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Possible Duplicate:
Attempt to access SQL Server with the user SA

I'm suffering an attempted invasion by brute force. A bot is trying to figure out the sa password. How do I restrict logins 3 attempts in SQL Server?

Moreover, I would like to block an IP, how can I do this?

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migrated from May 18 '11 at 16:06

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marked as duplicate by Chopper3 May 18 '11 at 16:10

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Is your SQL server exposed directly to the net? – Jason May 18 '11 at 15:13
Use a firewall to block an IP. – Carl R May 18 '11 at 15:14
You should whitelist acceptable IPs and block the rest, instead of blacklisting bad ones and allowing all others. – RexM May 18 '11 at 15:20
just use the windows firewall. How can I block an ip using it? – Ridermansb May 18 '11 at 15:21
You should post this on – Philip Kelley May 18 '11 at 15:24

You can use a login trigger to restrict access from given ip addresses. I will dig out the code for you.

Technet video on how to do it here:

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See this link - []http://… – Duncan Howe May 18 '11 at 15:21

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