[cobalt-users] Real Server Basic on RaQ4r

[Lumir G Janku <lgjanku@xxxxxxxxxxxx>]

Those of you that wonder about setting up Real A/V streaming, the matter is 
fairly simple.

Unless you want to pay a bundle of bucks, you would opt for a Real Server 
Basic, that allows 25 simultaneous streams.
Of course, some may point out that 25 streams is not that much. True, and 
if you have RaQ4r with 512Mb Ram, then you can actually afford to have 
several RSB's running on the system. In fact, 3 RSB's. Why 3? That's is how 
many mounted partitions you have. I have been unsuccessful running more 
than one server per partition, however 3 x 25 streams is way better than 25 
only. The only thing one needs to premeditated are the ports, each of the 
three would utilize different ones, otherwise the install would complain 
that the ports are not available. But that is a simple matter.

Installation
========

Download RSB :
http://proforma.real.com/rn/servers/univdwnld/index.html?ulf=bas&src=noref,rnhmpg_041301,rnhmtn,prdctmn_041301,srvrbsc_011901

The partitions:
/
/var
/home

so

/ra
/var/ra2
/opt/ra3  (opt is on home partition)

Make sure that:
1. you have all the patches installed

2. log on to telnet or secure shell and su, chmod the directory where you 
would be installing to 775

3. It is possible to install from one source location to all three install 
directories, but for the sake of clarity and knowing where you are, it is 
better to copy the .lic and  .bin files into the install directory.

4. do not forget to chmod the rs-8-0-linux-libc6.bin to 755 so it is 
executable.

5. it is best to have the license file in the same directory (one license 
file will do for all 3 configurations, but you can fetch 3 licenses by 
modifying your information in the download request form). Copy the license 
file name to your clipboard!

6. execute the binary: ./rs-8-0-linux-libc6.bin

7. follow the prompts. The license file path is a full path, including the 
license filename that you have on your clipboard. If you do not supply it 
or it's incorrect, the RSB defaults to 10 streams only.

8. I recommend using different ports than defaults in some cases, in 
parentheses are the numbers for the other 2 RSB's.
PNA: default 7070 (7071, 7072)
HTTP: 8082 (8083, 8084)
RSTP: default 554 (556 may be in use -- so 555, and 557)
Monitor: default 9090 (9091, 9092)
Admin: as is or you can modify to create a sequence for easy recollection: 
23430 (23431, 23432)

9. run the browser base admin interface to modify the settings to your 
liking (see configuration details below).

10. move the .lic and .bin files to another install location or remove when 
you are done (the binary is 15Mb).

11. Before installation of a second server, change the defaults for encoder 
(4040 to 4041) and pre-g (5050 to 5051) so you free the ports for other 
installations, otherwise it may choke on it. Repeat after installing the 
second server (4042, 5052), so again the ports are available for the third 
install.

That is all to it as the installation is concerned (of course, if you 
install only one RSB, than it is less hassle. I still recommend the ports 
changed, because 8080 and 8081 may be used by other wares).


The configuration gory details
=====================
The 3 RSB's do work each as a standalone server. Hence, you would be 
assigning sites to the servers. Say you plan to have about 100 sites on 
your 4r, and at present you have about 60. You can wait with the 3rd RSB 
till later and install just 2. Each would be assigned to handle 34 sites 
(not all sites would be likely to use RSB, in fact about one fifth max. 
would be a good estimate--so 6 sites would share 25 streams in this scenario.
You can discourage the bandwidth bottleneck by enabling the service for a 
fee. :-)

General setup:

Ports:
You have your ports already set from install, but if you want to change 
them, here is where.
It is better to keep a tap on admin privileges, so do not enable accesses 
for other admins unless you are threatened. :-)
Include HTTP port in URLs for cloaked users: Yes

Logging:
Leave as is, unless you want to get creative

IP Binding:
0.0.0.0  (enables whatever IP's are connected to mount point paths)

MIME Types: fine as is

Mount Points:
add something you can easily parse in a cgi app, like Mount point: /site2/ 
; Description: Domain_name ; Path: /home/sites/site2/web/realaudio/

What this translates to is:
a) site dir for the audio binaries is realaudio (you can call it whatever 
you like)
b) the url for the actual binary clip would 
be  www.domain.com:port#/site2/this_is_my_dog_barking.rm

Now, as far as things are, some browsers do not access the sound files 
directly. Netscape is one of 'em, but older IE do not either. So, for the 
sake of compatibility,
the binaries are accessed by an ascii file (pointer_to_my_dog_clip.ram). 
This file can be anywhere, provided that it points to the right binary clip.

Example of URL's to binary clips in the ascii pointer:

pnm://www.domain.com:[.rm_port]/[mount_point]/rafile.rm

or

http://www.domain.com:[.mp3_port]/[mount_point]/mp3file.mp3

Where [rm_port]=554 and [mp3_port]=8082 and [mount_point]=site2

It is possible to insert an additional information to the ascii audio file 
like :

pnm://www.domain.com:554/site2/blackmagicwoman.rm
Black Magic Woman|Santana|Strings Attached3|

or

http://www.domain.com:8082/site2/blackmagicwoman.mp3
Black Magic Woman|Santana|Strings Attached3|

and write a script that creates an audio file list 
(http://www.dahcliffstah.com/music/audio.shtml)

To distinguish between rm and mp3 files, I devised an extension mpa which 
is an ascii file for MP3 format and added this extension to the mime.types 
(/etc/httpd/conf) as audio/x-pn-realaudio		ram mpa

Thus my script parses both types in separate lists based on the extension.

There are other ways, of course, there can be only the .ram extension and 
the entry under the binary clip URL can specify the file type.

***********
Over&out