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Major detection improvement

master
Stefatorus 2 years ago
parent
commit
8ea1dcab97
  1. 19
      Tools/firewall.sh
  2. 2
      Tools/whitelister.sh

19
Tools/firewall.sh

@ -33,13 +33,13 @@ apt -y -qq install curl iptables-persistent ipset conntrack > /dev/null
yum -y install curl iptables-service ipset-service conntrack > /dev/null
echo "Installed required depends."
# The port you want to protect. for ranges, use FROM:TO
protect_port=20003
protect_port=25565
# Max graylisted connections per second. This can be higher, and ensures an attack won't be too high for the second pass firewall.
graylist_verified=100
graylist_unverified=15
graylist_concurrent=3
graylist_verified=8
graylist_unverified=7
graylist_concurrent=2
# How many bytes before sending the player to the remote checker to check for info. Please don't change if you don't
# know what you're doing as you may get yourself locked out of the API.
@ -47,7 +47,7 @@ graylist_concurrent=3
checker_minconn=26214400
# MISC. THESE VALUES MAY CHANGE IN THE FUTURE
target_chain=INPUT
target_chain=DOCKER
country_list="https://raw.githubusercontent.com/herrbischoff/country-ip-blocks/master/ipv4/"
safety_list="https://api.entryrise.com/minewall/"
@ -64,7 +64,7 @@ ipset destroy mw_graylist
ipset destroy mw_whitelist
ipset destroy mw_checklist
ipset -N -! mw_blacklist hash:net maxelem 100000 timeout 300
ipset -N -! mw_blacklist hash:net maxelem 100000 timeout 3600
ipset -N -! mw_graylist hash:net maxelem 100000
ipset -N -! mw_whitelist hash:net maxelem 100000
ipset -N -! mw_checklist hash:net maxelem 30 timeout 300
@ -76,7 +76,7 @@ for ip in $(curl -L $safety_list/{wireless,residential,business}.iplist); do
done
# Create the graylist of safer countries. It's really important for the base check.
echo "Generating graylist for the firewall..."
for ip in $(curl -L $country_list/{ro,hu,gb,au,dk,bg,ie,pt,gr}.cidr); do
for ip in $(curl -L $country_list/{gb,de,fr,ro}.cidr); do
ipset -A mw_graylist $ip
done
@ -91,9 +91,10 @@ done
iptables -A MineWall -p tcp --dport $protect_port -m set --match-set mw_whitelist src -j ACCEPT
iptables -A MineWall -p tcp --dport $protect_port -m set --match-set mw_blacklist src -j DROP
iptables -A MineWall -p tcp --dport $protect_port --syn -m set --match-set mw_graylist src -m limit --limit $graylist_verified/s -j ACCEPT
iptables -A MineWall -p tcp --dport $protect_port --syn -m connlimit --connlimit-above $graylist_concurrent -j DROP
iptables -A MineWall -p tcp --dport $protect_port --syn -m limit --limit $graylist_unverified/s -j ACCEPT
iptables -A MineWall -p tcp --dport $protect_port --syn -m connlimit ! --connlimit-above $graylist_concurrent -j ACCEPT
iptables -A MineWall -p tcp --dport $protect_port --syn -m set --match-set mw_graylist src -m limit --limit $graylist_verified/s -j ACCEPT
iptables -A MineWall -p tcp --dport $protect_port --syn -j DROP

2
Tools/whitelister.sh

@ -5,7 +5,7 @@ safety_list="https://api.entryrise.com/minewall/"
# Make sure to change protect port to your own protect port.
# $6 > X means the packet count before validating user.
# Recommending a value for X between 10k (~100 seconds) and 50k (~500 seconds) for validation)
command_check=$(conntrack -L | awk '{if ($6 > 10000 && $4 == "ESTABLISHED" && $8 == "dport=20003") print $5}');
command_check=$(conntrack -L | awk '{if ($6 > 300000 && $4 == "ESTABLISHED" && $8 == "dport=20003") print $5}');
#command_check=$(conntrack -L | awk '{if ($6 > PACKETS_TO_WHITELIST && $4 == "CONNECTION FULLY RUNNING" && $8 == "dport=PORT OF SERVER") print $5}');
echo "Updating blacklist for firewall."

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