Reverse DNS, SPF, Grey listing, and RBL Guides
Aug 31, 2008 by Paul White
If you run a mail server having a complete understanding of these technologies and how they work very important. I go over the details of each why they are used.
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SQL injection IP blacklist from the botnet
Aug 26, 2008 by Paul White
The BotNet seems to be growing faster than ever. I have included a list of all the IPs, I have caught attempting SQL injection via querystring. If you have your own blacklist, feel free to add these to your list.
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protecting against SQL injection attacks using querystring
Aug 15, 2008 by Paul White
If you run a website that is based on SQL, or MySQL. This is a must read. Some of my websites recently have been under attack by bots that are trying a new method of SQL injection attack.
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HTTP black lists stop comment spammers
Jun 04, 2008 by Paul White
I got sick of seeing failed viewstate in my event logs. so I wrote some code that checks visitors against a HTTP blacklist. I found that one of my blacklists was full of false positives. Not that the given IP wasn't abusive at one point in time but I found it was full of proxies of which are frequently used by legitimate users. After comparing some user logs I found that I was blocking a few of my member. The HTTP blacklist from Project Honey Pot works, but had the problem with proxies as I stated above. However one that I have had much better luck with is the one by stopforumspam.com.
If you are looking to stop comment spammers from seeing your site, I highly recommend them. Read on for a code snippet that shows how I implimented this block
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How to make your CSS look the same in IE and firefox
May 27, 2008 by Paul White
I was fighting some design issues on my client's new site. But I found some CSS code that did the trick. I guess the trick is to reset all your tags inside your CSS before starting to implement your own custom attributes. If you have been struggling with getting your CSS to look the same on both your firefox and IE 7 pages. This code snippet will do the trick.
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