Ethernotes

Note: John D. is dressed in all black like Steve Jobs. No turtleneck though.

Understanding the different user account types.

GUEST

• Basic, simple, anonymous dumb login for KIOSKs
• Sub teacher needs access for a day
• Log out and home directory wiped out
• Very handy
• Performance wise, works great
• Falls apart when you have multiple users

MOBILE ACCOUNTS

• Network managed account cached locally
• Operational capability as a local user.
• Get unique Home Directory
• Lots of capability
• Non-synced: dedicated 1 to 1 that are not student accounts. Not regularly using multiple computers.
• Synced: Portable Home Directory
  • RRts – Rapid Return to Service primary reason
  • Secondary: Work on portable and one other. Use sync to get to files between portable and the teacher computer in the lab.
  • It falls apart where I’m using multiple computers all the time
    • Solution: Seating charts.
  • Local account, network managed, complete mirroring of home directory
  • Careful with wireless
  • Falls apart when you try to out think it. Start filtering and it falls apart. It takes about 90 seconds for student to figure out to put iPhoto and iTunes Library into the folder being synched.
  • What happens when students begin creating gigabyte upon gigabyte of multimedia projects. Answered in load balancing.
  • I currently sync “properly” according to John D. Sync ~/Library at login and let others Background sync
• Use FileVault to encrypt: Use on teacher computer?
• Expiry: delete PHDs after a period of time
• External mobile accounts: Put your Home Directory on a USB drive. Travel all over and plug in your drive.
  • Use “any external volume” to keep PHD on laptop
  • Provide a Firewire cable and Macbook power supply at the teacher station in the lab.
  • Boot holding down the T key and login on the teaching station.
  • Try this with Marcy T?
• Syncing stops immediately when it goes to sleep.
  • Must wait for sync to stop before closing lid
• Background syncing should be every 9-11 minutes. Want a lot of little sync
• Syncing is not backup. If you delete on laptop, it only exists on network until the next sync.

NETWORK ACCOUNTS

• John D. is working hard at making this slide go away
• It’s easy for us.
• 90% of developers assume that is using a local account, not a network account
• other 10% assume it is using a local admin.
• MS Office isn’t a low I/O app
• Just to open a browser creates 50MB of open files
• Folder Redirection built-in (I use for Leopard. I have the login script for 10.4)
• iMovie refuse to create a project on a network share point.
• Adobe scratch disks must be redirected locally.

Apple prefers mobility accounts.

Filed under: Macintosh