H

heatsink A structure, attached to or part of a semiconductor device, that can dissipate heat to the surrounding environment.

host A system, such as a back-end server, with an assigned Internet Protocol (IP) address and host name. The host is accessed by other remote systems on the network.

host ID Part of the 32-bit Internet Protocol (IP) address used to identify a host on a network.

host name The name of a particular machine within a domain. Host names always map to a specific Internet Protocol (IP) address.

hot plug Describes a component that is safe to remove or add while the system is running. Typically, the system must be rebooted before the hot-pluggable component is configured into the system.

hot swap Describes a component that you can install or remove by simply pulling the component out and putting a new component into a running system. The system either automatically recognizes the component change and configures it, or requires user interaction to configure the system. However, in neither case is a reboot required. All hot-swappable components are hot-pluggable components, but not all hot-pluggable components are hot-swappable components.

Hypertext Transfer

Protocol (HTTP) The Internet protocol that retrieves hypertext objects from remote hosts. HTTP messages consist of requests from client to server and responses from server to client. HTTP is based on Transmission Control Protocol/Internet Protocol (TCP/IP).

Hypertext Transfer

Protocol Secure

(HTTPS) An extension of HTTP that uses Secure Sockets Layer (SSL) to enable secure transmissions over a Transmission Control Protocol/Internet Protocol (TCP/IP) network.

I

in-band system

management Server management capability that is enabled only when the operating system is initialized and the server is functioning properly.

Glossary

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Sun Microsystems X4150 manual Hypertext Transfer Protocol Secure, In-band system