Controlling System Access

Controlling access to systems involves using passwords and appropriate file permissions. To control access, all logins must have passwords, and those passwords must be changed frequently. Password aging is a system parameter set by the system administrator who requires users to change their passwords after a certain number of days. Password aging lets you force users to change their passwords periodically or prevent users from changing their passwords before a specified interval. Set an expiration date for a user account to prevent an intruder from gaining undetected access to the system through an old and inactive account. For a high level of security, require users to change their passwords every six weeks. Changing ...

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