If the /etc/minidlna.conf contains a line e.g.
with more than one network card in the system (e.g. one connected to LAN, the other to the WAN), minidlna does not observe this restriction for the http side and udp port 1900, only for its main udp port. This could result in a serious breach of security if for example the other interface is exposed the WAN, the setting however restricts to the LAN only.
Netstat shows (http port set to 81):
netstat -nap | grep minid
tcp 0 0 0.0.0.0:81 0.0.0.0:* LISTEN 15073/minidlnad
udp 0 0 192.168.x.x:36151 0.0.0.0:* 15073/minidlnad
udp 0 0 0.0.0.0:1900 0.0.0.0:* 15073/minidlnad
It might be an idea to permit more than one network_interface being bound (e.g. lo,eth0).