You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
31 lines
823 B
Plaintext
31 lines
823 B
Plaintext
10 years ago
|
#!/bin/sh
|
||
|
|
# Block SSH connections from CN etc.
|
||
|
|
#
|
||
|
|
# This downloads a list of IP addresses from some website via unencrypted HTTP and then
|
||
|
|
# blocks this list of IP addresses without filtering. You should probably not use this
|
||
|
|
# script.
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
ports="ssh,websm" # comma-separated for iptables -m multiport
|
||
|
|
countries="cn hk" # space-separated
|
||
|
|
|
||
|
|
for country in $countries; do
|
||
|
|
ipset -q -N geoblock-$country hash:net || true
|
||
|
|
|
||
|
|
tmp_zone=`mktemp`
|
||
|
|
curl -s -o $tmp_zone http://www.ipdeny.com/ipblocks/data/aggregated/$country-aggregated.zone
|
||
|
|
|
||
|
|
for ip in $(cat $tmp_zone); do
|
||
|
|
ipset -A geoblock-$country "$ip" -exist
|
||
|
|
done
|
||
|
|
|
||
|
|
rm -f $tmp_zone
|
||
|
|
|
||
|
|
rule_spec="-p tcp -m multiport --dports $ports \
|
||
|
|
-m set --match-set geoblock-$country src -j REJECT"
|
||
|
|
if ! iptables -C INPUT $rule_spec; then
|
||
|
|
iptables -I INPUT $rule_spec
|
||
|
|
fi
|
||
|
|
done
|