Problem sharing remote tooltalk session by multiple users

I need advice on how to create a remote tooltalk session and have it shared by multiple users. Currently, I have a few remote ttsessions, but I'm running into with TTauthority to let others share those same sessions. Is there any way to have a common tooltalk session which would support a dynamic number of users?

I'm running into issues with Tooltalk's security
mechanism ttauth. I need help to setup up a main
session (one MIT Magic Cookie) which would be shared
by mulitple users. The problems are occuring with new
MIT Magic Cookies being generated per new user login.
I have tried the extract and merge approach to get
other users' information, but this has proved to be
an inefficient way for applications to communicate
with each other. Please help!

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Sharing JVM applet cache among multiple users

Our browser plugin clients run in a Citrix environment where Windows Terminal Services servers host the client sessions for multiple users and the users only have a thin client hardware device at their desks. We've discovered that as a consequence of optimizing certain aspects of the Citrix environment a user's JVM cache is remote to the server hosting his/her browser session, and that the remote caching is a performance bottleneck.
Turning applet caching off improves performance considerably, but we'd like to get the cache directed locally to the server hosting the browser session and turn caching back on. But since hundreds of users times tens of servers in the "Citrix farm" adds up to a lot of cache disk space, we're wondering about users sharing a JVM cache. This already happens when one runs multiple browser/plugin sessions locally on a regular workstation. But what about fifty users' separate plugins sharing a single applet cache? It appears from file timestamps that jars'/classes' idx files in a cache are updated when a file is loaded from the cache. What if multiple browser plugins were trying to do this concurrently? Is there a risk of locking, or a data integrity exposure? Or are those idx updates insignificant since they don't affect the last modified date or the sticky cache version number? (Most apps use a 1_5_0_2 JRE, but some apps require a 1.4 plugin.)
Thanks,
Brian

This sounds very similar to a problem that's occuring for us at the moment. Did you ever find some solution to this problem?
Regards,
Jon.

Sharing JVM applet cache among multiple users (crosspost)

Does anyone have experience sharing a single JVM applet cache among multiple users?
(This is a crosspost of http://forum.java.sun.com/thread.jspa?threadID=5157018. I know crossposting is frowned on, but it went a week without replies in the plug-in forum.)
Our browser plugin clients run in a Citrix environment where Windows Terminal Services servers host the client sessions for multiple users and the users only have a thin client hardware device at their desks. We've discovered that as a consequence of optimizing certain aspects of the Citrix environment a user's JVM cache is remote to the server hosting his/her browser session, and that the remote caching is a performance bottleneck.
Turning applet caching off improves performance considerably, but we'd like to get the cache directed locally to the server hosting the browser session and turn caching back on. But since hundreds of users times tens of servers in the "Citrix farm" adds up to a lot of cache disk space, we're wondering about users sharing a JVM cache. This already happens when one runs multiple browser/plugin sessions locally on a regular workstation. But what about fifty users' separate plugins sharing a single applet cache? It appears from file timestamps that jars'/classes' idx files in a cache are updated when a file is loaded from the cache. What if multiple browser plugins were trying to do this concurrently? Is there a risk of locking, or a data integrity exposure? Or are those idx updates insignificant since they don't affect the last modified date or the sticky cache version number? (Most apps use a 1_5_0_2 JRE, but some apps require a 1.4 plugin.)
Thanks,
Brian

This sounds very similar to a problem that's occuring for us at the moment. Did you ever find some solution to this problem?
Regards,
Jon.

Can't setup Tooltalk session for mulitple users

I want to create a single tooltalk session that can be shared by a dynamic number of users. How would I set this up? What is difference between xauth and ttauth? I tried to join remote sessions and create/send messages using ttsnoop, but I get TT_ERR_SESSION. The /.TTauthority is in our home directory and is shared by all users. However, we cannot see each others sessions. I've read a lot of documentation out there with no solution nor examples for multiple users, so please help!

