VBrick Systems Portal Server ETV v4.1, Руководство администратора, Страница: 17 / 140

Introduction
ETV Portal Server Admin Guide 7
Content added by users in the LAN zone will be ingested to all VOD servers for which they
have permissions using the
Add Video
page. Users in the Internet zone have the
Add Video
page available only if they have permissions for at least one VOD server that is also in the
Internet zone. Content added by LAN users is added to all configured servers that can handle
the content (for example you cannot add MPEG content to a Windows Media server) and for
which you have permission. The content available for viewing may also be limited by the
server type. For example, Internet users will see only MPEG-4 and Windows Media content
on VOD-D and VOD-WM servers respectively. LAN users however will see all content on
all servers.
Table 1. Supported EtherneTV VOD Servers
ETV Internet-Based Servers
ETV Portal Server supports the installation of LAN-based servers and Internet-based
servers. As part of an ETV Server installation, you can configure a VOD-D or VOD-WM
server (see Table 1) to run on your LAN or on the public Internet. Before server
configuration, you assign a range of IP addresses that define the LAN domain, or vice versa,
that define the Internet domain. Any IP address outside that range will assumed to be from
an Internet source, or vice versa, from a LAN source. (See "Assign LAN/Internet Address
Range" in Global Assignments on page 21.)
You can purchase an Internet-based Windows Media server from VBrick (in which case it is
configured by VBrick) or you can purchase and configure it yourself using the Microsoft
documentation (not recommended). You can also install a Darwin Open Source server which
is fully-compatible with ETV Portal Server but is not sold or supported by VBrick. (For more
about downloading, installing, and configuring a Darwin server, go to: http://
developer.apple.com/opensource/server/streaming/) As noted, ETV users can be on the
Internet or on a LAN; Internet users can only access MPEG-4 and Windows Media content
stored on Internet-based servers. LAN users can access all content on all servers both inside
and outside the firewall. To summarize,
Internet-based servers and users are subject to the
following limitations:
• Internet servers support MPEG-4 and Windows Media content only.
• Internet servers support unicast only (they do not support multicast).
• Internet ETV users can add video only to VOD servers in the Internet zone.
• Internet users can only see MPEG-4 and Windows Media content stored on Internet-
based servers.
Server Type Description Zone
NXG Linux-based NXG1/2 VOD server. LAN only
VOD-W Windows-based VOD-W VOD server. LAN only
VOD-D Darwin Open Source server for Linux, Windows, Mac,
etc. Ingests and plays MPEG-4 content only. Requires
an FTP server. LAN or Internet
VOD-WM-
Standard Microsoft Windows Media Server (unicast only).
Requires an FTP server. LAN or Internet
VOD-WM-
Advanced Microsoft Windows Media Server (unicast or
multicast). Requires an FTP server. LAN or Internet