mirror of
git://git.acid.vegas/tools.git
synced 2024-11-22 07:56:39 +00:00
71 lines
2.0 KiB
Plaintext
71 lines
2.0 KiB
Plaintext
|
#!/bin/sh
|
||
|
|
# IRCd Firewall - Developed by acidvegas (https://git.acid.vegas/supertools)
|
||
|
|
|
||
|
|
# nano /etc/default/grub
|
||
|
|
# Add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT then run update-grub
|
||
|
|
|
||
|
|
# Configuration
|
||
|
|
IP_MAIN="10.0.0.1" # Change this to your IP
|
||
|
|
IP_HUB="10.0.0.2" # Change this to your hub IP
|
||
|
|
PORT_SSH=22 # Default 22
|
||
|
|
PORT_HUB=5900 # Default 5900
|
||
|
|
|
||
|
|
# Kernel hardening settings
|
||
|
|
mkdir -p /etc/sysctl.d
|
||
|
|
{
|
||
|
|
printf "net.ipv4.conf.all.accept_source_route = 0\n"
|
||
|
|
printf "net.ipv6.conf.all.accept_source_route = 0\n"
|
||
|
|
printf "net.ipv4.conf.all.rp_filter = 1\n"
|
||
|
|
printf "net.ipv4.conf.default.rp_filter = 1\n"
|
||
|
|
printf "net.ipv4.conf.all.accept_redirects = 0\n"
|
||
|
|
printf "net.ipv6.conf.all.accept_redirects = 0\n"
|
||
|
|
printf "net.ipv4.conf.default.accept_redirects = 0\n"
|
||
|
|
printf "net.ipv6.conf.default.accept_redirects = 0\n"
|
||
|
|
printf "net.ipv4.conf.all.log_martians = 1\n"
|
||
|
|
printf "kernel.randomize_va_space = 2\n"
|
||
|
|
printf "fs.suid_dumpable = 0\n"
|
||
|
|
} > /etc/sysctl.d/99-custom-hardening.conf
|
||
|
|
|
||
|
|
# Apply hardening settings
|
||
|
|
sysctl -p /etc/sysctl.d/99-custom-hardening.conf
|
||
|
|
|
||
|
|
# Flush existing rules
|
||
|
|
iptables -F
|
||
|
|
iptables -X
|
||
|
|
iptables -t nat -F
|
||
|
|
iptables -t nat -X
|
||
|
|
iptables -t mangle -F
|
||
|
|
iptables -t mangle -X
|
||
|
|
|
||
|
|
# Default chain policies
|
||
|
|
iptables -P INPUT DROP
|
||
|
|
iptables -P FORWARD DROP
|
||
|
|
iptables -P OUTPUT ACCEPT
|
||
|
|
|
||
|
|
# Common Firewall rules
|
||
|
|
iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
||
|
|
iptables -A INPUT -p icmp --icmp-type echo-request -j DROP
|
||
|
|
iptables -A INPUT -i lo -j ACCEPT
|
||
|
|
|
||
|
|
# Allow SSH
|
||
|
|
iptables -A INPUT -p tcp -s $IP_MAIN --dport $PORT_SSH -j ACCEPT
|
||
|
|
|
||
|
|
# Allow IRCd Hub
|
||
|
|
iptables -A INPUT -p tcp -s $IP_HUB --dport $PORT_HUB -j ACCEPT
|
||
|
|
|
||
|
|
# Allow IRCd Ports
|
||
|
|
iptables -A INPUT -p tcp --dport 6660:6669 -j ACCEPT
|
||
|
|
iptables -A INPUT -p tcp --dport 7000 -j ACCEPT
|
||
|
|
|
||
|
|
# Allow IRCd TLS Ports
|
||
|
|
iptables -A INPUT -p tcp --dport 6697 -j ACCEPT
|
||
|
|
iptables -A INPUT -p tcp --dport 9999 -j ACCEPT
|
||
|
|
|
||
|
|
# Save rules
|
||
|
|
apt-get install -y iptables-persistent
|
||
|
|
netfilter-persistent save
|
||
|
|
systemctl enable netfilter-persistent && systemctl start netfilter-persistent
|
||
|
|
|
||
|
|
# Show rules
|
||
|
|
iptables -L -v -n
|