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Note that 65535 it not the largest possible value for UID/GID, but

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highest recommended value.

Discussed on:	-doc
PR:		docs/61625
This commit is contained in:
Simon L. B. Nielsen 2004-01-20 16:15:19 +00:00
parent 2c1066716d
commit a74ef0f25c
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=19756
1 changed files with 7 additions and 2 deletions

9
en_US.ISO8859-1/books/handbook/users/chapter.sgml
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@ -113,7 +113,12 @@
<term>User ID (UID)</term>
<listitem>
<para>The UID is a number from 0 to 65535 used to uniquely identify
<para>The UID is a number, traditionally from 0 to 65535<footnote id="users-largeuidgid">
<para>It is possible to use UID/GIDs as large as
4294967295, but such IDs can cause serious problems
with software that makes assumptions about the values
of IDs.</para>
</footnote>, used to uniquely identify
the user to the system. Internally, FreeBSD uses the UID to
identify users&mdash;any FreeBSD commands that allow you to
specify a user name will convert it to the UID before working with
@ -128,7 +133,7 @@
<term>Group ID (GID)</term>
<listitem>
<para>The GID is a number from 0 to 65535 used to uniquely identify
<para>The GID is a number, traditionally from 0 to 65535<footnoteref linkend="users-largeuidgid">, used to uniquely identify
the primary group that the user belongs to. Groups are a
mechanism for controlling access to resources based on a user's
GID rather than their UID. This can significantly reduce the size