for cmd in dig host mtr nslookup nc netcat nmap p ping ping6 socat \
telnet t tt \
tcptraceroute tcptraceroute6 tracert tracert6 traceroute traceroute6 \
for cmd in dig host mtr nslookup nc netcat nmap p ping ping6 socat \
telnet t tt \
tcptraceroute tcptraceroute6 tracert tracert6 traceroute traceroute6 \