I don't think the latest Sun Studio tools use tooltalk anymore.
I think there is a CDE development environment for Linux,
perhaps that software has a support forum with people who know
more about tooltalk. I don't know where else to ask. If there
are "desktop" related forums on opensolaris.org, you might find
people there who know more.
--chris

Any improvements in sharing an iPhoto Library between multiple users?

It is possible and Apple Approved to share an iPhoto Library between multiple users, but the Library must be stored on a drive or disk image that ignores permissions:
http://tech.kateva.org/2008/10/apple-supports-multi-user-iphoto.html
This doesn't work for me. Has Apple changed anything with iLife '09 to make it easier to share a Library? For example, have they changed from the prior Package format?
Message was edited by: jfaughnan

Alternatives to a trip to the Terminal:
If you want the other user to be able to see the pics, but not add to, change or alter your library, then enable Sharing in your iPhoto (Preferences -> Sharing), leave iPhoto running and use Fast User Switching to open the other account. In that account, enable 'Look For Shared Libraries'. Your Library will appear in the other source pane.
Any user can drag a pic from the Shared Library to their own in the iPhoto Window.
Remember iPhoto must be running in both accounts for this to work.
If you want the other user to have the same access to the library as you: to be able to add, edit, organise, keyword etc. The problem here is that OS X works very hard to keep your data safe and secure from the other users. You're trying to beat what's built in to the system. So, to beat the system
Quit iPhoto in both accounts
Move the iPhoto Library Folder to an external HD set to ignore permissions. You could also use a Disk Image or even partition your Hard Disk.
In each account in turn: Hold down the option (or alt) key and launch iPhoto. From the resulting dialogue, select 'Choose Library' and navigate to the new library location. From that point on, this will be the default library location. Both accounts will have full access to the library, in fact, both accounts will 'own' it.
However, there is a catch with this system and it is a significant one. iPhoto is not a multi-user app., it does not have the code to negotiate two users simultaneously writing to the database, and trying will cause db corruption. So only one user at a time, and back up, back up back up.
Lastly: This method seems a little clunky at first, but works very well. Most importantly, it uses the System to do the job for you.
Create a new Account on your Mac, call it Media. Create an iPhoto Library there. (BTW: This will work for iTunes too.)
Enable Sharing on the Library:(Preferences -> Sharing), leave iPhoto running and use Fast User Switching to open the other accounts. In those accounts, enable 'Look For Shared Libraries'. The Library will appear in the other source pane.
This means that both users will be able to see the pics. If you want to use a pic then simply drag it from the shared Library to your own in the iPhoto Window. This means that each user can have their own edits.
If you want to add photos to the Library: Log into the Media account for that purpose.
To make it all seamless: Set your Mac to log into the Media Account automatically. Set iPhoto to launch on log-in. Then switch to your own account using Fast User Switching.
Net result: a Library that's permanently available to all users but also protected. Each user can have their own versions of the pics if they want.
No partitioning, no permissions issues. Uses no extra disk space. What's not to like?
Regards
TD

Sharing one iphoto library between multiple user accounts

I hav an extensive photo library and would like to share this across multiple users on the one computer. Am I able to do this without having to move the library to an external hard drive?

