Account
Domains
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The
computers in the Harvey laboratory are partitioned into
three domains. A separate account is required to access each
domain and depending on your primary group membership, you
can ask for accounts for one, two or all three domains.
Although the accounts for each domain are independent, the
same account settings are maintained on all domains whenever
it is possible to do so. Most important of all: file
ownership and permissions are maintained across all
domains.
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Fulton
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Operating
System
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IRIX
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Servers
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wart
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Services
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Directory:
NIS (Network Information System), formerly known as
YP (Yellow Pages)
File:
NFS (Network File System)
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Clients
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wart,
peto, puck, pistol,
poins, overdone, mouldy,
mopsa, froth
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DeKalb
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Operating
System
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MacOS
X & MacOS X Server
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Servers
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quince,
rumour
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Services
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Directory:
NetInfo and LDAPv3
Password
File:
AFP (Apple Filing Protocol)
Mail/IMAP
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Clients
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rumour,
bottom, elbow, dogberry,
falstaff, bushy, dorcas,
dull, belch, butts,
bagot, fang, feeble,
George
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Cobb
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Operating
System
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LINUX
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Servers
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snare,
shadow
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Services
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Directory:
NIS
File:
NFS
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Clients
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LNXI
(Cluster)
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Interconnections
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Each
domain has a file server: machines in the domain mount the
file system containing the home directories and shared
applications (pathnames in blue below). A machine in one
domain also mounts the file system containing the home
directories (but not applications) from another domain. The
network of cross mounts is not complete: the DeKalb domain
does not export its file systems to other domains. However,
computers in the DeKalb domain have the best connections:
users of this domain have access to the home directories of
all three domains.
Thus, it
is possible to perform long simulations in the Cobb domain,
analyze the results in the Fulton domain and publish the
work in the DeKalb domain and all this can be done without
shuttling data from one computer to another.
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Server
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File
System
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Clients
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Fulton
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DeKalb
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Cobb
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wart
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/gt
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/gt
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/usr/freeware/
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/usr/freeware/
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/SGI
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/SGI
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/Volumes/SGI
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/SGI
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quince
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/Volumes/DeKalb/
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/private/…/Volumes/DeKalb/
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snare
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/GT/X86
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/usr/local
(32-bit
clients)
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/usr/local
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/usr/local
(64-bit
clients)
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/LNX
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/LNX
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/Volumes/LNX
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/LNX
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The long
path names in the DeKalb domain make them rather difficult
to use in a command. You can use the Terminal application to
help you construct the pathname. Use the Finder to locate
the remote folder. This needs a one time set up. Start the
Terminal application and type "cd " and do not complete the
command. Drag the remote folder into the terminal window and
the path will be constructed and added to the command line.
Things are much simpler if you work entirely within the
Finder.
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