Re: Server blocks access of IP after nmap scan

[Ken Fox <kenfox () sas upenn edu>]

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Amon - he might be running fail2ban: http://www.fail2ban.org/

- -- Ken

On 05/18/2011 12:37 PM, amon.amarth9 () gmail com wrote:
> I am conducting this little security test on a specific web server owned by a colleague of mine, saying it's pretty 
> secured. So first I ran nmap but after the nmap scan completes (and it says all ports filtered, which is impossible), 
> the web server became unresponsive. I called my friend in order to explain him how accidentally I DoSed his server 
> but he says it's all ok. I check again - it's not responding. So I connect through a proxy and whoa - it's alive, so 
> i guess after the nmap scan the server somehow protected itself by blocking access to the site for my ip. I would 
> like to know what I can do in this case, how I can successfully complete a nmap scan without putting it 'down'. Any 
> ideas please?
>
> ------------------------------------------------------------------------
> Securing Apache Web Server with thawte Digital Certificate
> In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, 
> how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, 
> purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for 
> set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital 
> certificates.
>
> http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
> ------------------------------------------------------------------------


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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------