Blocking IP Addresses – Windows Server 2003


The best defense is a strong CHAINSAW SWORD!!!

First off…I wouldn’t recommend having a sql server that is accessible from the outside world.

In my case though I have a development server that I run from a partners network. Somewhere down the line some one or “some many” have run a scan and found this out. So my logs are filling up with password attempts.

Start -> Run -> MMC

Add the RRAS snap.

Go to IP Routing -> General -> Properties of your network adapter

Create new inbound filters with the offending IP Address using as the mask, make sure the default option “Receive all Packets EXCEPT…”


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