RealNetworks Products for UnixWare Release and Installation Notes

About RealNetworks products

RealServer(TM) G2 uses a client/server architecture to support large numbers of concurrent users. The server delivers encoded media over a network to RealPlayer(TM), the client program that enables users to view and listen to RealAudio^® and RealVideo^® clips. You can encode media from live input or an existing digitized content file.

The RealAdministrator is included with RealServer, which allows you to configure your server and monitor server status through a web browser via the Internet or your intranet (see the chapters on customizing RealServer and on monitoring activity in the Administration Guide).

For additional and more up-to-date information about RealNetworks, Inc. products, see their web site: http://www.real.com.

What's new in this release

RealServer G2 includes the following new features in this release:

• RealSystem Administrator, a new graphic administrative interface

• new license files to facilitate upgrades

• new control and packet protocols

• new URL format

• new configuration file format (XML)

• open architecture implemented with plug-ins

• new ``pull'' splitting method

• control access to ports based on IP address

• new monitoring methods with Java Monitor

See "Chapter 1: What's New in RealServer G2?" in the RealServer Administration Guide for details about these features.

The RealPlayer Release 5 and RealAudio Encoder Release 3.1 have not been updated for this release. For information concerning updates to these products on SCO platforms, see the SCO UnixWare Optional Services site (http://www.sco.com/unixware/optional_services).

RealNetworks' Year 2000 Readiness Statement is available from their website:

http://www.real.com/company/y2k.html

System requirements

If you are installing RealNetworks products on UnixWare 7 releases earlier than Release 7.1.1, you must install one of the following Support Level Supplements (SLS) to ensure correct functioning:

on UnixWare 7 Release 7.0.1

ptf7051d (UnixWare 7.0.1 libc Patch)

on UnixWare 7 Release 7.1.0

ptf7401c (In-Kernel Sockets Supplement)

No additional patches are currently required for RealNetworks products on UnixWare 7 Release 7.1.1.

RealServer G2 requirements

Software: UnixWare 7 Release 7.0.1 or higher
RAM:
   32MB (64MB recommended) for light server traffic
   128MB for medium traffic
   256MB for heavy traffic
Disk space: 12MB free disk space
Other: Web server with configurable MIME types

RealPlayer Release 5 requirements

Software: UnixWare 7 Release 7.0.1 or higher
Supplement: Audio Configuration Manager Supplement --
   including Audio configuration manager, utilities, and drivers
   as well as the ISA Plug and Play component specific to
   the operating system
RAM: 32MB (64MB recommended)
Disk space: 2MB free disk space
Video card: 256 colors required (24-bit color recommended)
Sound card: 16-bit sound card with Open Sound System sound driver

RealAudio Encoder Release 3.1 requirements

Software: UnixWare 7 Release 7.0.1 or higher
RAM: 32MB (64MB recommended)
Disk space: 4MB free disk space
Sound card: 16-bit sound card with Open Sound System sound driver

RealNetworks licenses

The RealNetworks RealServer G2 product is licensed with all networked versions of the UnixWare 7 operating system for 10 streams OR seats. It is provided for free use in accordance with the product license agreement and does not require an additional license.

The RealPlayer and RealAudio Encoder products do not require licensing.

Additional licenses can be purchased to increase connections and functionality:

• RealSystem G2 Internet Server (100, 200, 400, and 1000 streams)

• RealSystem G2 Enterprise Server (100 and 600 seats)

• additional streams (to a total of 60) for Basic Server Plus

To purchase additional licenses, call RealNetworks at 800-444-8011, or see their web site:

http://www.real.com

See also:

• ``Licensing the RealNetworks server''

Commerce Server not supported on SCO platforms

The RealNetworks manuals occasionally make reference to a Commerce Server or ``the (optional) commercial database''. This product is not part of SCO's distribution of RealNetworks software, but can be purchased separately from RealNetworks, Inc. to run on another platform.

RealPlayer G2 available free

When ready for distribution, RealPlayer G2 for SCO platforms will be available for free download from the SCO web site at:

http://www.sco.com/download

For more about RealPlayer G2, see the RealNetworks, Inc. web site at http://www.real.com.

