local.m4: Reinstate detailed filtering from scary networks.

[firewall] / vampire.m4

diff --git a/vampire.m4 b/vampire.m4
index 3fb9595..e016358 100644 (file)
--- a/vampire.m4
+++ b/vampire.m4
@@ -50,6 +50,7 @@ run ip6tables -A inbound -j inbound-untrusted -s $net_inet6_untrusted
 
 allowservices inbound-untrusted tcp \
        dns \
+       lpd \
        netbios_ssn microsoft_ds
 allowservices inbound-untrusted udp \
        dns \
@@ -69,5 +70,13 @@ dnsresolver inbound
 dnsserver inbound
 ntpclient inbound $ntp_servers
 
+## Provide NTP service to untrusted clients.
+iptables -A inbound -p udp -j ACCEPT \
+       --source-port 123 --destination-port 123 \
+       -s 172.29.198.0/23
+ip6tables -A inbound -p udp -j ACCEPT \
+       --source-port 123 --destination-port 123 \
+       -s 2001:470:9740::/48
+
 m4_divert(-1)
 ###----- That's all, folks --------------------------------------------------