3.1.2 Determining the ID key used to identify hosts
There are two types of keys you can use to identify hosts: host IDs and node identification keys. You can use either as the ID key for operations on a JP1/IT Desktop Management 2 host.
-
A host ID is a value that uniquely identifies a computer in the JP1/IT Desktop Management 2 system. Unlike the node identification key described below, host IDs are not affected by changes to the network configuration. A host ID is created when JP1/IT Desktop Management 2 - Agent is installed on a computer, and stored in the host ID management file.
-
You can use host names or IP addresses as the node identification key. You cannot use both, so one or the other must be selected during the setup process before you start using JP1/IT Desktop Management 2.
You can change the node identification key that you are using in the middle of the operation, but you will need to delete the following information:
-
System Configuration
-
Destination
-
Job Definition
-
Job Status
-
When determining the ID key used to identify JP1/IT Desktop Management 2 hosts, evaluate whether to use host names or IP addresses as the node identification key.
- Organization of this subsection
(1) Selecting the node identification key
In a network that uses JP1/IT Desktop Management 2, the name used to manage a node (host) is called the node identification key. You can use host names or IP addresses as the node identification key.
Because you cannot use host names and IP addresses together, you must decide which you want to use before you start using the system. For managing servers in a hierarchical structure, there is no need to unify node identification keys within the entire system. Unify node identification keys within the systems managed by a management relay server.
(a) Using host names to manage nodes in JP1/IT Desktop Management 2
You must use host names to manage nodes in the following systems:
-
Systems in which a firewall is deployed
-
Systems that use DHCP
Assign host names according to the rules described in 5.1.2 Assigning host names in JP1/IT Desktop Management 2.
(b) Using IP addresses to manage nodes in JP1/IT Desktop Management 2
In systems where host names are not an ideal way to manage the nodes in the network, you can use IP addresses instead. When you use IP addresses to manage nodes, relay systems and managed computers do not need name resolution definitions such as the hosts file, but management relay servers need such definitions.