3 ### Firewall configuration for vampire
5 ### (c) 2008 Mark Wooding
8 ###----- Licensing notice ---------------------------------------------------
10 ### This program is free software; you can redistribute it and/or modify
11 ### it under the terms of the GNU General Public License as published by
12 ### the Free Software Foundation; either version 2 of the License, or
13 ### (at your option) any later version.
15 ### This program is distributed in the hope that it will be useful,
16 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ### GNU General Public License for more details.
20 ### You should have received a copy of the GNU General Public License
21 ### along with this program; if not, write to the Free Software Foundation,
22 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 ###--------------------------------------------------------------------------
25 ### vampire-specific rules.
28 ## Externally visible services.
29 allowservices inbound tcp \
42 tor_public tor_directory i2p
43 allowservices inbound udp \
49 ## Extend some services to local untrusted hosts.
50 clearchain inbound-untrusted
51 run iptables -A inbound -j inbound-untrusted \
54 allowservices inbound-untrusted tcp \
56 netbios_ssn microsoft_ds
57 allowservices inbound-untrusted udp \
61 ## Provide syslog for evolution.
62 run iptables -A inbound -j ACCEPT \
64 -p udp --destination-port $port_syslog
66 ## Watch outgoing Tor usage.
67 run iptables -A OUTPUT -m multiport \
68 -p tcp --source-ports $port_tor_public,$port_tor_directory
70 ## Other interesting things.
72 ntpclient inbound $ntp_servers
74 ## NAT for RFC1918 addresses.
75 for i in PREROUTING OUTPUT POSTROUTING; do
76 run iptables -t nat -P $i ACCEPT 2>/dev/null || :
77 run iptables -t nat -F $i 2>/dev/null || :
79 run iptables -t nat -F
80 run iptables -t nat -X
82 run iptables -t nat -N outbound
83 run iptables -t nat -A outbound -j RETURN ! -o eth0.0
84 run iptables -t nat -A outbound -j RETURN ! -s 172.29.198.0/23
85 run iptables -t nat -A outbound -j RETURN -d 62.49.204.144/28
86 run iptables -t nat -A outbound -j RETURN -d 172.29.198.0/23
87 run iptables -t nat -A outbound -j SNAT --to-source 62.49.204.158
88 run iptables -t nat -A POSTROUTING -j outbound
90 ## Set up NAT protocol helpers. In particular, SIP needs some special
92 run modprobe nf_conntrack_sip \
94 sip_direct_signalling=0 \
96 for p in ftp sip h323; do
97 run modprobe nf_nat_$p
100 ## Forbid anything complicated to the NAT address.
101 run iptables -A INPUT -d 62.49.204.158 ! -p icmp -j REJECT
104 ###----- That's all, folks --------------------------------------------------