Host database capabilities

Here is a list of all the capabilities that we are using for the host database at the time of this writing. It is likely that we will define additional capabilities, or even new capability types, in the future when we find that more host attributes need to be documented.

The letter `x' in the left column is used as a placeholder for the capability value (comma-lists may, of course, have more than the three elements indicated in the table).

[You need a table-capable browser to view the following table of capabilities.]

CapabilityMeaning
:arch=x: hardware platform; value must be listed in /home/config/etc/arch.allowed
:os=x: operating system version; value must be listed in /home/config/etc/os.allowed
:model=x: machine model
:room=x: physical location
:ipaddr=x: IP address
:if=x,x,x: list of interfaces (for multi-homed hosts); alternative to ipaddr
:display#x: display depth in bits (0 for character terminal console)
:resolution=x: display resolution in pixels (x × y)
:memory#x: size of main memory in Mbytes
:mhz#x: processor speed
:serial=x: serial number
:invent=x: inventory number
:cpus#x: number of processors
:user=x,x,x: login-name(s) of primary user(s). In place of a login-name, grp- followed by a group-name may be given.
:login: normal users may login to this machine
:root: root may login to this machine from a central location
:trusted: machine is a ``trusted host''
:admin: machine is maintained by central technical staff
:org=x: organizational entity to which this machine belongs
Capabilities used in records referenced by org=
:group=x: name of organizational entity (e.g. of research group)
:contact=x,x,x: administrative contact for the group (same syntax as user=)

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