• Полезные трюки при работе с netcat

server# nc -v -u -z -w 3 voip1.un 5060
Connection to voip1.un (192.168.40.152) 5060 port [udp/sip] succeeded!

gate.isp.un:~# cat ips.txt | while read ip; do nc -z -v $ip 3389; done

- val@val:~/scripts$ cat ports.txt | while read p; do nc -z -v radio.specialist.ru $p; done