What you mean by 'share'.
If you want the other user to be able to see the pics, but not add to, change or alter your library, then enable Sharing in your iPhoto (Preferences -> Sharing), leave iPhoto running and use Fast User Switching to open the other account. In that account, enable 'Look For Shared Libraries'. Your Library will appear in the other source pane.
Any user can drag a pic from the Shared Library to their own in the iPhoto Window.
Remember iPhoto must be running in both accounts for this to work.
If you want the other user to have the same access to the library as you: to be able to add, edit, organise, keyword etc. The problem here is that OS X works very hard to keep your data safe and secure from the other users. You're trying to beat what's built in to the system. So, to beat the system
Quit iPhoto in both accounts
Move the iPhoto Library Folder to an external HD set to ignore permissions. You could also use a Disk Image or even partition your Hard Disk.
In each account in turn: Hold down the option (or alt) key and launch iPhoto. From the resulting dialogue, select 'Choose Library' and navigate to the new library location. From that point on, this will be the default library location. Both accounts will have full access to the library, in fact, both accounts will 'own' it.
However, there is a catch with this system and it is a significant one. iPhoto is not a multi-user app., it does not have the code to negotiate two users simultaneously writing to the database, and trying will cause db corruption. So only one user at a time, and back up, back up back up.
Lastly: This method seems a little clunky at first, but works very well. Most importantly, it uses the System to do the job for you.
Create a new Account on your Mac, call it Media. Create an iPhoto Library there. (BTW: This will work for iTunes too.)
Enable Sharing on the Library:(Preferences -> Sharing), leave iPhoto running and use Fast User Switching to open the other accounts. In those accounts, enable 'Look For Shared Libraries'. The Library will appear in the other source pane.
This means that both users will be able to see the pics. If you want to use a pic then simply drag it from the shared Library to your own in the iPhoto Window. This means that each user can have their own edits.
If you want to add photos to the Library: Log into the Media account for that purpose.
To make it all seamless: Set your Mac to log into the Media Account automatically. Set iPhoto to launch on log-in. Then switch to your own account using Fast User Switching.
Net result: a Library that's permanently available to all users but also protected. Each user can have their own versions of the pics if they want.
No partitioning, no permissions issues. Uses no extra disk space. What's not to like?
Regards
TD

Home sharing to Apple TV with multiple users on same computer

I have two different users on the same computer. To facilitate sharing their music and movies to eachother, they are each using Home Sharing with the same Apple ID. As long as both users remain logged in, this works with no problem. Except for Apple TV. The Apple TV can see each library, so they both show up in the list under Computers, but only one is accessible. It's either the first one that broadcast itself, or the first one that Apple TV connected to, I'm not sure which. But, once that's established, the second library will remain in the Computers list, but any attempt to connect to the library will fail. It appears there is a limitation that Apple TV can only connect to a single library per physical computer, even though it can tell there are multiple libraries there.
Does anyone have any idea how to work around this without consolidating the libraries? Being able to connect to multiple libraries is the goal, not consoludating them.

I don't have that set up anymore, but used to. I had no problems sharing from either library. Of course it may have changed since I used it, but wouldn't see why.

Sharing a single session among multiple portlets for single application (e.g. wInsight)

Does anyone know the best practices way for sharing a single Session for an application (running on a single Porlet server) among multiple portlets on a page?
For example, the application wInsight uses 3 frames (navigation, search results - tabular, search results - chart) which need to communicate via the application's session scope. It is not just that we do not want for a single user to be running multiple sessions, but they really do share variable parameters this way.
So far I can only think of trying to build a one true portlet and two empty containers on page load. I would use the portlet to establish the session with the Portlet server and then transfer the session information to the other two empty containers to instantiate their respective portlets. I haven't tried this yet, but will do so soon...
Any help and feedback would be greatly appreciated.

Karen,
You can easiliy create several portlets out of a Struts application. For detailed instructions, refer to the Struts section of the Portal Developer's Guide.
Good luck,
Peter

Sharing an iTunes Library across multiple user account and a network.

