Creating your own NIS maps

By modifying /var/yp/Makefile, you can create your own NIS maps.

For example, we have telephone numbers in file /etc/telephones


Jen   5-3906
Mike  5-1234
Dave  5-2345

To generate a NIS map for telephones, modify /var/yp/Makefile on the NIS server as follows:
after NETMASKS = $(YPSRCDIR)/netmasks, create a new line with


TELEPHONES  = $(YPSRCDIR)/telephones

Add telephones to the list of NIS maps:


ALL =   passwd group netgrp telephones

In end of the file, create a new entry


telephones: $(TELEPHONES) $(YPDIR)/Makefile
        @echo "Updating $@..."
        @$(AWK) '{ print $$1"\t"$$0 }' $(TELEPHONES) | $(DBLOAD) \
        -r -i $(TELEPHONES) -o $(YPMAPDIR)/$@ - $@
        -@$(NOPUSH) || $(YPPUSH) -d $(DOMAIN) $@

NOTE: each new line after telephones: starts with < Tab > .

Re-build the NIS maps:


cd /var/yp; make

Check if you can get the phone numbers on the client through NIS:


ypcat telephones

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