A lot of comment spam has been coming from IP addresses in the following netblocks:
173.234.0.0/16
173.208.0.0/16
69.116.0.0/16
Fortunately, I know how to use IPtables
# iptables -A INPUT -s 173.234.0.0/16 -p tcp -m tcp -j DROP
# iptables -A INPUT -s 173.208.0.0/16 -p tcp -m tcp -j DROP
# iptables -A INPUT -s 69.116.0.0/16 -p tcp -m tcp -j DROP
Blocking a /16 is a bit of a Nuclear Option, but I’m sick of it. No doubt this is going to block a few legitimate users too ….. my recommendation is to switch ISPs, because you are doing yourself no favours associating with an ISP who are friendly to spammers.
(If I get any comment spam in response to this post, I will approve it — after blocking their IP addresses — but with links disabled.)
Thanks for this it came in useful recently
You can add 109.169.56.34 to the list now.
This is really interesting. Thanks for posting it. By the looks of the comments, many others think so too.