Installing RealNetworks products

TCP/IP

required for all RealNetworks products

X graphical environment with browser

• required for RealPlayer

• required for RealServer only if RealAdministrator and Monitor are used

• recommended for all products to enable SCOhelp for documentation access

To add more streams or seats to an existing G2 server or to upgrade server functionality (from Basic Server Plus to Internet or Enterprise Server), you need a separate license -- see ``Licensing the RealNetworks server''.

General installation procedures

Follow these procedures to install RealNetworks products using pkgadd or Application Installer. If you are installing or upgrading RealServer, you should be familiar with the material in ``RealServer installation procedures'' before proceeding.

pkgadd procedures

To install the package from downloaded files:

1. Log in as root.

2. Download the package to an installation directory; for example, /tmp.

3. Use the pkgadd(1M) command to install it by entering:
   
   pkgadd -d /tmp/package_name

1. Log in as root.

2. Insert the CD-ROM in the drive if you have not already done so.

3. You can use the pkgadd(1M) command to install with the distribution CD mounted or unmounted (you may have mounted the CD to read these Release Notes from the distribution media):

   • mounted
     
     pkgadd -d /mount_point package_name

   • unmounted
     
     pkgadd -d cdrom1 package_name

These packages are currently provided on the UnixWare 7 Release 7.1.1 Optional Services distribution media:

	RealServer	RealPlayer	Encoder
complete set (software and documentation)	RNg2serv	RNplayer5	RNenc31
software only	rng2serv	rnplayer	rnenc31
documentation only	rng2servD	rnplayerD	rnenc31D

                             |  RealServer   RealPlayer   Encoder
 ----------------------------|-------------------------------------
 complete set                |  RNg2serv     RNplayer5    RNenc31
 (software and documentation)|
 software only               |  rng2serv     rnplayer     rnenc31
 documentation only          |  rng2servD    rnplayerD    rnenc31D

Application Installer procedures

If you are using the Application Installer:

1. Start the Application Installer by clicking on the Application Installer icon in the SCOadmin folder on the UnixWare 7 desktop.

2. Select the correct device from which to install (for example, CD-ROM_1).

3. Click on Update View to see the products that are available to install.

4. Select the product set and click on Install.

   Depending on the product you are installing, you may need to respond to some additional prompts; for RealServer installation prompts, see ``RealServer installation prompts''. Answer these prompts as appropriate for your installation.

   Repeat this step for each product you want to install.

5. When you have installed all desired products, select Actions->Exit.

RealServer installation procedures

RealServer G2 installs into the directory /usr/lib/rng2server. Previous Release 5 servers installed in /usr/lib/pnserver.

   "UX:pjkginstall:ERROR: request script did not complete successfully"

RealServer installation prompts

Choose automatic or custom installation:

• automatic installation

  If you have a license to enter, you must do a custom installation. If you don't have a license, there is no more mandatory input, so you can select automatic if you prefer and go to ``After installing the RealNetworks server''.

• custom installation

  If you choose to install manually, you will need to provide information for some or all of the following topics (depending on the specific server you are installing):

  • LICENSE

    If you have an upgrade or separate license, enter the path to the license file. If you don't have a separate license, press <Enter> to accept the default license for Basic Server Plus, which is included with your operating system license -- see ``RealNetworks licenses''. You can add other licenses at any time after installation -- see ``Licensing the RealNetworks server''.

  • USERNAME and PASSWORD

    Enter an administrative username and password or press <Enter> to accept the default of admin.

  • PNA, RTSP, HTTP PORTS

    ---

    NOTE: The default ports for RealServer G2 are those used by RealPlayer and RealPlayer Plus to play content from a URL that doesn't specify a port.

    If you change your server's port numbers from the defaults, you must include port numbers in the URLs that link to your content. Failure to include non-default port numbers might result in Players receiving streams via HTTP or not receiving them at all.

    Port numbers must be unique across all applications on your platform, not just RealNetworks.

    ---

    • PNA PORT

      Enter a port on which RealServer will listen for PNA Connections (begin with pnm://) or press <Enter> to accept the default of 7070.

    • RTSP PORT

      Enter a port on which RealServer will listen for RTSP Connections (begin with rtsp://) or press <Enter> to accept the default of 554.

    • HTTP PORT

      Enter a port on which RealServer will listen for HTTP Connections (begin with http://) or press <Enter> to accept the default of 8080.