Sharing an iTunes Music Library across multiple user accounts.
Hello Everybody!
Firstly, this was designed to be run in Mac OS X 10.4 Tiger. It will not work with earlier versions of Mac OS X! Sorry.
Here's a handy tip for keeping your hard drive neat and tidy, it also saves space, what in effect will be done is an iTunes music library will be shared amongst multiple users on the same machine. There are advantages and disadvantages to using this method.
• Firstly I think it might be worthwhile to state the advantages and disadvantages to using this approach.
The advantages include:
- Space will be saved, as no duplicate files will occur.
- The administrator will be able to have complete control over the content of the iTunes library, this may be useful for restricting the content of the Library; particularly for example if computer is being used at and education institution, business or any other sort of institution where things such as explicit content would be less favorable.
- The machine will not be slowed by the fact that every user has lots of files.
The disadvantages to this system include.
- The fact that the account storing the music will have to be logged in, and iTunes will have to be active in that account.
- If the account housing the music is not active then nobody can use the iTunes library.
- There is a certain degree of risk present when an administrator account must be continually active.
- Fast User Switching must be enabled.
Overview:
A central account controls all music on the machine/network, this is achieved by storing iTunes files in a public location as opposed to in the user's directory. In effect the system will give all users across the machine/network access to the same music/files without the possibility of files 'doubling up' because two different users like the same types of music. This approach saves valuable disk space in this regard and may therefore prove to be useful in some situations.
This is a hearty process to undertake, so only follow this tutorial if you're willing to go all the way to the end of it.
Process:
Step 1:
Firstly, we need to organize the host library, I tidied mine up, removing excess playlists, random files, things like that. this will make thing a bit easier in the later stages of this process.
Once the library is tidied up, move the entire "iTunes" folder from your Home directory to the "//localhost" directory (The Macintosh HD) and ensure that files are on the same level as the "Applications", "Users", "Library" and "System" directories; this will ensure that the files in the library are available to all users on the machine (this also works for networks)
Optionally you can set the ownership of the folder to the 'administrator' account (the user who will be hosting the library.), you may also like to set the permissions of 'you can' to "Read & Write" (assuming that you are doing this through the user who will host the library); secondly you should set the "Owner" to the administrator who will be hosting the library and set their "access" to "Read & Write" (this will ensure that the administrator has full access to the folder). The final part of this step involves setting access for the "Others" tab to "Read Only" this will ensure that the other users can view but not modify the contents on the folder.
Overview:
So far we have done the following steps:
1. Organized the host library.
2. Placed the iTunes directory into a 'public' directory so that other users may use it. (this step is essential if you plan on sharing the library across multiple accounts on the same machine. NOTE: this step is only necessary if you are wanting to share you library across multiple accounts on the same machine, if you simply want to share the music across a network, use the iTunes sharing facility.
3. set ownership and permissions for the iTunes music folder.
Step 2:
Currently the administrator is the only user who can use this library, however we will address this soon. In this step we will enable iTunes music sharing in the administrator's account, this will enable other users to access the files in the library.
If you are not logged in as the administrator, do so; secondly, open iTunes and select "Preferences" from the "iTunes" menu, now click the "Sharing" tab, if "share my library on my local network" is not checked, the radio buttons below this will now become active, you may choose to share the entire libraries contents, or share only selected content.
Sharing only selected content may be useful if their is explicit content in the library and minors use the network or machine that the library is connected to.
If you have selected "share entire library" go to Step 3, if you have selected share "share selected playlists" read on.
After clicking "share selected playlists" you must then select the playlists that you intend to share across your accounts and network. Once you have finished selecting the playlists, click "OK" to save the settings.
Overview:
In this step we:
1. Enabled iTunes sharing in the administrator's account, now, users on the local network may access the iTunes library, however, users on the same machine may not.
Step 3:
Now we will enable users on the same machine to access the library on the machine. This is achieved by logging in as each user, opening iTunes, opening iTunes preferences, and clicking "look for shared music". now all users on the machine may also access the library that the administrator controls.
This in effect will mean that the user will not need to use their user library, it will be provided to them via a pseudo network connection.
As a secondary measure, I have chosen to write a generic login script that will move any content from the user's "Music/iTunes/iTunes Music" directory to the trash and then empties the user's trash.
This is done through the use of an Automator Application: this application does the following actions.
1. Uses the "Finder" action "Get Specified Finder Items"
1a. The user's "~/Music/iTunes/iTunes Music" folder
2. Uses the "Finder" action "Get Folder Contents"
3. Uses the "Finder" action "Move to Trash"
4. Uses the "Automator" action "Run AppleScript"
4a. with the following:
on run {input, parameters}
tell application "Finder"
empty trash
end tell
return input
end run
IMPORTANT: Once the script is adapted to the user account it must be set as a login item. in order to keep the script out of the way i have placed it in the user's "Library" directory, in "Application Support" under "iTunes".
Overview:
Here we:
1. Enabled iTunes sharing in the user accounts on the host machine, in effect allowing all users of the machine to view a single iTunes library.
2. (Optional) I have created a login application that will remove any content that has been added to user iTunes libraries, this in effect stops other users of the machine from adding music and files to iTunes.
Step 4:
If it is not already enabled, open system preferences and enable Fast User Switching in Accounts Options.
Summary:
We have shared a single iTunes library across multiple user account, while still allowing for network sharing. This method is designed to save space on machines, particularly those with smaller hard drives.
I hope that this hint proves to be helpful and I hope everybody will give me feedback on my process.
regards,
Pete.
iBook G4; 60GB Hard Drive, 512MB RAM, Airport Extreme Mac OS X (10.4.6) iWork & iLife '06, Adobe CS2, Final Cut Pro. Anything and Everything!!!

