help to see instructions on use and exit to leave  the 
program.  Of course any users would need to insert commands  that they 
would want executed, the one included is just an example.

Hope this is useful to someone.

Keep up the good work
Dave Andrews (FatherTed)

******************************************************************
Editor's Comments:  

Couple of notes:

- I am not Carolyn, nor am I the editor of the Unix digest.  I am not 
even in the same state as Carolyn.

- I will not tell you how to hack into a box.

- It's really easy for me to answer qu

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