  • REALADMINISTRATOR PORT

    Enter a port on which RealServer will listen for RealAdministrator requests. The default has been initialized to a random value for security. Verify that the pre-assigned port will not interfere with ports already in use on your system. Press <Enter> to accept the default or change it if necessary.

  • ENABLE SERVER

    Answer y to have the server run automatically upon system reboot.

    If you answer n, you can enable the server at any time after installation -- see ``Enabling and disabling the RealNetworks server''.

  • START SERVER

    Answer y to start the server immediately after installation is complete.

    If you answer n, you can start the server at any time after installation -- see ``Starting and stopping the RealNetworks server''.

When the installation is complete, see ``After installing the RealNetworks server''.

After installing the RealNetworks server

If you chose not to enable or start the server automatically during installation, you can do it now. See:

• ``Enabling and disabling the RealNetworks server''

• ``Starting and stopping the RealNetworks server''

Be sure to also test the server.

You can add a license or modify the server configuration. See:

• ``Licensing the RealNetworks server''

• ``Configuring the RealNetworks server''

Enabling and disabling the RealNetworks server

``Enabling'' means that the server will be restarted automatically upon system reboot. If the server wasn't enabled as part of the installation, you can enable the server at any time to have it run automatically upon system reboot:

1. Log in as root.

2. At the command line, enter:
   
   /etc/realserver enable

At any time, you can disable the server so it no longer starts on reboot:

/etc/realserver disable

To find out if the server is enabled, enter:

/etc/realserver query

Starting and stopping the RealNetworks server

If the server wasn't started as part of the installation, you can manually start the server at any time:

1. Log in as root.

2. At the command line, enter:
   
   /etc/realserver start

To manually stop the server from running, enter:

/etc/realserver stop

To find out if the server is running, enter:

/etc/realserver query

Testing the RealNetworks server

Make sure the server has been started.

To test that RealServer is installed properly:

1. Access RealAdministrator through a web browser by opening:
   
   http://serverName:port/admin/index.html

   serverName is the name of the system on which RealServer is running. port is the RealAdministrator port number you entered during installation.

   When prompted for a username and password, use the values you entered during installation. (These values are also defined in the rmserver.cfg file. For information on the rmserver.cfg file, see Appendix A, B, and C in the Administration Guide.)

   ---

   NOTE: If you're not prompted for a username and password and can't access RealAdministrator, the server might be installed properly, but isn't running -- see ``Starting and stopping the RealNetworks server''.

   In particular, you may encounter this problem on a UnixWare 7 Release 7.1.0 system when the server is running. If so, you must install ptf7401c (In-Kernel Sockets Supplement) as described in ``System requirements''.

   ---

2. From the RealAdministrator, use the monitor to check the status of the server.

See also:

• the chapter on customizing RealServer in the Administration Guide

Licensing the RealNetworks server

Server licenses are cumulative. Starting with the free RealSystem G2 Basic Server Plus license, you can add more connections or functionality by obtaining and applying additional licenses.

When you purchase a license, you are provided with a license file. Simply copy the new license file to the /usr/lib/rng2server/License directory and restart the server. The server will then have the newly licensed capabilities.

See also:

• ``License Information'' in the chapter on starting RealServer in the Administration Guide

Configuring the RealNetworks server

You can customize the various server settings from the:

• RealAdministrator graphical interface (see the chapter on customizing RealServer in the Administration Guide), or

• command line, by editing the file /usr/lib/rng2server/rmserver.cfg (see Appendix A, B, and C in the Administration Guide).

Changes you make through RealAdministrator are reflected in the server's configuration file. Each time this file is written to from RealAdministrator, a backup of the rmserver.cfg file is made with the name rmserver.cfg.bak. If you encounter problems with your system and must resort to your original server configuration file, copy your backup file and restart your server.

Removing RealServer G2

Remove RealNetworks servers using the pkgrm(1M) command or the Application Installer

If you want to remove an existing RealServer Release 5, do so before beginning the RealServer G2 installation, but first preserve your configuration and content (if desired):

1. If you've done any customized server configuration, save aside the the file /usr/lib/pnserver/server.cfg (for RealServer 5.0 or Basic Server Plus 5.0). The format of this file is not compatible with the comparable RealServer G2 server configuration file, /usr/lib/rng2server/rmserver.cfg, but it may be useful for reconfiguration, particularly of port numbers.

