sudo and su in linux

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why "su" and "sudo" commands need to be Set-UID programs. What will happen if they are not?

Posted 10-Nov-14 9:53am

iman DA

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Richard MacCutchan 11-Nov-14 4:13am

They will not work. You can read the documentation for both commands in the man pages.

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Kornfeld Eliyahu Peter · Answer 1 · 2014-11-10T09:58:00

Solution 1

It's a matter of security. There are some commands that will not execute without root-level access. Some of those commands can be dangerous so Linux not allow you to execute them by mistake...

Posted 10-Nov-14 9:58am

Kornfeld Eliyahu Peter

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Sergey Alexandrovich Kryukov 10-Nov-14 17:34pm

What are those "commands"? They are programs, applications, scripts. Anything may or may not require root access.
This is similar to "Run as Administrator" in Windows Vista, 7 and up.
—SA