Network → Tools (administrators; one at a time, 30 runs a minute at
most, each run in the administration log): ping (4 ICMP echo requests), traceroute (up to 30
hops, reverse name and country of each), DNS test (whether Warda blocks a
name and why, what the upstream servers answer), TCP port test, Wake-on-LAN
(magic packet to the broadcast of the network), "who uses this address?"
(ARP, with the other machines seen on it) and DHCP test. Ping and
traceroute send ICMP themselves, IPv4 only: the service needs the
CAP_NET_RAW capability (given by warda.service; --cap-add NET_RAW for
Docker, in packaging/docker-compose.yml); without it they say so, the
other tools work.