2. If you've modified or added any content files, save aside the directory /usr/lib/pnserver/content (for RealServer 5.0 or Basic Server Plus 5.0). Files from this directory can be copied directly into the comparable RealServer G2 directory, /usr/lib/rng2server/Content

3. Remove the existing server product using the pkgrm(1M) command or the Application Installer, selecting the product to be removed from the list of installed software.

If you do not want to remove an existing RealServer Release, simply follow the installation steps and respond to the prompts about removing the previous server and preserving configuration and content. When installing RealSystem G2 server, you are not required to first remove RealServer Release 5. However, although both servers can be installed on a system, you cannot run both servers at the same time.

If you want to reinstall RealServer G2, save aside any existing RealServer G2 server configuration file (/usr/lib/rng2server/rmserver.cfg) and contents files in the /usr/lib/rng2server/Content directory. These files can be copied back to their original locations after removing the original RealServer G2 using pkgrm(1M) or the Application Installer.

RealNetworks documentation

• SCOhelp, the online documentation reader, after the RealNetworks documentation packages are installed. From the UnixWare 7 Documentation page, click:
  
  Internet and Intranet -> RealNetworks

• a browser capable of displaying frames (for RealServer G2 documentation only). Start the browser and open:
  
  file:/usr/lib/rng2server/RealAdministrator/Docs/Manual/realsrvr.htm
     (for RealServer Administration Guide)

• RealAdministrator (for RealServer G2 documentation only). You must have admin privileges to view the documentation using RealAdministrator.

RealServer Administration Guide documents all of the RealNetworks G2 servers. Depending on which RealServer product you purchased, some of the features described in this manual may not be available to you or may be limited in some way (such as the number of streams you can transmit simultaneously). Consult your license file for a list of which features are enabled on your RealServer. If you would like to add to your RealServer's capabilities, contact SCO, RealNetworks, or your reseller. (To review the new features, see Chapter 1, ``What's New in RealServer G2'' of the RealServer Administration Guide.)

Because the RealNetworks products are supported by several operating systems, their documentation includes information specific to other operating systems. You can ignore such information.

See also:

• Online Help provided by RealAdministrator

• /usr/lib/rng2server/RealAdministrator/Docs/readme.htm

• RealNetworks web site at http://www.real.com.

Setting up push splitting

The instructions for setting up push splitting in the chapter on splitting and multicasting in the Administration Guide are not correct. Follow these instructions instead.

To connect two machines for push splitting (for example, source.server.com and splitter.server.com), do the following:

• On the source RealServer:

  1. In RealAdministrator, select Configure->Splitting->Push.

  2. Fill out only these fields:

     MountPoint: /farm/ (Due to a general limitation, this MUST be /farm/.)

     HostName: source.server.com

  3. Click on Apply, then restart the server.

• On the encoder

  1. Start a live encode called live.rm on source.server.com.

• On the splitter

  1. In RealAdministrator, select Configure->Splitting->Push.

  2. Fill out only these fields:

     MountPoint: /farm/ (This can be anything -- just make sure the ultimate URL uses it.)

     HostName: splitter.server.com

  3. At the bottom, select ADD A SPLITTER SOURCE, then enter:

     HostName: source.server.com

     Port: 554 (This can be EITHER the source server's RTSP or HTTP port -- defaults of 554 and 8080.)

  4. Click on Apply, then restart the server.

• In the player

  1. Use the URL:
     
     rtsp://splitter.server.com/farm/source.server.com/encoder/live.rm

Printing PostScript documentation

If you prefer to read printed documentation, you can download the PostScript^® from the SCO web site to print the RealServer Administration Guide:

1. Download the PostScript files into a temporary directory (for example, /tmp1) by pointing your browser at:
   
   http://www.sco.com/documentation/postscript

2. Change to the download directory, for example:
   
   cd /tmp1

3. The PostScript is provided in gzip (.gz) compressed format. You must use the gunzip utility to uncompress these files.

