Not my field but it is effecting SEO so why the question. Not all the time but lets say once a week our main database server is hammered from repeated (auto generated) attempts to get in by user name and password. The attack is such is stalls the server so bad it brings the sites to a crawl. Right now all IT is doing is getting the IP's and blocking them.
Is there another way to limit the number of attempts and after a certian number block them for some time period?
I can tell you when it happens from whith Google WM area and can't seem to get IT to find a solution to this problem.