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trying to get the blacklist and dshield merged

This commit is contained in:
ChiefGyk 2016-06-29 18:13:18 -04:00
parent 4286eff0bd
commit fe8acc8e44
3 changed files with 70 additions and 54 deletions

67
conf/dshield Normal file
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@ -0,0 +1,67 @@
#!/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

54
dshield
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@ -1,54 +0,0 @@
#!/bin/bash
##
## Add the top 20 IP blocks that have been reported by DShield
##
## /etc/cron.daily/dshield
##
## Author: Alon "ChiefGyk" Ganon
## https://alonganon.info
## alon@ganon.me
datadir=/tmp
## Get default settings of fail2ban (optional?)
[ -r /etc/default/fail2ban ] && . /etc/default/fail2ban
umask 000
blacklistf=$datadir/dshield.txt
mv -vf $blacklistf $blacklistf.last
badlisturls="http://feeds.dshield.org/block.txt"
# Create the chain if it doesn't exist. Harmless if it does.
iptables -vN dshield
# Grab list(s) at http://feeds.dshield.org/block.txt . Block.
echo "Adding new blocks:"
curl -s http://feeds.dshield.org/block.txt \
|sort -u \
|tee $blacklistf \
|grep -v '^#\|:' \
|while read IP; do iptables -A dshield -p tcp -s $IP -j DROP; done
# Which listings had been removed since last time? Unblock.
echo "Removing old blocks:"
if [[ -r $blacklistf.diff ]]; then
# comm is brittle, cannot use sort -rn
time comm -23 $blacklistf.last $blacklistf \
|tee $blacklistf.delisted \
|grep -v '^#\|:' \
|while read IP; do iptables -w -D dshield -s $IP -j DROP || iptables -wv -D dshield -s $IP -j LOGDROP; done
fi
# prepare for next time.
diff -wbay $blacklistf.last $blacklistf > $blacklistf.diff
# save IPtable rules
iptables-save > /etc/iptables.up.rules
exit

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@ -21,6 +21,9 @@ cp conf/blacklist /etc/cron.daily/blacklist
chmod a+x /etc/cron.daily/blacklist
time /etc/cron.daily/blacklist
source conf/dialog.sh
#cp conf/dshield /etc/cron.daily/dshield
#chmod +x /etc/cron.daily/dshield
#time /etc/cron.daily/blacklist
iptables-save > /etc/iptables.up.rules
sed -i -e "\$apre-up ipset restore < /etc/ipset.up.rules" /etc/network/interfaces
sed -i -e "\$apre-up iptables-restore < /etc/iptables.up.rules" /etc/network/interfaces