Known Issues:
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 - If a remote authentication server is configured, but it is down, there may be a delay or a failure in authenticating local users via the web UI.
 - The Safari web browser is currently not supported, due to the way that Safari handles client certificates.

Fixes and Features by Version:
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5.1.0 (August, 2017):
This introduces many new features on Lighthouse 5.0.0 and resolves bugs raised from the beta.
- (Breaking change) The Lighthouse OpenVPN connection now runs on UDP. This means Lighthouse 5.1.0 is only compatible with Opengear Console Servers version 4.1.0+.
- Add functionality for pushing configuration templates to groups of Opengear devices. Currently supported are Group and AAA templates.
- Add node-upgrade command line utility.
- Add system upgrade to the web UI. Users are able to upload a new system image or provide a URL where the file is hosted.
- Add license restrictions to the Lighthouse. Without a license, the Lighthouse is in evaluation mode with a limit of 5 enrolled nodes. Users can purchase licenses that increase that limit and give access to enrol third party devices.
- Add automated migration for configuration when upgrading to new Lighthouse versions.
- Add support for specifying multiple endpoints to access a Lighthouse device (from an Opengear Console Server) and custom ports on the Lighthouse that will listen for incoming requests.
- Add device support for non-Opengear devices (known as third party devices) with native configuration support for:
    -- Avocent ACS 6000 & 8000
    -- Avocent Classic
    -- Cisco ISR2921
- Add Console Gateway page with responsive searches over devices' serial ports
- Improved pmshell command line utility.
- Improved the config cli for manipulating Lighthouse configuration (ogconfig-cli).
- Improved the speed and stability of the configuration server and REST API.
- Improved the Web UI for usability.
- Improved configuration validation and feedback to client.
- Improved RAML documentation for the REST API.
- Defects fixed from 5.0.0b0 release:
    -- Users are redirected correctly after logging in.
    -- Fixed some stty issues around remote CLI sessions.
    -- Improved feedback when user attempts to access commands without suitable permissions.
    -- Free text search with multiple terms
    -- SSH custom delimeter parsing
    -- Disabling an interface could cause other interfaces to go down
    -- Group names can now contain a dash
    -- Console Gateway conventions are now adhered to for specifying username and port labels
    -- Improved shutdown & restart times
    -- Fixed enrollment of Console Servers with ports in Serial Bridging and Terminal Server mode
    -- Hostname and system time will now change in syslog when the system is updated
    -- A user's home directory will now be deleted when the user is deleted
    -- REST requests proxied via the Lighthouse to the Console Server will now be forwarded correctly by the Lighthouse
    -- Fixed an enrolment failing to complete if a node was approved too early in the registration stage. A node can now be approved at any point without breaking the enrollment.

5.0.0 (April, 2017):
This is a ground up rewrite of Lighthouse. New features include:
 - Add modern HTML5 Web UI
 - Add streamlined user and groups mechanisms
 - Add secure OpenVPN connections to remote nodes
 - Add REST API for external integration and control of LH5
 - Add HTML5 local web terminal
 - Add HTML5 Console Gateway terminals
 - Add 'Smart Groups', a way to group managed nodes through saved searches over their configuration and associated searchable tags
 - Add support for searchable tags to be added to managed nodes
 - Add a quick search bar at the top of every UI page that lists managed nodes
 - Add initial and on-going synchronization of node serial port configuration, avoiding the need to 'Retrieve Managed Devices'
 - Add streamlined enrollment methods via DHCP ZTP, USB, or Web UI
 - Add consistently validated configuration backend
 - Add tab-completable config cli