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Full Discussion: negative UID/GID?!! I can see 'em but what the hell do they mean?!
Top Forums UNIX for Dummies Questions & Answers negative UID/GID?!! I can see 'em but what the hell do they mean?! Post 6554 by PxT on Thursday 6th of September 2001 06:47:33 PM
Old 09-06-2001
Some versions of Unix allow negative UID's. For example, HP-UX assigns -2 to the nobody user. On HP-UX -2 is the smallest allowed value. Not sure about other systems, although Linux does not appear to use negative UIDs. Check the man page for details, but in general there is no consistent special significance to any UID (except 0).
 

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LEARN ABOUT SUSE

vfs_default_quota

VFS_DEFAULT_QUOTA(8)					    System Administration tools 				      VFS_DEFAULT_QUOTA(8)

NAME

       vfs_default_quota - store default quota records for Windows clients

SYNOPSIS

       vfs objects = default_quota

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       Many common quota implementations only store quotas for users and groups, but do not store a default quota. The vfs_default_quota module
       allows Samba to store default quota values which can be examined using the Windows Explorer interface.

       By default, Samba returns NO_LIMIT the default quota and refuses to update them.  vfs_default_quota maps the default quota to the quota
       record of a user. By default the root user is taken because quota limits for root are typically not enforced.

       This module is stackable.

OPTIONS

       default_quota:uid = UID
	   UID specifies the user ID of the quota record where the default user quota values are stored.

       default_quota:gid = GID
	   GID specifies the group ID of the quota record where the default group quota values are stored.

       default_quota:uid nolimit = BOOL
	   If this parameter is True, then the user whose quota record is storing the default user quota will be reported as having a quota of
	   NO_LIMIT. Otherwise, the stored values will be reported.

       default_quota:gid nolimit = BOOL
	   If this parameter is True, then the group whose quota record is storing the default group quota will be reported as having a quota of
	   NO_LIMIT. Otherwise, the stored values will be reported.

EXAMPLES

       Store the default quota record in the quota record for the user with ID 65535 and report that user as having no quota limits:

		   [global]
		vfs objects = default_quota
		default_quota:uid = 65535
		default_quota:uid nolimit = yes

VERSION

       This man page is correct for version 3.0.25 of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

Samba 3.5							    06/18/2010						      VFS_DEFAULT_QUOTA(8)
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