This will tell me what I actually wanted to know.
-s 172.29.198.0/24 \
-p tcp --destination-port $port_squid
-s 172.29.198.0/24 \
-p tcp --destination-port $port_squid
+## Watch outgoing Tor usage.
+run iptables -A OUTPUT -m multiport \
+ -p tcp --source-ports $port_tor_public,$port_tor_directory
+
## Other interesting things.
dnsresolver inbound
ntpclient inbound 158.152.1.76 158.152.1.204 194.159.253.2
## Other interesting things.
dnsresolver inbound
ntpclient inbound 158.152.1.76 158.152.1.204 194.159.253.2