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Editorial Team
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Asked: 2026-06-09T12:11:19+00:00

According to following article, I can create a simple socket in Java to check

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According to following article, I can create a simple socket in Java to check the availability of a service. However, a port number is needed to check the service.

Check service availability from java

However, if I only have the service name defined in /etc/services, how can I check the service availability? Do I have to get the port number by service name at first? Reference to the following question:

Port to Service Name in Java?

I am expecting some more native way to make OS to translate the service name for me rather than translate it by myself in Java. Thanks.

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1 Answer

  1. Editorial Team

    If you really don’t want to parse /etc/services I fear you’re looking at some JNI or JNA implementation of getservbyname().

    I would perhaps start by parsing the services file, and look at the native implementation if this isn’t really good enough. Abstract/wrap it so swapping one solution for another isn’t so painful.

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