the meaning of allocations in this range can differ between NFS client machines.Files stored on the departmental file space should avoid using any numeric UID or GID value below 1100 or above 9999.if necessary add some prefix or suffix (e.g., cl- or -cl).Symantec list of Standard UNIX operating system users and groups.FreeBSD system user names and system group names.compare against existing OS allocations, e.g.avoid common software/service names (mysql, apache, www, etc.).Names of users and groups should be chosen to avoid likely collisions with operating-system allocations.Personal groups have the eponymous user as their sole member.For each user name and numeric UID, the corresponding identical group name and numeric GID is reserved for the respective personal group. ![]() with the Unix "id" command or in administrative tools and tables. This is mostly for the benefit of users who see lists of UIDs and GIDs sorted by numeric value, e.g.UID and GID allocations should be grouped together by type (regular users, pseudo-users, etc.).4-digit UIDs are going to last at least until the year 2050 at current growth rates (~150 new entries every year, e.g.4-digit just looks neater in "id", etc.Unix tools typically display UID/GID values as decimal numbers and therefore the structure of the number space should be easy to recognize in decimal. ![]()
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