   If you don't already have the gunzip utility:

   1. Download gunzip_osr5.tar to the temporary directory from:
      
      http://www.sco.com/documentation/postscript/bin/gunzip_osr5.tar

   2. Extract the gunzip binary into the file /usr/bin/gunzip with:
      
      tar xvf gunzip_osr5.tar

4. From the download directory, uncompress and print the files:
   
   /usr/bin/gunzip *.gz | lp -opost -dprinterName

   Substitute the name of a PostScript printer for printerName and, if necessary depending on your printer model script, change the -opost option.

Accessing the RealEncoder manual page

The RealEncoder package includes the rmenc(1) manual page, which is available using the man(1) command. To access this manual page, you must first edit /etc/default/man and ensure that /usr/local/man is in the MANPATH setting.

The rmenc(1) manual page is not available using SCOhelp.

Known limitations

RealServer G2 limitations

• RealServer administrative users are created with file permissions of 644 (globally readable) in the directories /usr/lib/rng2server/adm_b_db/users and /usr/lib/rng2server/enc_r_db/users. These files contain passwords in clear text. After installation (and whenever you create a new administrative user), be sure to change the permissions on these files to whatever works best for the desired security level in your environment.

• The operating system release number is not displayed correctly by RealAdministrator. On UnixWare 7 systems, RealAdministrator displays ``unixware 5'' as the operating system release number. Use the command uname -v to display the correct operating system release number.

• Do not configure two services for the same port (for example, HTTPPort and MonitorPort) because the services will not function correctly.

• Using RealAdministrator to change the administrative port number (that is, in Configure -> General Setup -> Ports -> ) may cause a browser error in the current RealAdministrator session, such as:

     Netscape's network  connection was refused by the server: 
     machinename.com:oldportnumber
  

  To work around this problem, enter the new port number in your current session. The new port number will take effect and be recognized the next time you start RealAdministrator.

• ``Scalable Multicast'' error message in log file at server startup is incorrect.

  Whenever the server is started, the following message appears in the server's error log file:

     Scalable Multicast: Could not find Config entry -- Initialization failed.
  

  This message is incorrect and should be ignored; the server does start successfully.

• ``fork call failed'' error message.

  By default, RealServer uses 64MB of RAM. When trying to execute a new program, you will see this error message if swap space is not available.

  You can either add more swap space to your system using the swap -a command or you can limit the amount of memory RealServer uses by starting RealServer with the -m parameter:
  
  rmserver rmserver.cfg -m 32

  The number after -m can be any amount of memory in megabytes, 32 or greater. Each megabyte of RealServer memory accommodates 3 - 4 simultaneous connected users. To allow 200 users to connect, specify 50 megabytes of memory instead of 32.

• The RealAdministrator Monitor always shows CPU usage as 0% regardless of what the usage actually is. To obtain the CPU usage at the UnixWare 7 command line prompt, use rtpm(1M), the real time performance monitor.

• To use G2SLTA, the live broadcast simulator, you must run it from the directory in which it resides:
  
  cd /usr/lib/rng2server/Bin
  ./g2slta.sh

• Live archiving with SureStream is not supported.

• The instructions for setting up push splitting in the chapter on splitting and multicasting in the Administration Guide are not correct. For the correct instructions, see ``Setting up push splitting''.

RealPlayer Release 5 limitations

• RealPlayer doesn't play video frames unless a sound card is installed and configured properly.

• RealPlayer Release 5.0 does not support 16M-color resolution. Change to a lower resolution to allow RealPlayer to work correctly.

• Playback of both audio and video streams might be degraded by intense system activity. In some cases, RealPlayer will stop completely if there are other CPU-intensive processes running.

  Under some circumstances, you can improve audio/video reproduction quality by:

  • choosing normal as opposed to zoom in the View menu of the rvplayer

  • minimizing rvplayer window entirely

  • choosing a smaller bandwidth when possible; that is, fewer UDP packets per second

  • using a faster video card with an optimized driver; that is, don't use the VESA driver

  • using a faster system

• RealPlayer Release 5.0 might dump core when trying to run in 8-bit audio mode. When running the player, select View -> Preferences -> Advanced and ensure that the ``Disable 16-bit sound (use 8-bit only)'' toggle box is not checked. You should not have to run in 8-bit audio mode.

©1998 RealNetworks, Inc.

This publication is protected under copyright laws and international treaties.

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Information in this document is subject to change without notice and does not represent a commitment on the part of The Santa Cruz Operation, Inc.

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Document Version: G2 1.0c
03 September 1999