~mdw / firewall / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ###-------------------------------------------------------------------------- | |
| 08926d25 MW |
25 | ### Config settings. |
| 26 | ||
| 27 | ## This router is involved in a routing asymmetry. | |
| 28 | setconf(rp_filter, 0) | |
| 29 | setconf(log_martians, 0) | |
| 30 | ||
| 31 | ###-------------------------------------------------------------------------- | |
| bfdc045d MW |
32 | ### Network interfaces. |
| 33 | ||
| 34 | m4_divert(44)m4_dnl | |
| 35 | ## Interface definitions. | |
| 08926d25 MW |
36 | if_dmz=eth0.0 |
| 37 | if_trusted=eth0.1 | |
| 38 | if_safe=$if_dmz,$if_trusted | |
| 39 | if_untrusted=eth0.3 | |
| bfdc045d | 40 | if_vpn=vpn-+ |
| f98dfdf6 | 41 | if_iodine=dns+ |
| 08926d25 MW |
42 | if_its_mz=$if_dmz,$if_trusted |
| 43 | if_its_pi=$if_dmz,$if_trusted | |
| bfdc045d MW |
44 | |
| 45 | m4_divert(-1) | |
| 46 | ###-------------------------------------------------------------------------- | |
| 47 | ### vampire-specific rules. | |
| 48 | ||
| 49 | m4_divert(82)m4_dnl | |
| 50 | ## Externally visible services. | |
| 51 | allowservices inbound tcp \ | |
| 52 | finger ident \ | |
| f98dfdf6 | 53 | dns iodine \ |
| bfdc045d | 54 | ssh \ |
| 00851a0a | 55 | smtp submission \ |
| bfdc045d MW |
56 | gnutella_svc \ |
| 57 | ftp ftp_data \ | |
| 58 | rsync \ | |
| 00851a0a | 59 | imaps \ |
| 781acc94 | 60 | disorder mpd \ |
| deee9430 | 61 | http https squid \ |
| fec59143 MW |
62 | git \ |
| 63 | tor_public tor_directory i2p | |
| bfdc045d | 64 | allowservices inbound udp \ |
| f98dfdf6 | 65 | dns iodine \ |
| bfdc045d | 66 | tripe \ |
| fec59143 MW |
67 | gnutella_svc \ |
| 68 | i2p | |
| bfdc045d MW |
69 | |
| 70 | ## Provide DNS resolution to local untrusted hosts. | |
| 71 | for p in tcp udp; do | |
| 72 | run iptables -A inbound -j ACCEPT \ | |
| 73 | -s 172.29.198.0/24 \ | |
| 74 | -p $p --destination-port $port_dns | |
| 75 | done | |
| 76 | ||
| 42e91fdf MW |
77 | ## Allow smb and nmb to untrusted hosts. This is a bit experimental. |
| 78 | run iptables -A inbound -j ACCEPT \ | |
| 79 | -s 172.29.198.0/24 \ | |
| 80 | -p udp -m multiport --destination-ports \ | |
| 81 | $port_netbios_ns,$port_netbios_dgm | |
| 82 | run iptables -A inbound -j ACCEPT \ | |
| 83 | -s 172.29.198.0/24 \ | |
| 84 | -p tcp -m multiport --destination-ports \ | |
| 85 | $port_netbios_ssn,$port_microsoft_ds | |
| 86 | ||
| bfdc045d MW |
87 | ## Provide syslog for evolution. |
| 88 | run iptables -A inbound -j ACCEPT \ | |
| 89 | -s 172.29.198.2 \ | |
| 90 | -p udp --destination-port $port_syslog | |
| 91 | ||
| d6dd88f5 MW |
92 | ## Watch outgoing Tor usage. |
| 93 | run iptables -A OUTPUT -m multiport \ | |
| 94 | -p tcp --source-ports $port_tor_public,$port_tor_directory | |
| 95 | ||
| bfdc045d MW |
96 | ## Other interesting things. |
| 97 | dnsresolver inbound | |
| 1ee6211d | 98 | ntpclient inbound $ntp_servers |
| bfdc045d MW |
99 | |
| 100 | m4_divert(-1) | |
| 101 | ###----- That's all, folks -------------------------------------------------- |