February 2006
Intermediate to advanced
304 pages
6h 16m
English
Content preview from Wicked Cool Perl Scripts
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
#8 Hacker Detection
There are a lot of dumb hackers and worms out there. Many of them try to break into my web server using old exploits that work on Microsoft systems. Many of these exploits are used to try to access the program cmd.exe in the WINNT directory.
I run Linux, so I can tell you that no matter what you send to my box, you're not going to get access to an MS-DOS command prompt.
To identify the bad guys, I created a small script that scans the Apache error log looking for obvious hacking attempts and printing out the top hackers.
The Code
1 #!/usr/bin/perl 2 # 3 # Print out a list of who tried to hack 4 # the system. 5 # 6 # Uses a simple technique to detect hacking 7 # entries, specifically 8 # 9 # 1) Attempts to access any URL ...
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