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PORuby DNSSD Bonjour IP address discovery
 

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    <p>BACKGROUND</p> <p>I am trying to use Ruby DNSSD to discover the IP address of a few devices. </p> <p>My code will correctly discover the NAME of the devices. I tried to access the devices using the NAME.local. I have tried this method: <a href="https://github.com/jmitchener/ruby-dnssd-test/blob/master/main.rb" rel="nofollow">https://github.com/jmitchener/ruby-dnssd-test/blob/master/main.rb</a></p> <ul> <li>How do I find their IP address? Or</li> <li>Access those devices using the hostname? </li> </ul> <p>UPDATE</p> <p>I proved to my self that my theory that the Socket command is not searching past the /etc/hosts file</p> <p>I manually aded my three redeye units to the /etc/hosts file and was able to resolve the IP address. </p> <p>/etc/hosts</p> <pre><code>192.168.69.77 RedEye_B0105-92646.local. 192.168.69.75 RedEye_E0103-85245.local. 192.168.69.76 RedEye_B0104-99552.local. </code></pre> <p>code</p> <pre><code> @@reIP = Hash.new DNSSD.browse '_tf_redeye._tcp' do |reply| puts reply.name addr = Socket.getaddrinfo(reply.name + ".local.", nil, Socket::AF_INET) @@reIP[reply.name] = addr puts @@reIP end </code></pre> <p>output</p> <pre><code>RedEye_B0105-92646 {"RedEye_B0105-92646"=&gt;[["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 1, 6], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 2, 17], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 3, 0]]} RedEye_E0103-85245 {"RedEye_B0105-92646"=&gt;[["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 1, 6], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 2, 17], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 3, 0]], "RedEye_E0103-85245"=&gt;[["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 1, 6], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 2, 17], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 3, 0]]} RedEye_B0104-99552 {"RedEye_B0105-92646"=&gt;[["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 1, 6], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 2, 17], ["AF_INET", 0, "192.168.69.77", "192.168.69.77", 2, 3, 0]], "RedEye_E0103-85245"=&gt;[["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 1, 6], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 2, 17], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 3, 0]], "RedEye_B0104-99552"=&gt;[["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 1, 6], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 2, 17], ["AF_INET", 0, "192.168.69.76", "192.168.69.76", 2, 3, 0]]} </code></pre> <p>The question now is why is the Socket command not searching past the /etc/hosts file for IP resolution<br> 1. AVAHI and/or DNSSD is not caching the address as they are reports by the DNSSD.browse, possible a configuration setting<br> 2. I do not have a mDNS server installed or configured properly<br> 3. Something else is conflicting, like DNSMASQ </p>
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