Maximum UID

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* From ''Solaris 10 System Administration Guide: Basic Administration''[http://docs.sun.com/app/docs/doc/817-1985/userconcept-36940?a=view]:
* From ''Solaris 10 System Administration Guide: Basic Administration''[http://docs.sun.com/app/docs/doc/817-1985/userconcept-36940?a=view]:
"However, UIDs and GIDs over 60000 do not have full functionality and are incompatible with many Solaris features. So, avoid using UIDs or GIDs over 60000."
"However, UIDs and GIDs over 60000 do not have full functionality and are incompatible with many Solaris features. So, avoid using UIDs or GIDs over 60000."
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* [http://osdir.com/ml/os.solaris.managers.summaries/2003-08/msg00084.html SUMMARY: Maximum UID Number for Solaris 6/7/8]
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== Linux ==
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* Starting with kernel 2.4, Linux supports 32-bit UIDs and GIDs.

Current revision

Solaris

  • From Solaris 2.5.1 Server Release Notes[1]:

Previous Solaris 2.x software releases used 32-bit data types to contain the user IDs (UIDs) and group IDs (GIDs), but UIDs and GIDs were constrained to a maximum useful value of 60000. In the Solaris 2.5.1 release, the limit on UID and GID values has been raised to the maximum value of a signed integer, or 2147483647."

...

"Caution - UIDs and GIDs over 60000 do not have full functionality and are incompatible with many Solaris features, so avoid using UIDs or GIDs over 60000. See Table 2-1 for a complete list of interoperability issues with Solaris 2.x products and commands."[2]

  • From Solaris 10 System Administration Guide: Basic Administration[3]:

"However, UIDs and GIDs over 60000 do not have full functionality and are incompatible with many Solaris features. So, avoid using UIDs or GIDs over 60000."

Linux

  • Starting with kernel 2.4, Linux supports 32-bit UIDs and GIDs.
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