[olug] IPTables, Blacklist add multiple and range

[Jay Hannah]

Phil Brammer wrote:
> You can always use netmasking...  
> 
> In my iptables script, I use:
> -A FORWARD -s 69.50.160.0/19 -j LDROP
> 
> That example will block 69.50.160.1 to 69.50.191.254, or 8,190 IP addresses.  You can use a calculator at http://www.subnetmask.info/ or any other IP calculator sites on the 'net.

Ya. I'm partial to my little tool:

http://jays.net/cgi-bin/ipr.pl

HTH,

j
Omaha Perl Mongers: http://omaha.pm.org
great for writing little scripts to dump IPs into/out of text files :)