When did user accounts using UIDs above 1000 become normal? And why?

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We have a really old NIS domain which is mapping some user accounts to UIDs less than 1000. I'm wondering



  • when did using UIDs greater than or equal to 1000 for human users become 'standard',

  • why did it become a convention? Are there any practical implications or reasons for this? (i.e. anything similar like the 'convention' of trusting ports below 1000)









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  • 4





    Related: unix.stackexchange.com/a/359006/173368

    – Haxiel
    Feb 26 at 13:20















3















We have a really old NIS domain which is mapping some user accounts to UIDs less than 1000. I'm wondering



  • when did using UIDs greater than or equal to 1000 for human users become 'standard',

  • why did it become a convention? Are there any practical implications or reasons for this? (i.e. anything similar like the 'convention' of trusting ports below 1000)









share|improve this question



















  • 4





    Related: unix.stackexchange.com/a/359006/173368

    – Haxiel
    Feb 26 at 13:20













3












3








3








We have a really old NIS domain which is mapping some user accounts to UIDs less than 1000. I'm wondering



  • when did using UIDs greater than or equal to 1000 for human users become 'standard',

  • why did it become a convention? Are there any practical implications or reasons for this? (i.e. anything similar like the 'convention' of trusting ports below 1000)









share|improve this question
















We have a really old NIS domain which is mapping some user accounts to UIDs less than 1000. I'm wondering



  • when did using UIDs greater than or equal to 1000 for human users become 'standard',

  • why did it become a convention? Are there any practical implications or reasons for this? (i.e. anything similar like the 'convention' of trusting ports below 1000)






nis uid conventions






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edited Feb 26 at 21:17







Samuel Harmer

















asked Feb 26 at 13:10









Samuel HarmerSamuel Harmer

1939




1939







  • 4





    Related: unix.stackexchange.com/a/359006/173368

    – Haxiel
    Feb 26 at 13:20












  • 4





    Related: unix.stackexchange.com/a/359006/173368

    – Haxiel
    Feb 26 at 13:20







4




4





Related: unix.stackexchange.com/a/359006/173368

– Haxiel
Feb 26 at 13:20





Related: unix.stackexchange.com/a/359006/173368

– Haxiel
Feb 26 at 13:20










1 Answer
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According the UNIX and Linux System Administration Handbook (5th Edition) the idea behind starting UIDs at 1000 is to provide plenty of room for nonhuman users that might get added in the future.






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    1 Answer
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    According the UNIX and Linux System Administration Handbook (5th Edition) the idea behind starting UIDs at 1000 is to provide plenty of room for nonhuman users that might get added in the future.






    share|improve this answer



























      2














      According the UNIX and Linux System Administration Handbook (5th Edition) the idea behind starting UIDs at 1000 is to provide plenty of room for nonhuman users that might get added in the future.






      share|improve this answer

























        2












        2








        2







        According the UNIX and Linux System Administration Handbook (5th Edition) the idea behind starting UIDs at 1000 is to provide plenty of room for nonhuman users that might get added in the future.






        share|improve this answer













        According the UNIX and Linux System Administration Handbook (5th Edition) the idea behind starting UIDs at 1000 is to provide plenty of room for nonhuman users that might get added in the future.







        share|improve this answer












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        share|improve this answer










        answered Feb 26 at 22:18









        heifloheiflo

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