How to block the IP in particular folder

[Hariharan]

Hi all,
I ve task like block the refused connection IP's from /var/log/secure file


`cat /var/log/secure | grep "refused connect" | awk '{print $9}' |sed 's/::ffff://g' |grep 190.184.35.27 >/root/sample`
IP="/root/sample/"
`iptables -A INPUT -s $IP -j DROP`

When i run this script, i get an error like this
[root@localhost ~]# sh ipblock.sh
iptables v1.3.8: invalid mask `' specified
Try `iptables -h' or 'iptables --help' for more information.
[root@localhost ~]#

As soon as give me some idea.........

Thanks,
Hariharan V.

[redhead]

I have no idear what your file looks like, but you can't make a file input to your iptables command, you need to issue the DROP on each IP, if theres one IP per line in that file, something like this might work:

for IP in `cat /root/sample`; do
   iptables -A INPUT -s $IP -j DROP
done

[Hariharan]

Hi,
Thanks a loooot
The script is ran without an error,can u tell me how to check if that mentioned IP is blocked or not.

[redhead]

# iptables -L INPUT -v

See if it is listed as a rule.

[Hariharan]

Thank uuuuuuuuuuuu...........

[Hariharan]

Hi,
Can u help me,i want to learn shell script from basic.
could u tell me the best site for learn.

[Hariharan]

Hi,
Using shell script i need to create a report with the following content.

Create a report based on the Blocked IP list. Report should contain the following :
--- Date, Blocked IP, country of origin, no of attempts, status