Satellite (software)
| Original author(s) | Red Hat |
|---|---|
| Initial release | 2002 |
| Stable release |
6.2 / July 26, 2016
|
| Operating system | Linux |
| Website | access |
In computing, Red Hat Satellite is a systems-management product by the company Red Hat which allows system administrators to deploy and manage Red Hat Enterprise Linux (RHEL) hosts.
A Satellite server registers with Red Hat Subscription Management, mirrors all relevant software like security errata and bug fixes, and provides this together with locally added software and configuration to the attached servers.
The managed hosts register against the local Satellite server and access the provided resources like software packages, patches, configuration, etc. while they also provide information about the current health state of the server to the Satellite
As of March 2017:
The Red Hat Satellite Server enables planning and management of the content life cycle and the configuration of Capsule Servers and hosts through GUI, CLI (Hammer), or API (RESTful API).
Capsule Servers mirror content from the Satellite Server to establish content sources in different geographical locations, they are analogous to the Red Hat Satellite 5 Proxy Server.
As well as Supported Managed Hosts Red Hat Satellite 6 also has some deployment and management capability on certain other hosts though Red Hat Support for these will be limited.
Satellite generally operates in "connected" mode, registering directly with the RHN and downloading relevant software into Satellite's software channels. The organisation's hosts then register against the local Satellite server, instead of directly against Red Hat Network.
For secure deployments, Satellite can operate in a "Disconnected" mode, where updates are downloaded directly from Red Hat via an Internet connected machine and then uploaded into Satellite or a local offline RHN proxy.
Both modes allow the organisation to control which versions of software it makes available for its hosts, as well as making additional software available within the local network.
Satellite offers numerous methods for deploying hosts, including simple kickstart, bare metal install and re-imaging. Current versions of Satellite support kickstart using Cobbler as an underlying framework. PXE Boot, and Koan are methods that can be used to implement bare metal installs and re-imaging of hosts.
Satellite assists in remotely managing hosts in several areas: software, operational management, and configuration. The 3 main mechanisms for managing hosts are:
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