Share iTunes library on NAS with multiple users

Howdy,
I have been playing a while to get itunes library share working. I know it is supposed to be done with home sharing. But I don't like it.
My library is on a NAS (synology). I connect with NFS mount. There are 2 users on my mac.
When I open en close the libary from user account 1, then the permissions and owner rights of the library file are changed by iTunes. They are changed to 501 (user) and 20 (group). Permissions are only r/w to this user/group.
This prevents the other user 2 (502) to open the libary file. Since only user 1 (501) has permissions.
Now there are a lot of topics to be found on the internet, that suggest to make the folder of the library 'shared'. This will fix the problem. The thing is: the folder is on a NAS and the mac os options for setting it to a 'shared folder' doesn't work. Also the option to make a ACL see:https://discussions.apple.com/docs/DOC-1691 doesn't work for a network folder (on the NAS).
So I'm kinda stuck. Is there a solution to this?
Thanks!

It sounds to me like your NAS is going to sleep.
From what I have read on this forum using iTunes with NAS has all kinds of issues.

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Jaap74 wrote:
Two things that are not clear
- I think it is not possible to have iTunes running at the same time on two Macs in the discribed setting.
- I think over a wireless connection, it will reduce speed.
Anyone with experience?
I think what you mean is that it's not possible for two Macs to access the same iTunes library (ie. the same collection of media files) at the same time. From my research, this seems to be the case, and that's not my issue.
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And that is when my particular problem arises: when we launch iTunes, we are often asked to choose a Library (a series of navigations that my partner isn't entirely comfortable with), and occasionally the Data folder on the TimeCapsule is unavailable.
As for the wireless connection to our library, this has not so far proven to be an issue. Depending on what other activities are going on at the time (ie. TimeMachine backups or background Internet activity, i presume), i have only rarely experienced brief interruptions in music streaming from the TimeCapsule (<1 second). In fact, last night, we watched a movie on the laptop, with the file streaming from the TimeCapsule, and it only hesitated a few times, and again for less than a second.
Message was edited by: William Mclaughlin

Sharing iTunes on one machine with multiple users... problems...

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This is a user to user support forum. Your fellow users can offer solutions or workarounds based on their experience with the application. If you think it should work differently drop a line to iTunes Feedback.
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tt2

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Greetings,
I have been troubleshooting a problem sharing iTunes on a single computer with multiple users that cropped up a few weeks ago and have not had very good luck.
Several months ago I successfully set up my wife’s G4 Laptop (PowerPC processor) so that we could share iTunes on that computer. I had just gotten her an “My Book” external hard drive (Western Digital). The iTunes Library will go on this new unit because the internal drive was running out of room. I successfully set the privileges, moved the entire library onto a “Share” directory and everything worked fine.
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Was your wife logged into the libray at the time you tried to log in? I have had a similar problem and it was because another user was logged into the library when I attempted to. I got the permission denied banner.

Share iTunes library on NAS with multiple users

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