AIX 5L System Management Concepts: Operating System and

This ebook comprises info for realizing the projects that you just practice as a procedure administrator, in addition to the instruments supplied for approach administration. Use this ebook besides AIX 5L model 5.1 method administration suggestions: working process and units.

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Consider trusting software if, for example: v You have fully tested the program. v You have examined the program’s code. v The program is from a trusted source that has tested or examined the program. The system administrator must determine how much trust can be given to a particular program. This determination includes considering the value of the information resources on the system in deciding how much trust is required for a program to be installed with privilege. cfg file. The program attribute lists an associated program that can check additional status.

Then the /tmp/su program mails the root password to the user and calls the real su command before exiting. In this scenario, any root user who used the su command would give away the root password and not even be aware of it. This is just one of many scenarios for gaining confidential information by altering PATH values. However, following a few simple steps will prevent any problems with the PATH environment variable for system administrators and users: v When in doubt, specify full path names.

Only root users, members of group net, and user john can execute this command. The following figure shows how the extended ACL is associated with the command instead of with the data files themselves. 22 Operating System and Devices Figure 1. Extended ACL Controls. This illustration shows users 1-6 grouped with the extended ACLs group net permit r-x. Another user, John, is designated with the extended ACLs user john permit r-x. Through the changenet command, these users are provided access to network data files depending on their extended ACLs.

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