block country using simple script
#!/bin/bash
### Block all traffic from AFGHANISTAN (af) and CHINA (CN). Use ISO code ###
ISO="af cn uk"
### Set PATH ###
IPT=/usr/sbin/iptables
WGET=/usr/bin/wget
EGREP=/bin/egrep
### No editing below ###
SPAMLIST="countrydrop"
ZONEROOT="/root/iptables"
DLROOT="http://www.ipdeny.com/ipblocks/data/countries"
cleanOldRules(){
$IPT -F
$IPT -X
$IPT -t nat -F
$IPT -t nat -X
$IPT -t mangle -F
$IPT -t mangle -X
$IPT -P INPUT ACCEPT
$IPT -P OUTPUT ACCEPT
$IPT -P FORWARD ACCEPT
}
# create a dir
[ ! -d $ZONEROOT ] && /bin/mkdir -p $ZONEROOT
# clean old rules
cleanOldRules
# create a new iptables list
$IPT -N $SPAMLIST
for c in $ISO
do
# local zone file
tDB=$ZONEROOT/$c.zone
# get fresh zone file
$WGET -O $tDB $DLROOT/$c.zone
# country specific log message
SPAMDROPMSG="$c Country Drop"
# get
BADIPS=$(egrep -v "^#|^$" $tDB)
for ipblock in $BADIPS
do
$IPT -A $SPAMLIST -s $ipblock -j LOG --log-prefix "$SPAMDROPMSG"
$IPT -A $SPAMLIST -s $ipblock -j DROP
done
done
# Drop everything
$IPT -I INPUT -j $SPAMLIST
$IPT -I OUTPUT -j $SPAMLIST
$IPT -I FORWARD -j $SPAMLIST
# call your other iptable script
# /path/to/other/iptables.sh
exit 0
Written by K2patel
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