On יום שלישי, 19 ביולי 2016 15:23:25 IDT Matthew Miller wrote: > ... > I remember when this came up before but can't find it now. I think it > was changed to 99 when UIDs went to 32 bit and it suddenly started > being 65535 on some systems and 4294967295 on others. * I was trying to > figure out why 99 was eventually chosen, but can't find it now.
I believe the uid 99 come from trying not to overlap regular users. Back then (end of 90's), regular users uid's were: * On old RedHat Linux >= 500 * On some other Linux systems >= 1000 * On many legacy Unices >= 100 (except on Irix >= 1000) It was very common to have NFS mounted /home across all servers (with different *NIX vendors/versions). So '99' was the "last" uid that was assured not to collide with uid's of regular users on NFS. -- Oron Peled Voice: +972-4-8228492 o...@actcom.co.il http://users.actcom.co.il/~oron No, You Can't Have My Rights, I'm Still Using Them -- devel mailing list devel@lists.fedoraproject.org https://lists.fedoraproject.org/admin/lists/devel@lists.fedoraproject.org
