Draft:Setuid Bit

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Setuid Bit[edit | edit source]

The Setuid Bit (short for "set user identity") within the Ampmesh context refers to a specific Unix and Linux access rights flag that **allows users to run an executable with the file system permissions of the executable's owner**. It can also change behavior in directories.

Application within Ampmesh:

   *   The concept was raised in relation to Elysium, a machine described as having "accumulated many bits unique to it over the years".
   *   A user (ratsby) requested that Ampdot implement a **"safe-shutdown script with the [setuid bit] set"**.
   *   The purpose of this script would be to allow users to **"shut it down without you being reachable"** or if it needs to be shut down faster than its UPS can drain to a shutdown threshold.
   *   This implies a need for a mechanism to grant specific, elevated permissions for a particular action (safe shutdown) without requiring full administrative access or a password directly. Ampdot confirmed this was a "good idea".

In essence, the Setuid Bit is seen as a tool to **delegate specific administrative privileges for critical operations on systems like Elysium, enhancing operational flexibility and safety**.