/etc/ is in arno-iptables-firewall 2.0.1.d-1.
This file is owned by root:root, with mode 0o755.
..
/etc/arno-iptables-firewall/plugins/pptp-vpn.conf
/etc/logrotate.d/
/etc/logrotate.d/arno-iptables-firewall.conf
/etc/rsyslog.d/
/etc/rsyslog.d/arno-iptables-firewall.conf
/etc/arno-iptables-firewall/
/etc/arno-iptables-firewall/firewall.conf
/etc/arno-iptables-firewall/custom-rules
/etc/arno-iptables-firewall/plugins/
/etc/arno-iptables-firewall/plugins/traffic-shaper.conf
/etc/arno-iptables-firewall/plugins/linux-upnp-igd.conf
/etc/arno-iptables-firewall/plugins/dyndns-host-open.conf
/etc/arno-iptables-firewall/plugins/rpc.conf
/etc/arno-iptables-firewall/plugins/transparent-proxy.conf
/etc/arno-iptables-firewall/plugins/multiroute.conf
/etc/arno-iptables-firewall/plugins/outbound-snat.conf
/etc/arno-iptables-firewall/plugins/ipsec-vpn.conf
/etc/arno-iptables-firewall/plugins/transparent-dnat.conf
/etc/arno-iptables-firewall/plugins/traffic-accounting.conf
/etc/arno-iptables-firewall/plugins/mac-address-filter.conf
/etc/arno-iptables-firewall/plugins/ipv6-over-ipv4.conf
/etc/arno-iptables-firewall/plugins/ssh-brute-force-protection.conf
/etc/arno-iptables-firewall/plugins/dmz-dnat.conf
/etc/arno-iptables-firewall/plugins/sip-voip.conf
/etc/arno-iptables-firewall/plugins/ids-protection.conf
/etc/arno-iptables-firewall/plugins/dsl-ppp-modem.conf
/etc/arno-iptables-firewall/plugins/nat-loopback.conf
/etc/arno-iptables-firewall/conf.d/
/etc/init.d/
/etc/init.d/arno-iptables-firewall