opsi Version 3.3.1 - opsi Download - uib

15. Glossary
Dependant on the network size the network is classified as class A,
B or C. In class A networks (for very large networks) the first
number (1..126) addresses the network itself and the three
remaining segments represent the machine's address.
Class B networks use the first two numbers to address the network
(the first number must be 128..191) and the last two numbers to
specify the machine.
In a class C network three numbers address the network and just
the last segment is used to specify the machine.
All three classes have an address range (i.e. 192.168. for private
networks) which is not routed to the internet. This class structure is
somehow outdated since classless inter domain routing became
practice to make better use of the limited resources of IPv4
addresses.
JSON JSON short for JavaScript Object Notation is a compact data
exchange format. The data are easy to read for people and for
machines. Source: http://de.wikipedia.org/wiki/JSON and
www.json.org
LastSeen Time stamp of the last client connect to the opsi service.
localboot product An opsi packet which is installable by the opsi-preloginloader.
MAC address The 'Media Access Control address' is an unique identifier attached
to the network adapter and is transferred with every data packet.
With this address the computer (respectively its network card) can
be identified worldwide and can be mapped to an →IP-number. The
MAC address is composed from 6 hexadecimal numbers (0..FF)
separated by colon (e.g. 00-08-74-4C-7F-1D). The first 3 numbers
identify the manufacturer of the network adapter.
netboot product An opsi packet which is installable by a bootimage.
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