sudo: Running a Command with root PrivilegesDec 27, 2008, 12:01 (0 Talkback[s])
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"Some users question whether sudo is less secure than su. Because both rely on passwords, they share the same strengths and weaknesses. If the password is compromised, the system is compromised. However, if the password of a user who is allowed by sudo to do one task is compromised, the entire system may not be at risk. Thus, if used properly, the finer granularity of sudo's permissions structure can make it a more secure tool than su. Also, when sudo is used to invoke a single command, it is less likely that a user will be tempted to keep working with root privileges than if the user opens a root shell with su."
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