Blocking IP Addresses in IIS

Blocking IP's in IIS with IISIP

Updated 11/30/2008 release history

IISIP is a simple app that makes it easy to block spammy IPs in IIS.

Can block multiple IPs at once unlike the IIS Admin interface
Automatically reads in "feeds" of known IPs (for example Chinese IPs or black listed IPs)
Easy to add your own feeds via a local txt file or URL to text file
Works on Windows Server 2003 and Vista, both 32-bit and 64-bit
It's free and source code is available (.NET C# all managed code)

Download IISIP (ready to run, less than 100k, requires .NET 2.0)

Download IISIP Source Code (compatible with VS2008 SP1)

Feeedback welcome, please leave a comment on my blog if you like.

Contributors:
	Lee Whitney
	George Atkins
	www.okean.com

Conditions:

If you link to IISIP please link to this page not directly to the file.
No guarantees offered, I'm just sharing :). If you have any doubts about free software I wrote in my spare time backup your metabase before using.

Release history
--------------------------------------------------------------------------------------------------
1.0	Integrated very helpful work from George Atkins:
	Insert addresses under a websites root node in the metabase instead of the top level node, which caused issues when manually adding or deleting blocked ip records through the IIS Admin Interface.
	Correctly block actual IP ranges using subnets, instead of just a single ip address. Previously a range such as 221.0.0.0-221.12.191.255 would only insert up to 191 for the third oct for each 221.0 to 221.12

	Improved instructions on Creating IP Feeds in the ReadMe.txt

0.90	Web site list is now sorted

0.88	Enhanced IPFeed parsing to handle ranges of IPs, many were being missed
	Added Link to IP Geographic Locator
	Added more detail to status bar while work is being done
	Better error checking for IPFeeds
	Minor UI tweaks

0.86	Main form IP list is now properly sorted
	Improved event log item info and color coded for event type
	Minor UI tweaks

0.84	More robust checking for duplicates and properly formed data
	Keep latest copy of downloaded feed data in txt file for easy inspection
	Allow for comments by skipping IPFeed data lines starting with #
	Misc small fixes

0.82	Added event log IP scanner

0.80	First release