how to share music between different accounts on a single computer

Shared Photo & Music Libraries for Multiple Users on Same Machine

I've setup multiple users on a single machine and I'm trying to have a common shared folder for photos (w/ Adobe PSE) and music (w/ iTunes). First, on photos:
-Tried setting up a folder on /users/shared/pictures. How can I "share" the main folder and have permissions carry down to all subfolders and files?
-I've given the other user permission, but when logged on, Finder window only displays icon, not preview of image? In cover flow mode, image shows up, though?
-Is this the best approach or is /me/public the better way or /me/pictures (shared) a better way?
And then on music:
-recommendations on best approach to have a single library with multiple users and multiple iTunes accounts.
Thanks in advance

The iTunes sharing is for sharing music between computers on a network.
To share music on a single PC, read this article
http://docs.info.apple.com/article.html?artnum=93195

Sharing the same keychain across multiple user accounts

Hello, Anyone know how to do this? Thanks in advance!

I have tried, without success to share a keychain between two accounts. In Keychain Access -> Edit -> Keychain List there is a Shared checkbox next to each keychain. If I click on that, the keychain disappears from the list of Keychains that you see when you open Keychain Access (and if necessary, click on Show Keychains). The keychain does not show up on any other account, either. The keychain is still there in ~/Library/Keychains.
Seems pretty useless, as does Apple's article "Mac OS X 10.4 Help -- Administering keychains for multiple user" at <http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1775.html>.
Some idiot in the security world recommended that we split our account into administrator and non-administrator, and normally log on only to the non-administrator account. This forces me to try to share files, folder, and keychains, so I can get any work done while logged on from the administrator account. Mostly, I don't think Unix, or Mac OS X, was designed to share things. (This is not a Mac versus PC statement. I only have one account on the PCs I'm forced to use at work -- it may be just as hard or harder on a PC.)
This security advice is stupid! Don't do it. Do everything on one account or you will waste hours and hours trying to bridge the gap between them.
But I would like to know how to share a keychain, since Apple's help files SAY you can. Only it does not work.

Problems with 1 icloud account and multiple users.

We have multiple users all on 1 icloud so we can share apps but also see what people have installed and because IT control the password its upto us what apps get installed. So in that sense this was a good idea. The problem we are having is that the iphone users photos, messages and other things are becoming available on other iphones on this 1 icloud account. So for example one user went on her photos to discover someone elses photos was in their and then also had messages from a contact who only her manager has (also one of the icloud users)
Is there any settings we could change to keep the 1 icloud acount but make it so peoples photos and messages dont sync.

