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

Note – In order to use LDAP naming services, you must also properly configure allLDAP client machines, in addition to modifying the nsswitch.conf. SeeChapter 12 for more information.■■■NIS+ template file. The nsswitch.nisplus configuration file specifies NIS+ as theprimary source for all information except passwd, group, automount, andaliases. For those four files, the primary source is local /etc files. The secondarysource is an NIS+ table. The [NOTFOUND=return] search criterion instructs theswitch to stop searching the NIS+ tables if the switch gets a “No such entry”message. The switch searches through local files only if the NIS+ server isunavailable.NIS template file. The nsswitch.nis configuration file is almost identical to theNIS+ configuration file, except that NIS file specifies NIS maps in place of NIS+tables. Because the search order for passwd and group is files nis, you don’tneed to place the + entry in the /etc/passwd and /etc/group files.Files template file. The nsswitch.files configuration file specifies local /etc filesas the only source of information for the machine. There is no “files” source fornetgroup, so the client does not use that entry in the switch file.Copy the template file that most closely meets your requirements to thensswitch.conf configuration file and then modify the file as needed.For example, to use the LDAP template file, you would type the following command.mymachine# cp /etc/nsswitch.ldap /etc/nsswitch.confThe Default Switch Template FilesThe following four switch files are supplied with the Solaris product.EXAMPLE 2–1 NIS+ Switch File Template: nsswitch.nisplus### /etc/nsswitch.nisplus:### An example file that could be copied over to /etc/nsswitch.conf;# it uses NIS+ (NIS Version 3) in conjunction with files.## "hosts:" and "services:" in this file are used only if the# /etc/netconfig file has a "-" for nametoaddr_libs of "inet"# transports.# the following two lines obviate the "+" entry in /etc/passwd# and /etc/group.Chapter 2 • The Name Service Switch (Overview) 37