bstewart@bnlux1.bnl.gov (Bruce Stewart) (05/09/91)
The System Administrator's Guide states that a user ID number must be between 0 and 60,000; is this for real? Most systems have a maximum of 2^16-1 = 65535 which is understandable. If 60,000 is for real it will cause some serious grief to our computing services division which is trying to establish uniform user IDs for all our systems.
aspgpas@cidsv01.cid.aes.doe.CA (Peter Silva) (05/10/91)
In article <1991May8.202912.25142@bnlux1.bnl.gov>, bstewart@bnlux1.bnl.gov (Bruce Stewart) writes: |> |> The System Administrator's Guide states that a user ID number must |> be between 0 and 60,000; is this for real? Most systems have a |> maximum of 2^16-1 = 65535 which is understandable. If 60,000 |> is for real it will cause some serious grief to our computing |> services division which is trying to establish uniform user |> IDs for all our systems. Wait! There's more! EP/IX (like MIPS/OS, but value added by CDC) says all uids are < 50000. And EP/IX, IRIX, and SunOS all disagree on who nobody is uid and gid = 14, 30001, and 65534 respectively (this doesn't matter unless you use NFS, which you probably do! ) On SunOS, 65534 used to be -2, but POSIX says uids are unsigned, so SUNOS changed the interpretation of the same bit pattern. We have a mix of SunOS 4.0.x and 4.1.x (not to mention PC-NFS) running, and we are constantly bombarded by messages from the accounting system complaining about this. I prefer 14 myself, but try convincing other OS's about this wisdom... Any other pearls of inter-operability out there ? -- Peter Silva OS Support psilva@cid.aes.doe.ca Dorval Computing Centre (514) 421-4692 Atmospheric Environment Service