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Hi Philippe,<BR>
<BR>
There is a very useful software package DenyHosts at<BR>
<BR>
<A HREF="http://denyhosts.sourceforge.net/">http://denyhosts.sourceforge.net/</A><BR>
<BR>
See also the reviews listed there.<BR>
<BR>
We have been using this system for about a year (still with version 2.2 - with possible minor bugs that take a bit longer to shut out a hacking IP than specified). The system has been very reliable, as verified by our own automated tracker for login attempts.<BR>
<BR>
A newer version 2.5 is available.<BR>
<BR>
With best wishes,<BR>
Dr. Wolfram Jarisch<BR>
Cyber Technology, Inc.<BR>
---------------------------------------------------------------------------------------<BR>
On Thu, 2006-12-07 at 11:29 -0500, Philippe B. Laval wrote:<BR>
<BLOCKQUOTE TYPE=CITE>
<FONT COLOR="#000000">Running Linux Es 3.0. Is there a way to configure logins so they are rejected after a certain number of failures? I can see from my logs that somebody has been trying to get into my system. They consistently (like every few seconds) try to log in as a certain user. After a while, they give up and try another user. What is the best way to handle this. I would like to be able to set up each account so they are blocked after a certain number of failures. I also would like to be able to block certain IP addresses after a certain number of failed logins, even if they were for different user names. </FONT><BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<FONT COLOR="#000000">Thanks</FONT><BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<FONT COLOR="#000000">P. Laval</FONT><BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<B><FONT SIZE="5"><FONT COLOR="#0000ff">Dr. Philippe B. Laval</FONT></FONT></B><BR>
<BR>
<FONT COLOR="#000000">Associate Professor of Mathematics</FONT><BR>
<BR>
<FONT COLOR="#000000">Kennesaw State University</FONT><BR>
<BR>
<FONT COLOR="#000000">1000 Chastain Road</FONT><BR>
<BR>
<FONT COLOR="#000000">Kennesaw, GA 30144</FONT><BR>
<BR>
<FONT COLOR="#000000">USA</FONT><BR>
<BR>
<FONT COLOR="#000000"> </FONT><BR>
<BR>
<B><FONT COLOR="#000000">office</FONT></B><FONT COLOR="#000000">: SC 526</FONT><BR>
<BR>
<B><FONT COLOR="#000000">Phone</FONT></B><FONT COLOR="#000000">: 770-499-3325</FONT><BR>
<BR>
<B><FONT COLOR="#000000">fax</FONT></B><FONT COLOR="#000000">: 404-364-0552</FONT><BR>
<BR>
<B><FONT COLOR="#000000">e-mail</FONT></B><FONT COLOR="#000000">: <A HREF="mailto:plaval@kennesaw.edu">plaval@kennesaw.edu</A></FONT><BR>
<BR>
<FONT COLOR="#000000">web: <A HREF="http://science.kennesaw.edu/~plaval">http://science.kennesaw.edu/~plaval</A></FONT><BR>
<BR>
<BR>
<PRE>
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