Bash Script: Test the status of Linux server ports without installing any commands

Using the “timeout” command, a Linux shell script has been written that tests the status of the ports of various services such as “DNS”, “DHCP” and “SSH” using the /dev/tcp pseudo device. without the need to install any additional software.

00:00 Introduction.
00:16 Writing shell script codes.
05:22 Explanation, shell script codes.

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by Linux Hacks and Tutorials

linux dns server