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vikarjramun
Asked: 2016-07-03 13:15:03 +0800 CST

Software that listens on a port, and shuts down Ubuntu

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I am currently running Ubuntu 12.04 LTS (installed using Wubi) on a Dell Dimention 3000 (not a server). I want to install some software that will listen on a certain port, and shut down the system upon either a connection, or a command. I have tried using SSH, but I want something faster. Something similar to Tomcat's shutdown port is what I am looking for. Another option is possibly a tomcat webapp (I run tomcat on that server), that on load will shut down my computer. However, I definitely prefer another software to handle that task. Any help is appreciated.

Thank you very much, vikarjramun

12.04

2 Answers

  1. A simple Google search for "perl tcp server example" will show your several (405,000) examples of how to write a simple client (to send a "shutdown" message to port 30102 on the server) and a simple TCP/IP server to listen for the connection on port 30102, do the desired identification/authentication/authorization dance, then (if the server is started as root) shutdown the system.

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  2. Best Answer

    Specto sounds like what you want, install it with:

    sudo apt-get install specto

    Then launch it with specto or search for it in the dash. To set it to listen on a port and then shutdown the machine when there is activity do:

    1. Click the Add button and then go System > Port.

    Add Port Watch

    1. Enter the name of the watch, the refresh interval and the port number in the first tab.

    General Watch Preferences

    1. Go to the Advanced options tab and set it to run sudo poweroff when there is activity on that port.

    Run command on activity

    1. In order for it to work you will need to add specto to your startup items and run it with sudo too.
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