$ nc [-options] [HostName or IP] [PortNumber]
# cat server-list.txt 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.5 192.168.1.6 192.168.1.7
# vi port_scan.sh #!/bin/sh for server in `more server-list.txt` do #echo $i nc -zvw3 $server 22 done
$ chmod +x port_scan.sh
# sh port_scan.sh Connection to 192.168.1.2 22 port [tcp/ssh] succeeded! Connection to 192.168.1.3 22 port [tcp/ssh] succeeded! Connection to 192.168.1.4 22 port [tcp/ssh] succeeded! Connection to 192.168.1.5 22 port [tcp/ssh] succeeded! Connection to 192.168.1.6 22 port [tcp/ssh] succeeded! Connection to 192.168.1.7 22 port [tcp/ssh] succeeded!
转自:https://blog.csdn.net/weixin_30599809/article/details/116639299