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n1mh/checking_open_ports_with_bash

Created November 30, 2016 09:13
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checking open ports using bash
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checking_open_ports_with_bash
#!/bin/bash
# adapted from:
# https://stackoverflow.com/questions/9609130/quick-way-to-find-if-a-port-is-open-on-linux#9609247
# exec 6<>/dev/tcp/ip.addr.of.server/445
# echo -e "GET / HTTP/1.0\n" >&6
# cat <&6
( exec 6<>/dev/tcp/127.0.0.1/22 && echo 'ssh open!' )|| echo 'ssh closed'
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