Sun Certified System Administrator for Solaris 10 Study Guide Exams 310-XXX & 310-XXX

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The DNS is used to resolve IP domain names to IP addresses for any machine on the Internet.

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The NIS and NIS+ naming services are used to centralize the management of the network (LAN) information. NIS+ has a hierarchical namespace and offers additional features such as authentication, whereas NIS has a flat namespace.

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LDAP unifies the naming service and the directory service and is more appropriate in a read-intensive naming environment.

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The nsswitch.conf file is used to coordinate the use of different naming services on your system.

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In NIS, network information is stored in files called maps, which are in the ndbm format.

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The maps are created and updated only on a master server, from which the information propagates to the slave servers.

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The ypinit command is used to set up the master server, the slave servers, and the clients for NIS. It also builds a fresh set of NIS maps from the source files cited in the Makefile.

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You can set up an NIS client by using the ypinit -c command.

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The DNS configuration information used by the DNS client exists in the resolv.conf file.

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You can set up an LDAP client by using the ldapclient command.

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The naming service cache daemon is nscd, which is automatically started when the system is booted.

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You can use the getent command to get a list of entries from the administrative databases, such as /etc/nsswitch.conf, /etc/passwd, and /etc/inet/hosts.