It might also be useful to know who is using the machine: 
#! perl -w
# fn_with_me.pl
# A quick and dirty way to tell if someone is messing with My Computer
+s
use Net::SMTP;
use Sys::Hostname;
use Win32;

$host = hostname;
$user = Win32::LoginName();

$smtp = Net::SMTP -> new('your.mailhost.net'); #Connect to a mail serv
+er
$smtp -> mail( 'anysender@theirmailhost.net'); #Sender's name
$smtp -> to('myemail@mymailhost.net'); #Receivers name
$smtp -> data();

# Send the header
$smtp -> datasend("To:  myemail\@mymailhost.net\n");
$smtp -> datasend("From:  theiremail\@mymailhost.net\n");
$smtp -> datasend("\n");

# Send the Body
$smtp -> datasend("$user is using $host");
$smtp -> dataend();
$smtp -> quit;

[download]

In reply to RE: Watching my Users by httptech
in thread Watching my Users by Poetic Justice

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.