I get "ypserv[123]: refused connect from <ip:port> to procedure ypproc_match (testdomain,passwd.adjunct.byname;-1)" in logs

Solution Verified - Updated -

Issue

We changed the ypserver setup to a passwd.adjunct setup using the instructions from https://access.redhat.com/solutions/44965 . When trying to login with a NIS user, it fails and we get this message in logs:

ypserv[123]: refused connect from 10.0.0.1:5678 to procedure ypproc_match (testdomain,passwd.adjunct.byname;-1)

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • Network Information System (NIS)

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