Creating groups and changing group membership in Mac OS X

Wed, 23 May 2007 00:00:00 +0000

I want to store some files on a Macintosh (OS 10.2). They should be in the Public folder, but only accessible (= only readable) by certain people. Thus I would like to create a new group that has accession rights to these files. Strangely, the group command doesn’t exist on MacOS X (chgrp does exist though). I downloaded the User Manager application. But the version for OS 10.2 was not really easy to use. Thus I used the NetInfo Manager. I duplicated an existing group, changed its name to “gck” and id number and added two users (if you have more than one entry, you have to add them in brackets and comma-seperated). Then I created a directory in my Public folder and changed its group to “gck”. Permissions for this directory are drwxr-x—. The files inside this directory also belong all to the “gck” group and have -rwxr—– permissions.

Mounting of vfat partitions and accession privilege management mapping (fstab, vfat, umask, fmask, dmask, users)

Wed, 04 Apr 2007 00:00:00 +0000

Old Windows (i.e. fat partitions) are no problem for Linux. advanced installers like Yast automatically recognize them and make them available under Linux. However, sometimes the accession privileges are not as you need them. In order to make a fat partition (un)mountable to all users and make every file/directory +rwx for everybody, the fstab needs to look like this: /dev/hda2 /media/windows/E vfat defaults,users,uid=500,gid=100,umask=000 0 0 Additionally Linux owner 500 and group 100 mapped as an for all files. You can also set privileges separately for files (fmask) and directories (dmask). For umask you need to give the inverse octal, meaning: 000 means all privileges and 777 means no privileges.

Users on Michael’s Domain

Creating groups and changing group membership in Mac OS X

Mounting of vfat partitions and accession privilege management mapping (fstab, vfat, umask, fmask, dmask, users)