Blocking comment spammers by IP

Fri, 13 Aug 2010 11:59:27 +0000

I use Akismet to block comment spam, but it still annoys me that it even exists. Last night I put a simple IP ban into my httpd config. But who to block?

I used a grep & Perl to get a rough guess of which IPs were submitting the most comments (working on the assumption that one IP address submits many spam comments) It took me about 20 minutes to write this mess but it does what I wanted to do: [root@lunix ~]# zgrep POST /var/log/httpd/evanhoffman-access_log-201008??.gz | grep comment | perl -ne 'chomp; $_ =~ m/(?:\d{1,3}\.){3}\d{1,3}/; print "$&\n";' | perl -e '%a = (); while (<>) { chomp; $a{$_} += 1; } while (my ($key, $value) = each (%a)) { if ($value > 1) { print "$value\t=>\t$key\n";}}' 2 => 218.6.9.140 180 => 91.201.66.34 2 => 213.5.67.41 2 => 188.187.102.74 [root@lunix ~]#

Deny on Evan Hoffman

Blocking comment spammers by IP