Networking

nfs mounts

• made directories /cem02bigdata/, cem03bigdata/, /cem12data/, ...
• change group of each one from "staff" to "wheel"
• under Applications --> utilities, ran Disk Utility
• Choose File--> NFS mounts
• for each mount, click '+'
• enter mount as follows

     nfs://cem02/cem02bigdata  /cem02bigdata
     

• under "Advanced options", enter "-P"
• Verify
• Save
• the above should have worked, but mounting did not work
• then, using editor, make a traditional /etc/fstab file
• when done, ran sudo mount -a
• this worked

User and Group ID's

• use dscl command. examples:
• list all users and their group id's:

   dscl . -list /Users PrimaryGroupID 

• list all information about user pupla

   dscl .  -read /Users/pupla 

• create a new cryoem_g group:

   sudo dscl . -create /Groups/cryoem_g name cryoem_g 
   sudo dscl . -create /Groups/cryoem_g passwd "*"

• change primary group:

   sudo dscl . -change /Users/pupla PrimaryGroupID 20 9014 

• change user ID:

   sudo dscl . -change /Users/pupla UniqueID 502 59407 

• Set ALLOWTOPICVIEW =

-- BillRice - 19 Jan 2011