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21.nis.ans.even.RH4

Practical Guide to Fedora and Red Hat Enterprise Linux, A (4th Edition)

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1 Answers to Even-numbered Exercises 1. What ilities? 2. How would you prevent NIS from exporting the root user and other system users to clients? Ensure that these users have UIDs and GIDs lower than the MINUID and MINGID specified in /var/yp/Makefile . 3. How wsystems? 4. Why does the /etc/passwd file need two NIS maps? Password information is looked up two ways: by UID and by username. Because dbm files, which implement NIS maps, have a single index, you need two dbm files, or maps, to enable the two kinds of lookups on NIS user information. 5. Hose system? 6. What is the basic unit of information in an LDAP directory? What is the structure of an attribute? An entry is the basic unit of information in an LDAP directory. Each attribute has a name (an attribute type or description) and one or
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Unformatted text preview: more values. 7. Hon a large network? 8. How can you find out if the working directory is the home directory of an NIS user? $ ypcat passwd | grep $(pwd) 9. What at with NFS? 10. Suggest a way to implement NIS maps so they can be indexed on more than one field. Modify the NIS server so that it uses an SQL database as a back end, allowing searches by any field. 11. Wheoptional? 21 2 12. How would you determine the longer name for the l (lowercase “l”) LDAP object class? Give the following command: $ grep \'l\' /etc/openldap/schema/*.ldif /etc/openldap/schema/core.ldif:olcAttributeTypes: ( 2.5.4.7 NAME ( 'l' 'localityName' )...
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