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

If the map or maps being pushed by the Makefile correspond to a domain otherthan the one returned by the command domainname on the master, you can makesure that they are pushed to the correct domain by starting make in the ypinitshell script with a proper identification of the variable DOM, as follows:# make DOM=domainname passwordThis pushes the password map to the intended domain, instead of the domain towhich the master belongs.9. To enable NIS as the naming service, type the following.# cp /etc/nsswitch.nis /etc/nsswitch.confThis replaces the current switch file with the default NIS-oriented switch file. Youcan edit this file as necessary.Master Supporting Multiple NIS DomainsNormally, an NIS master server supports only one NIS domain. However, if you areusing a master server to support multiple domains, you must slightly modify thesteps, as described in “Setting Up the Master Server With ypinit” on page 85, whensetting up the server to serve the additional domains.Run the domainname command on the server. The domain name returned by thecommand is the server’s default domain. The steps described in “Setting Up theMaster Server With ypinit” on page 85 will work properly for setting up service forthat domain. To configure service for any other domain, you must modify the ypinitshell script as follows.# make DOM=correct-domain passwdcorrect-domain is the name of the other domain that you are setting up service for, andpasswd is the make target. This command pushes the passwd map to the intendeddomain, instead of the domain to which the master belongs.Starting and Stopping NIS Service on theMaster ServerNow that the master maps are created, you can start the NIS daemons on the masterserver and begin service. When you enable the NIS service, ypserv and ypbind starton the server. When a client requests information from the server, ypserv is thedaemon that answers information requests from clients after looking them up in theNIS maps. The ypserv and ypbind daemons are administered as a unit.Chapter 5 • Setting Up and Configuring NIS Service 87