Yes, you can turn off photos in icloud. (settings - icloud- photos)
You can also allow users to use their own apple id's for imessages and facetime. Unlike icloud those can be changed any time, so that does not present security problem. Settings -messages and settings- facetime.
If you dead set on using same apple id, you can make sure that every user only has their phone number checked in messages, so everyone has to go to settings- messages- send and receive and uncheck apple id.

Sharing custom display profiles between multiple users

Hello,
I'm brand new to Mountain Lion and I can't figure out how to share a custom display profile between multiple users on the same MBP. I'm a photographer and I have two users set up on my laptop - one personal and one for shooting. I'm using a Color Munki to calibrate my external monitor and the software creates a profile.
Previously, I could go into my library, copy the profile and drag it into the colorsync folder for my other user, then switch to my other user and find that profile in system preferences/displays.
I have no idea how to do this in Mountain Lion.

Let me simplify this by refering to User A and User B to represent the two separate users I've created on my MBP.
I've done some more digging and here's what I've found: In the Color Sync utility for User A my custom profile is in a user folder, represented by the name I gave the file when the profile was created. That's no problem
When I switch to the User B, there are two profiles in the Color Sync Utility named "Display". The "Display" file was created at the same time my custom profile was created, however, the file names don't match and I don't know why there are two of them.
I'm fairly certain that "Display" profile is the custom profile I want to use, but there's a problem coming down the road: what's going to happen when I profile my monitor again in 3 weeks.

HT1198 Sharing an iPhoto library between multiple users on a single Mac?

Can anyone help me solve this problem? I want to share an iPhoto library that holds all the family pictures across three other users who have separate accounts on the same iMac.

What do you mean by "share"?
If you want the other user to be able to see the pics, but not add to, change or alter your library, then enable Sharing in your iPhoto (Preferences -> Sharing), leave iPhoto running and use Fast User Switching to open the other account. In that account, enable 'Look For Shared Libraries'. Your Library will appear in the other source pane.
Any user can drag a pic from the Shared Library to their own in the iPhoto Window. Remember iPhoto must be running in both accounts for this to work.
If you want the other user to have the same access to the library as you: to be able to add, edit, organise, keyword etc.
Quit iPhoto in both accounts. Move the Library to an external HD set to ignore permissions (or a Disk Image or even partition your Hard Disk.)
In each account in turn: Double click on the Library to open it. (You may be asked to repair the Library Permissions.) From that point on, this will be the default library location. Both accounts will have full access to the library, in fact, both accounts will 'own' it.
However, there is a catch with this system and it is a significant one. iPhoto is not a multi-user app., it does not have the code to negotiate two users simultaneously writing to the database, and trying will cause db corruption. So only one user at a time, and back up, back up back up.

Permissioning problems with TimeCapsule AFP share and multiple users

Hi,
I am currently sharing my TimeCapsule filesystem (guest perms) as AFP, I have it automounting via automounter. Problem is that whoever hit's the automounter dir first is marked as the owner of all the shared files, other users then cannot delete/modify them (i want the share completely world read/writeable). The mount_afp command does not seem to support the relevant fmask/dmask params that mount_nfs does (which would cause the mount to be mounted with consistent ownership.)
So..
1. I presume NFS is not supported (boo!)
2. Does anyone else have this working? I would imagine that I should also be able to get this working through group permissions, but for the same reason i cannot force automounter to mount the filesystem with the user/group ownership I want.
thoughts?suggestions?
Thanks
Liam
P.S. I could also try SMB but playing movies on Frontrow off a networked SMB filesystem is usually poor (compared to NFS anyway)

Yes, you can turn off photos in icloud. (settings - icloud- photos)
You can also allow users to use their own apple id's for imessages and facetime. Unlike icloud those can be changed any time, so that does not present security problem. Settings -messages and settings- facetime.
If you dead set on using same apple id, you can make sure that every user only has their phone number checked in messages, so everyone has to go to settings- messages- send and receive and uncheck apple id.

Problem sharing remote tooltalk session by multiple users

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