Network addressing. In the interest of simplicity (and reliability), this How-To uses only numeric
IP addresses. However, if DNS resolution is available on your network, it is possible to use host names
in lieu of IP addresses in configuring Cluster. Alternatively, you can use the hosts file (typically /etc/
hosts for Linux and other Unix-like operating systems, C:\WINDOWS\system32\drivers\etc
\hosts on Windows, or your operating system's equivalent) for providing a means to do host lookup if
such is available.
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