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Unable to setup / install Cloudera on slave machine.

I am having trouble installing Cloudera on a slave machine. Previously in the install it searches and successfully finds a cluster machine (both master & slave are CentOS7 machines). Then it proceeds to install and I get the following error (see attached image). I also included the error details (see attached). It highlights in red this error line.

socket.gaierror: [Errno -2] Name or service not known

On Cloudera’s support page some suggestions point to changing a file in the /etc (configuration) folder but my folder structure is different. Please advise on anything else I can install / configure / reconfigure. Thanks.
LinuxLinux DistributionsInstallationLinux Networking

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8/22/2022 - Mon