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classify.m4: Explicitly class 255.255.255.255 as broadcast.
[firewall]
/
vampire.m4
diff --git
a/vampire.m4
b/vampire.m4
index
3fb9595
..
f134bb0
100644
(file)
--- a/
vampire.m4
+++ b/
vampire.m4
@@
-27,29
+27,17
@@
m4_divert(86)m4_dnl
## Externally visible services.
allowservices inbound tcp \
m4_divert(86)m4_dnl
## Externally visible services.
allowservices inbound tcp \
-
finger
ident \
+ ident \
ssh \
ssh \
- smtp submission \
- gnutella_svc \
- ftp ftp_data \
- rsync \
- imaps \
- disorder mpd \
- http https squid \
- git \
tor_public tor_directory i2p
allowservices inbound udp \
tripe \
gnutella_svc \
i2p
tor_public tor_directory i2p
allowservices inbound udp \
tripe \
gnutella_svc \
i2p
-## Extend some services to local untrusted hosts.
-clearchain inbound-untrusted
-run iptables -A inbound -j inbound-untrusted -s $net_inet_untrusted
-run ip6tables -A inbound -j inbound-untrusted -s $net_inet6_untrusted
-
allowservices inbound-untrusted tcp \
dns \
allowservices inbound-untrusted tcp \
dns \
+ lpd \
netbios_ssn microsoft_ds
allowservices inbound-untrusted udp \
dns \
netbios_ssn microsoft_ds
allowservices inbound-untrusted udp \
dns \
@@
-69,5
+57,9
@@
dnsresolver inbound
dnsserver inbound
ntpclient inbound $ntp_servers
dnsserver inbound
ntpclient inbound $ntp_servers
+## Provide NTP service to untrusted clients.
+ip46tables -A inbound-untrusted -p udp -j ACCEPT \
+ --source-port 123 --destination-port 123
+
m4_divert(-1)
###----- That's all, folks --------------------------------------------------
m4_divert(-1)
###----- That's all, folks --------------------------------------------------