What is the ip range of EC2

Posted by Nicolas Kassis on Server Fault See other posts from Server Fault or by Nicolas Kassis
Published on 2010-04-18T08:11:33Z Indexed on 2014/05/29 9:31 UTC
Read the original article Hit count: 298

Filed under:

firewall

|

iptables

|

amazon-ec2

|

hacking

I'd like to setup a rule to block ssh request from EC2 since I've been seeing a large amount of ssh based attack from there and was wondering if anyone knew what their IP ranges are.

EDIT: Thank you for the answer, I went ahead and implemented the iptables rules as follow. I ignore all traffic for the moment. Logging it just to see if the rules are working and for stats on how much crap EC2 is sending out ;)

#EC2 Blacklist
$IPTBLS -A INPUT -s 67.202.0.0/18 -j LOG --log-prefix "<firewall> EC2 traffic "
$IPTBLS -A INPUT -s 67.202.0.0/18 -j DROP 
$IPTBLS -A INPUT -s 72.44.32.0/19 -j LOG --log-prefix "<firewall> EC2 traffic "
$IPTBLS -A INPUT -s 72.44.32.0/19 -j DROP 
$IPTBLS -A INPUT -s 75.101.128.0/17 -j LOG --log-prefix "<firewall> EC2 traffic 
"
$IPTBLS -A INPUT -s 75.101.128.0/17 -j DROP 
$IPTBLS -A INPUT -s 174.129.0.0/16 -j LOG --log-prefix "<firewall> EC2 traffic "
$IPTBLS -A INPUT -s 174.129.0.0/16 -j DROP 
$IPTBLS -A INPUT -s 204.236.192.0/18 -j LOG --log-prefix "<firewall> EC2 traffic
 "
$IPTBLS -A INPUT -s 204.236.192.0/18 -j DROP 
$IPTBLS -A INPUT -s 204.236.224.0/19 -j LOG --log-prefix "<firewall> EC2 traffic
 "
$IPTBLS -A INPUT -s 204.236.224.0/19  -j DROP 
$IPTBLS -A INPUT -s 79.125.0.0/17  -j LOG --log-prefix "<firewall> EC2 traffic "
$IPTBLS -A INPUT -s 79.125.0.0/17  -j DROP

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