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AIX and Linux Interoperabilty by IBM Redbooks, Abhijit Chavan, International Business

By IBM Redbooks, Abhijit Chavan, International Business Machines Corporation

This IBM Redbook discusses interoperability when it comes to UNIX to UNIX move platform information sharing and user/system administration. This redbook additionally demonstrates the similarities and ameliorations among the AIX and Linux working platforms.

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The object class definitions may be intimidating at first sight, but we refer you to the MAY and MUST sentences, which contain a list of optional and mandatory attributes. The uid and userPassword attributes are used for user authentication. In Example 2-2 on page 19, we show a typical user entry in the LDIF format. Incidentally, even though we write object names in mixed case, it does not matter, not even in attribute values, which obviously has some effect on authentication (note the user name given): $ telnet r-linux Trying...

Finally, access control is very important in most applications. The default access in OpenLDAP slapd is read. That is definitely not appropriate for user passwords, so we allow only the authentication operation on the userPassword attribute. The self keyword denotes the entry itself. In our example, that means that the user who has already authenticated himself is authorized to change the password. Starting and stopping the server The openldap-servers RPM package includes a standard system V startup script.

2, “The OpenLDAP directory server” on page 26. 0 includes a set of utilities in the /usr/share/openldap/migration directory. ph script and set the $DEFAULT_BASE variable to the DN suffix. ldif files and remove all system users and groups. The utilities support migrating all standard NIS maps, but we migrate only the user and group databases. The procedure is shown in Example 2-11. The slapadd command creates the database files and you must make sure that the slapd server is not running before using it.

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