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Code Issues Releases Wiki Activity

added dshield

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ChiefGyk 2016-06-29 18:36:55 -04:00
parent 66a542d666
commit 86a504713e
2 changed files with 2 additions and 67 deletions
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2
README.md
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@ -9,6 +9,8 @@ Tested on Ubuntu 14.04LTS for my own servers, so please test on your own systems
I have also added the capability to block all Chinese and/or Korean IP Addresses as a good number of spam and malicious activity are linked to them. Towards the end after ipset has added thousands of IP addresses, a dialog will appear giving the option to choose if you want to block China, Korea, both, or neither. Simply select the option you desire and it will take care of the rest. The Korean and/or Chinese addresses will only update weekly, as it blocks entire IP blocks off assigned to the country/countries you have chosen. I may add more countries down the line if need be.
The latest addition in 2.2 is it looks up Dshields top 20 blocks of IP addresses that are malicious, and blocks them daily. It has been merged into the /etc/cron.daily/blacklist created prior. The Dshield script was originally found at https://github.com/koconder/dshield_automatic_iptables
Simply run this once, and that's it.
sudo ./install.sh
alon@ganon.me

67
conf/dshield
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@ -1,67 +0,0 @@
#!/bin/bash
# Written by Onder Vincent Koc
# @url: https://github.com/koconder/dshield_automatic_iptables
# @credits: http://wiki.brokenpoet.org/wiki/Get_DShield_Blocklist
#
# Dshield Automatic Import to iptables
# Import Dshield Blocklist in a basic shell script which will run silently via cron
# and also use a seprate chain file to support other iptables rules without flushing
# i.e. fail2ban and ddosdeflate
# path to iptables
IPTABLES="/sbin/iptables";
# list of known spammers
URL="http://feeds.dshield.org/block.txt";
# save local copy here
FILE="/tmp/dshield_block.text";
# iptables custom chain
CHAIN="dshield";
# check to see if the chain already exists
$IPTABLES -L $CHAIN -n
# check to see if the chain already exists
if [ $? -eq 0 ]; then
# flush the old rules
$IPTABLES -F $CHAIN
echo "Flushed old rules. Applying updated dsheild list...."
else
# create a new chain set
$IPTABLES -N $CHAIN
# tie chain to input rules so it runs
$IPTABLES -A INPUT -j $CHAIN
# don't allow this traffic through
$IPTABLES -A FORWARD -j $CHAIN
echo "Chain not detected. Creating new chain and adding dsheild list...."
fi;
# get a copy of the spam list
wget -qc $URL -O $FILE
blocklist=$( cat $FILE | awk '/^[0-9]/' | awk '{print $1"/"$3}'| sort -n)
for IP in $blocklist
do
# add the ip address log rule to the chain
$IPTABLES -A $CHAIN -p 0 -s $IP -j LOG --log-prefix "[dsheild BLOCK]" -m limit --limit 3/min --limit-burst 10
# add the ip address to the chain
$IPTABLES -A $CHAIN -p 0 -s $IP -j DROP
echo $IP
done
echo "Done!"
# remove the spam list
unlink $FILE