core-v4.1

#!/bin/sh -eu

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# core v4.1
# The Unlicense

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type tor || exit 1
[ $(id -u) -ne 0 ] && echo 'run as root !' && exit 2

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PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
DNS_PORT=9053; TRANS_PORT=9040; VIRTUAL_ADDR=10.192.0.0/10; TOR_UID='debian-tor'
RESERVED_IP='255.255.255.255/32 240.0.0.0/4 233.252.0.0/24 224.0.0.0/4 203.0.113.0/24 198.51.100.0/24 198.18.0.0/15 192.168.0.0/16 192.88.99.0/24 192.0.2.0/24 192.0.0.0/24 172.16.0.0/12 169.254.0.0/16 127.0.0.0/8 100.64.0.0/10 10.0.0.0/8 0.0.0.0/8'

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iptables -t nat -F; iptables -t nat -X; iptables -t nat -Z

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iptables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports $DNS_PORT
iptables -t nat -A OUTPUT -p tcp -d $VIRTUAL_ADDR --syn -j REDIRECT --to-ports $TRANS_PORT

iptables -t nat -A OUTPUT -m owner --uid-owner $TOR_UID -j RETURN
iptables -t nat -A OUTPUT -o lo -j RETURN

for reserved_ip in $RESERVED_IP; do
  iptables -t nat -A OUTPUT -d $reserved_ip -j RETURN
done

iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports $TRANS_PORT

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iptables -t nat -nvL

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iptables -F; iptables -X; iptables -Z

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iptables -A INPUT -m state --state INVALID -j DROP
iptables -A INPUT -m conntrack --ctstate INVALID -j DROP

iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -j DROP
iptables -P INPUT DROP

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iptables -A FORWARD -j DROP
iptables -P FORWARD DROP

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iptables -A OUTPUT -m state --state INVALID -j DROP
iptables -A OUTPUT -m conntrack --ctstate INVALID -j DROP

iptables -A OUTPUT -m state --state ESTABLISHED -j ACCEPT

iptables -A OUTPUT -p udp -d 127.0.0.1 --dport $DNS_PORT -j ACCEPT
iptables -A OUTPUT -p tcp -d 127.0.0.1 --dport $TRANS_PORT --syn -j ACCEPT

iptables -A OUTPUT -p tcp -m owner --uid-owner $TOR_UID -m state --state NEW --syn -j ACCEPT
iptables -A OUTPUT -d 127.0.0.1 -o lo -j ACCEPT

for reserved_ip in $RESERVED_IP; do
  iptables -A OUTPUT -d $reserved_ip -j DROP
done

iptables -A OUTPUT -j DROP
iptables -P OUTPUT DROP

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iptables -nvL

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[ ! -e /etc/tor/torrc.bak ] && cp -v /etc/tor/torrc /etc/tor/torrc.bak

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{
  echo DNSPort 127.0.0.1:$DNS_PORT
  echo AutomapHostsOnResolve 1
  echo AutomapHostsSuffixes .onion
  echo
  echo TransPort 127.0.0.1:$TRANS_PORT
  echo VirtualAddrNetwork $VIRTUAL_ADDR
} > /etc/tor/torrc; cat /etc/tor/torrc; /etc/init.d/tor restart

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echo '匿名化が完了しました！'; echo 'Ctrl+C(^C)を押して終了してください。'; echo 'すべてを元に戻したい場合は、Enterを押してください。'; read STOP

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iptables -t nat -F; iptables -t nat -X; iptables -t nat -Z; iptables -F; iptables -X; iptables -Z
iptables -P INPUT ACCEPT; iptables -P FORWARD ACCEPT; iptables -P OUTPUT ACCEPT
iptables -t nat -nvL; iptables -nvL

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[ -e /etc/tor/torrc.bak ] && mv -v /etc/tor/torrc.bak /etc/tor/torrc

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/etc/init.d/tor stop

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