Line 1: <?php
Line 2: if ($_SERVER['REQUEST_URI'] == $_SERVER['PHP_SELF'])
Line 3: exit();

The squid access.log file is useful for determing where your users are going when using http/80. These log files are generally rotated daily and each contain a LOT of data. In my organization, this is in the realm of 2 GB per day. So how do you find what you are looking for? I use [...]

I added a captcha plugin for my blog and it has pretty much eliminated the random spamming. However, take a look at this and tell me what purpose this serves:

Now it’s a DOS. Great. It’s almost as bad as this one.
Why does it have to be text? Why can’t a captcha be made using random [...]

A script used to backup a site or other FTP contents to a folder and then archive it. Deletes files that are more than 60 days old.

#!/usr/bin/perl
#
# Download all contents via FTP using ncftpget
# Version 0.1 RDG 20080421
 
my $configdir = "/usr/local/scripts/ftpscript";
 
my $year = (localtime)[5] + 1900;
my $month = (localtime)[4] + 1;
my $day = (localtime)[3];
if ($month [...]

Here is a simple function for filtering out bad characters from user input. In most of my uses, I don’t care if the data is actually present so I simply remove it. You could just as easily replace these bad characters with their encoded equivalents if you really wanted to allow them (such as HTML).

function [...]