Naming and Directory Services (DNS, NIS, and LDAP)

Using NIS in Conjunction With DNSTypically, NIS clients are configured with the nsswitch.conf file to use only NIS formachine name and address lookups. If this type of lookup fails, an NIS server canforward these lookups to DNS.▼How to Configure Machine Name and AddressLookup Through NIS and DNS1. Become superuser or assume an equivalent role.Roles contain authorizations and privileged commands. For more informationabout roles, see “Using Role-Based Access Control (Tasks)” in System AdministrationGuide: Security Services.2. The two map files, hosts.byname and hosts.byaddr must include theYP_INTERDOMAIN key. To test this key, edit the Makefile and modify thefollowing lines.#B=-bB=toB=-b#B=makedbm will now start with the -b flag when it makes the maps, and theYP_INTERDOMAIN key will be inserted into the ndbm files.3. Run the make command to rebuild maps.# /usr/ccs/bin/make hosts4. Check that all the NIS server’s /etc/resolv.conf files point to validnameservers.Note – If you have NIS servers that are not running Solaris, Release 2, make sureYP_INTERDOMAIN exists in the hosts maps.5. To enable DNS forwarding, restart each server.# svcadm restart network/nis/server:In this implementation of NIS, ypserv automatically starts with the -d option toforward requests to DNS.Chapter 6 • Administering NIS (Tasks) 111