Re: Re: a question...

I just want to point out that public IPs are no longer given out as Class A, B, and C networks, but based on CIDR. You can use rwhois to figure out who has use of a certain subnet and what the range of it is. Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com Daniel Brown wrote: > On Wed, Jul 23, 2008 at 12:10 PM, <payne@magi.magidesign.com> wrote: > >> Yes, sorry. I have a database that records ip of attacks on a customer >> server, what I like to do get a count so that I can see what subnet is >> doing the major of the attacks. >> >> select ip from ipslimit 10; >> +-----------------+-----------+ >> | ip | count(ip) | >> +-----------------+-----------+ >> | 83.117.196.206 | 1 | >> | 85.17.109.28 | 1 | >> | 125.138.96.19 | 1 | >> | 89.110.148.253 | 1 | >> | 192.168.105.10 | 1 | >> | 200.170.124.72 | 1 | >> | 201.116.98.214 | 1 | >> | 202.168.255.226 | 1 | >> | 203.89.243.158 | 1 | >> | 210.245.207.217 | 1 | >> +-----------------+-----------+ >> 10 rows in set (0.00 sec) >> > > Okay, this would have to be done in code, and isn't a MySQL issue. > Presuming you're using PHP, I'm going to also copy this message to > the PHP General mailing list, Payne, so that others can benefit from > it in the archives as well. If you're not already subscribed and > would like to follow along with the thread, please send a blank > message to php-general-subscribe@lists.php.net. > > To get the Class C on that, here's a simple function you can use: > > <?php > function get_subnet($ip) { > return substr($ip,0,strrpos($ip,'.')); > } > ?> > > As a quick illustration of how it works, here's an example script > (to use MySQL, just replace the $ips array with your <?php $row = > mysql_fetch_array($result); ?> or similar line): > > <?php > $ips = > array('192.168.0.0','10.0.0.1','127.0.0.1','216.37.159.240','99.99.99.99','127.0.0.2','192.168.1.1','10.0.0.0','192.168.0.1','192.168.0.150'); > > function get_subnet($ip) { > return substr($ip,0,strrpos($ip,'.')); > } > > foreach($ips as $ip) { > echo $ip."'s Class C is ".get_subnet($ip)."\n"; > } > ?> > > >