HostPlus's offers client-server software system and file format(s) by Real Networks that allows Internet users to play audio and/or video-based multimedia content in real-time as they are being downloaded (called "streaming media"), instead of the user having to download the complete file before being able to play it.
RealServer Definitions Questions & Answers
What is RealServer/Media/Audio?
RealServer is the software that streams media (RealAudio and RealVideo) over a
network. The client receives the media in real-time, and does not have to wait for the clip to download.
RealMedia is any media that is specifically created to be streamed from RealServer.
RealAudio is an audio only streaming format. RealVideo is a video streaming format that includes both audio and video.
The RealPlayer client for viewing RealAudio and Real Video is available as a free
download at: http://www.real.com/player. Click on the link to the FREE player download.
How can I create Real Audio/Video files?
You can create RealAudio and RealVideo files with RealNetworks RealProducer. More
information on obtaining and using RealProducer can be found at:
RealServer pricing and package information
How much does access to the RealServer cost?
The cost of RealServer Access depends on what type of stream is desired. Shared streams are included in Silver, Gold and Platinum packages. Dedicated streams are available only in the Gold and Platinum packages. For the current price of dedicated stream check our pricing list.
What packages include RealServer access?
The Silver, Gold and Platinum packages include RealServer shared streams. The Gold
and Platinum packages include the option to purchase dedicated streams.
What is a shared stream?
Shared streams are a pool of streams shared between Silver, Gold and Platinum package owners. The streams are available on a first come, first served basis.
If your business needs require guaranteed access to streams, you should consider the
dedicated streams purchasing option that comes with the Gold and Platinum packages.
How many shared streams are allowed per user?
It is difficult to determine the number of shared streams that a user can have access to
since shared streams are allocated on a first come, first served basis from a shared pool of streams. Theoretically, the maximum number of shared streams available to a user (if only that user was accessing the shared pool of streams) would be the number in the pool.
How are shared streams allocated?
Shared streams are allocated on a first come, first served basis from a shared pool of
What is a dedicated stream?
A dedicated stream is a stream that is guaranteed to be available to the user, unlike a
shared stream. Dedicated streams can be purchased by owners of Gold and Platinum
How many dedicated streams are allowed per user?
The number of dedicated streams that a user has access to is determined by the number of streams the user has purchased. Streams are available for sale to owners of Gold and Platinum packages in units of five.
Can additional streams be purchased?
Yes. Additional streams can be purchased in units of five streams by owners of Gold and
Platinum packages. For the current price of additional stream check our pricing list.
How much bandwidth is allowed per user?
In general, the amount of bandwidth (amount transferred from the domain per month in megabytes) is determined by the type of package the user has purchased. The bandwidth used by shared and dedicated streams is applied to the monthly transfer limit.
Can additional bandwidth be purchased?
Yes. Additional bandwidth can be purchased. Check our pricing list for the current price
of additional bandwidth.
RealServer technical details
How do I set up a user for RealServer access?
Presently, to set up an end user with access to the RealServer, you must contact your
account executive. An automated solution is being created and will be released shortly.
What protocols does RealServer support?
The RealServer supports three protocols.
RTSP: The Real Time Streaming Protocol (RTSP) is designed specifically for clips
created and read with RealSystem G2 tools. It is an open standard protocol that supports SureStream files as well as SMIL, RealText, and RealPix files.
PNA: The Progressive Networks Audio (PNA) protocol is designed and used with
RealSystem versions 5.0 and earlier. RealServer supports PNA for compatibility with
older versions of RealPlayer. PNA is a proprietary protocol.
What protocol should I use?
The protocol is determined by the type of media you are streaming and to some extent on the client's network configuration. Using the correct protocol ensures that the media will be streamed as fast as possible. Using the wrong protocol can result in poor streaming quality.
RTSP is the best protocol for media created with RealSystem G2 tools. It supports many
media styles and is open standard. Older (legacy) media developed with RealSystems and earlier should use the PNA protocol.
What ports does the RealServer listen on?
The RealServer listens to three separate ports. What port gets accessed depends on the
protocol being used. The ports and their related protocols that RealServer listens on are:
Protocol, Port - RTSP 554 and PNA 7070
What directory do I upload my RealMedia files to?
You must upload your RealMedia files to your public directory. If you upload to a
subdirectory of your public directory, the subdirectory must be reflected in the access
URL. The URL used to access your RealMedia files depends on the protocol being used.
See the next section for details on URL formats.
How do people connect to my RealMedia files?
The URL used to access a RealMedia file depends on the protocol being used:
Protocol URL format
RTSP rtsp://<your domain>/<your domain>/<filename>.rm
PNA pnm://<your domain>/<your domain>/<filename>.rm
For example, when using the RTSP protocol, if you wanted people to access a RealMedia
file called “myrealmedia” and your domain was “mydomain.net”, then the URL would be
Note: In a URL, the PNA protocol is represented by the letters "PNM". The domain part of the URL represents your public directory.
In the previous example, if you place the file “myrealmedia” in a subdirectory of public,
the subdirectory must be reflected in the access URL. If you upload the file to the
directory /public/files, the URL for the file (using the RTSP protocol) must be:
Where can I find more information?
Real.com main download and info site - http://www.real.com
Real.com's support page - http://service.real.com/
RealNetworks start-up demos - http://www.realnetworks.com/getstarted/
RealNetworks developer support - http://www.realnetworks.com/devzone/index.html