X-Git-Url: https://git.distorted.org.uk/~mdw/firewall/blobdiff_plain/a3972fea9c58e172fb2a1c1dc7362ec6a40fa4bd..e91f4bbf73b2117374ce030959f75b7c7d8fae4a:/jem.m4 diff --git a/jem.m4 b/jem.m4 index f9922c9..26f1398 100644 --- a/jem.m4 +++ b/jem.m4 @@ -27,17 +27,23 @@ ## This host isn't a router. setconf(forward, 0) +## This host is involved in a routing asymmetry. +setconf(rp_filter, 0) +setconf(log_martians, 0) + ###-------------------------------------------------------------------------- ### Network interfaces. m4_divert(44)m4_dnl ## Interface definitions. -if_untrusted=eth0 -if_trusted=eth0 -if_vpn=eth0 -if_iodine=eth0 -if_its_mz=eth0 -if_its_pi=eth0 +if_dmz=eth0 +if_trusted=eth1 +if_safe=$if_dmz,$if_trusted +if_untrusted=$if_dmz,$if_trusted +if_vpn=$if_dmz,$if_trusted +if_iodine=$if_dmz,$if_trusted +if_its_mz=$if_dmz,$if_trusted +if_its_pi=$if_dmz,$if_trusted m4_divert(-1) ###-------------------------------------------------------------------------- @@ -47,6 +53,7 @@ m4_divert(82)m4_dnl ## Externally visible services. allowservices inbound tcp \ ssh \ + ident \ smtp submission \ http https \ imaps @@ -58,15 +65,5 @@ for p in tcp udp; do -p $p --destination-port $port_dns done -## Allow smb and nmb to untrusted hosts. This is a bit experimental. -run iptables -A inbound -j ACCEPT \ - -s 172.29.198.0/24 \ - -p udp -m multiport --destination-ports \ - $port_netbios_ns,$port_netbios_dgm -run iptables -A inbound -j ACCEPT \ - -s 172.29.198.0/24 \ - -p tcp -m multiport --destination-ports \ - $port_netbios_ssn,$port_microsoft_ds - m4_divert(-1) ###----- That's all, folks --------------------------------------------------