Commit | Line | Data |
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775bd287 | 1 | ### -*-sh-*- |
bfdc045d MW |
2 | ### |
3 | ### Firewall configuration for vampire | |
4 | ### | |
5 | ### (c) 2008 Mark Wooding | |
6 | ### | |
7 | ||
8 | ###----- Licensing notice --------------------------------------------------- | |
9 | ### | |
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. | |
14 | ### | |
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. | |
19 | ### | |
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. | |
23 | ||
24 | ###-------------------------------------------------------------------------- | |
bfdc045d MW |
25 | ### vampire-specific rules. |
26 | ||
a4d8cae3 | 27 | m4_divert(86)m4_dnl |
bfdc045d MW |
28 | ## Externally visible services. |
29 | allowservices inbound tcp \ | |
30 | finger ident \ | |
f98dfdf6 | 31 | dns iodine \ |
bfdc045d | 32 | ssh \ |
00851a0a | 33 | smtp submission \ |
bfdc045d MW |
34 | gnutella_svc \ |
35 | ftp ftp_data \ | |
36 | rsync \ | |
00851a0a | 37 | imaps \ |
781acc94 | 38 | disorder mpd \ |
deee9430 | 39 | http https squid \ |
fec59143 MW |
40 | git \ |
41 | tor_public tor_directory i2p | |
bfdc045d | 42 | allowservices inbound udp \ |
f98dfdf6 | 43 | dns iodine \ |
bfdc045d | 44 | tripe \ |
fec59143 MW |
45 | gnutella_svc \ |
46 | i2p | |
bfdc045d | 47 | |
d84128ea MW |
48 | ## Extend some services to local untrusted hosts. |
49 | clearchain inbound-untrusted | |
e2c5d32a MW |
50 | run iptables -A inbound -j inbound-untrusted -s $net_inet_untrusted |
51 | run ip6tables -A inbound -j inbound-untrusted -s $net_inet6_untrusted | |
bfdc045d | 52 | |
d84128ea MW |
53 | allowservices inbound-untrusted tcp \ |
54 | dns \ | |
55 | netbios_ssn microsoft_ds | |
56 | allowservices inbound-untrusted udp \ | |
57 | dns \ | |
58 | tftp | |
42e91fdf | 59 | |
bfdc045d MW |
60 | ## Provide syslog for evolution. |
61 | run iptables -A inbound -j ACCEPT \ | |
62 | -s 172.29.198.2 \ | |
63 | -p udp --destination-port $port_syslog | |
64 | ||
d6dd88f5 MW |
65 | ## Watch outgoing Tor usage. |
66 | run iptables -A OUTPUT -m multiport \ | |
67 | -p tcp --source-ports $port_tor_public,$port_tor_directory | |
68 | ||
bfdc045d MW |
69 | ## Other interesting things. |
70 | dnsresolver inbound | |
1ee6211d | 71 | ntpclient inbound $ntp_servers |
bfdc045d | 72 | |
6e318c09 MW |
73 | ## IPv6 6-in-4 tunnel. |
74 | run iptables -A inbound -j ACCEPT \ | |
75 | -p $proto_ipv6 -s 216.66.80.26 | |
76 | ||
fdaf00a6 MW |
77 | ## NAT for RFC1918 addresses. |
78 | for i in PREROUTING OUTPUT POSTROUTING; do | |
79 | run iptables -t nat -P $i ACCEPT 2>/dev/null || : | |
80 | run iptables -t nat -F $i 2>/dev/null || : | |
81 | done | |
82 | run iptables -t nat -F | |
83 | run iptables -t nat -X | |
84 | ||
85 | run iptables -t nat -N outbound | |
f513127a | 86 | run iptables -t nat -A outbound -j RETURN ! -o eth0.0 |
fdaf00a6 MW |
87 | run iptables -t nat -A outbound -j RETURN ! -s 172.29.198.0/23 |
88 | run iptables -t nat -A outbound -j RETURN -d 62.49.204.144/28 | |
89 | run iptables -t nat -A outbound -j RETURN -d 172.29.198.0/23 | |
90 | run iptables -t nat -A outbound -j SNAT --to-source 62.49.204.158 | |
91 | run iptables -t nat -A POSTROUTING -j outbound | |
92 | ||
d119795e MW |
93 | ## Set up NAT protocol helpers. In particular, SIP needs some special |
94 | ## twiddling. | |
95 | run modprobe nf_conntrack_sip \ | |
96 | ports=5060 \ | |
97 | sip_direct_signalling=0 \ | |
98 | sip_direct_media=0 | |
99 | for p in ftp sip h323; do | |
100 | run modprobe nf_nat_$p | |
101 | done | |
102 | ||
3adc5b0b MW |
103 | ## Forbid anything complicated to the NAT address. |
104 | run iptables -A INPUT -d 62.49.204.158 ! -p icmp -j REJECT | |
105 | ||
bfdc045d MW |
106 | m4_divert(-1) |
107 | ###----- That's all, folks -------------------------------------------------- |