diff --git a/etc/rc.local b/etc/rc.local new file mode 100755 index 0000000..098917f --- /dev/null +++ b/etc/rc.local @@ -0,0 +1,73 @@ +#!/bin/sh -e +# +# rc.local +# +# This script is executed at the end of each multiuser runlevel. +# Make sure that the script will "exit 0" on success or any other +# value on error. +# +# In order to enable or disable this script just change the execution +# bits. +# +# By default this script does nothing. + +#flush iptables +iptables -F +ip6tables -F +iptables -t nat -F +ip6tables -t nat -F + +#accept already established connections +iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT +ip6tables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT +iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT +ip6tables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT +#allow tor traffic +for tor in bind debian-tor; do( +iptables -t nat -A OUTPUT -m owner --uid-owner $tor -j RETURN +ip6tables -t nat -A OUTPUT -m owner --uid-owner $tor -j RETURN +iptables -A OUTPUT -m owner --uid-owner $tor -j ACCEPT +ip6tables -A OUTPUT -m owner --uid-owner $tor -j ACCEPT +)done + +#allow local communication +iptables -A OUTPUT -o lo -j ACCEPT +ip6tables -A OUTPUT -o lo -j ACCEPT +iptables -A INPUT -i lo -j ACCEPT +ip6tables -A INPUT -i lo -j ACCEPT +#unrestricted access to these IPs +for clearnet in 127.0.0.0/8; do( +iptables -t nat -A OUTPUT -d $clearnet -j RETURN +iptables -A OUTPUT -d $clearnet -j ACCEPT +) done +for clearnet in ::1; do( +ip6tables -t nat -A OUTPUT -d $clearnet -j RETURN +ip6tables -A OUTPUT -d $clearnet -j ACCEPT +) done +#accet IPv6 ICMP packages required for SLAAC +ip6tables -A INPUT -p ipv6-icmp -j ACCEPT +ip6tables -A OUTPUT -p ipv6-icmp -j ACCEPT +#allow querriying ntp servers +iptables -t nat -A OUTPUT -p udp --dport 123 -j RETURN +iptables -A OUTPUT -p udp --dport 123 -j ACCEPT +ip6tables -t nat -A OUTPUT -p udp --dport 123 -j RETURN +ip6tables -A OUTPUT -p udp --dport 123 -j ACCEPT +#redirect all outgoing DNS querries to our dns server +iptables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports 53 +ip6tables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports 53 +#redirect all other TCP traffic through tor +iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports 9040 +ip6tables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports 9040 +#reject everything else +iptables -A OUTPUT -j REJECT +ip6tables -A OUTPUT -j REJECT + +#uncomment to be able to directly connect with your own IP and allow no one else +#for clearnet in YOUR_IP_HERE;do( +#iptables -A INPUT -s $clearnet -j ACCEPT +#)done +#drop everything else (uncomment after adding your own IP above) +#iptables -A INPUT -j DROP +#ip6tables -A INPUT -j DROP + +exit 0