The internet relies on a system of addresses that treats every computer, tablet and smartphone as a distinct device, allowing all of them to communicate with each other. Because many kinds of devices ...

A number from 0 through 1023 used to identify a network service on a private IP network or the public Internet. Residing in a field in the TCP or UDP header, the port number directs packets to the ...

This article is excerpted from the book DevOps Troubleshooting: Linux Server Best Practices and is reprinted by permission of publisher Pearson/Addison-Wesley Professional. Many different problems can ...

Any network connection made between computers (TCP or UDP protocols), it is done through the ports. Imagine these as entry points or gateways which is used by a service or application. As more client ...