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Murmur supports remote scripting using ZeroC ICE, a RPC mechanism. There are bindings for C++, Java, .NET, Python, PHP and Ruby, and this is supported on all our platforms (Win32, Linux and OSX). ICE also works over a network, meaning you can create a web application that interfaces with a murmur process running on another machine.

Getting ready to use ICE

You can download ICE directly from ZeroC. If you installed a binary version of Murmur, it already includes the necessary components for running ICE, but you might need additional tools to develop with it.

To enable ICE in your murmur.ini configuration file first comment out


to disable dbus and add

ice="tcp -h -p 6502"

to enable ICE for localhost on port 6502.

To check if ICE in fact does listen, type

netstat -apn | grep 6502

Apache and PHP

If you want to use ICE from PHP, you'll have to add the extension to php and tell php where to find the file.

To add the IcePHP extension to php, first check that the file for linux, or php_ice.dll for windows is in your php extensions folder specified in your php.ini as

extension_dir = /usr/lib/php5/extensions

If it is not, get the correspoding files from ZeroCs downloads page.

Then either in your php.ini file or in your /etc/php.d or /etc/php5/conf.d folder in ice.ini, add the line

At least the linux rpms will do this automatically, so check that you're not doing it a second time.

Second, you have to tell the PHP parser where to find the slice (Specification Language for ICE) file. Add

ice.slice = /path/to/

to your php.ini or other config file (ice.ini).


If you encounter problems, check your apache log.

If it tells you the php extension was compiled on an older api, you have to compile the from source.

Download Ice-3.3.0.tar.gz from ZeroCs downloads page, untar, cd, cd into php, as written in the INSTALL file export ICE_HOME environment variable pointing to your ice install dir. If you installed it with an rpm, type

export ICE_HOME=/usr

then make, and in the lib folder, there'll be your file.

Using ICE

How to use ICE differs from language to language. The parameters and method names will remain the same, but the syntax will naturally be different. Murmur will, by default, open up an adapter on port 6502 (or 10000 for homedir installs), which has a single accessible object named "Meta". This is the Meta server, and from it you can retrieve adapters for any configured server.

There's an example included in the source; have a look at icedemo.php.

The ice interface is fully documented, and you can browse the generated documentation.

How to set up a Debian web server and use the ICE php scripts

These are example scripts. Use at your own risk. These scripts are not intended for production machines. These are examples of what ICE can do.

This guide is for debian lenny (upgraded to date 25.10.2008)

1st STEP: DOWNLOAD, UNPACK, SET Static Linux Mumble Server: 1.1.6 (Stable)



install bzip2:

apt-get install bzip2


tar -jxvf murmur-static_x86-1.1.6.tar.bz2

go to murmur folder:

cd murmur-static_x86-1.1.6

enable ice (disable dbus):

nano murmur.ini

uncomment: #ice="tcp -h -p 6502" >>> ice="tcp -h -p 6502" (dbus=session >>> #dbus=session)

save it by Ctrl+O close it by Ctrl+X

make murmur.x86 executable:

chmod +x ./murmur.x86

2nd STEP: INSTALL Apache/PHP5 (maybe some steps are not necessary, but I did these) copied from:

1. install Apache:

apt-get install apache2 apache2-doc apache2-mpm-prefork apache2-utils libexpat1 ssl-cert

2. install PHP5:

You will be asked the following question:

Continue installing libc-client without Maildir support? <-- Yes

apt-get install libapache2-mod-php5 php5 php5-common php5-curl php5-dev php5-gd php5-idn php-pear php5-imagick php5-imap php5-json php5-mcrypt php5-memcache php5-mhash php5-ming php5-mysql php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl

Next we edit /etc/apache2/mods-available/dir.conf:

nano /etc/apache2/mods-available/dir.conf

and change the DirectoryIndex line:

<IfModule mod_dir.c>
DirectoryIndex index.html index.htm index.shtml index.cgi index.php index.php3 index.xhtml

Edit /etc/apache2/ports.conf and add Listen 443:

nano /etc/apache2/ports.conf

Listen 80
Listen 443

Now we have to enable some Apache modules (SSL, rewrite, suexec, and include):

a2enmod ssl
a2enmod rewrite
a2enmod suexec
a2enmod include

Reload the Apache configuration:

/etc/init.d/apache2 force-reload


apt-get install zeroc-ice

You will be asked to install zeroc-ice32 <-- Yes

(It should install php-zeroc-ice too)

Edit php.ini file:

nano /etc/php5/apache2/php.ini

add somewhere: ice.slice = /path/to/

Restart Apache:

/etc/init.d/apache2 restart

4th STEP: COPY php files to DocumentRoot of webserver (default: /var/www)

copy "icedemo.php" and "weblist.php" from murmur folder to /var/www

5th STEP: Start murmur

run server from murmur folder:


--reDnout 22:37, 25 October 2008 (UTC)

How to set up a Windows web server and use the ICE php scripts

These are example scripts. Use at your own risk. These scripts are not intended for production machines. These are examples of what ICE can do.

First install Apache. Install it to C:\apache\.

Now install PHP. Tell PHP to install to C:\PHP5\. In the installer on the "Web Server Setup" window select Apache 2.2.x Module. When you get to "Select Apache Configuration Directory" put C:\apache\conf\. Proceed through the installer. Install the defaults, you do not need to install the extensions for PHP.

Now install ICE. Go to C:\Ice-3.3.0-VC60\bin\ and copy


to C:\apache\bin . Now open C:\PHP5\php.ini and add the following two lines to the bottom of the file:


Now save and exit php.ini.

After you have done all that, download, icedemo.php, and weblist.php (Click the links, and on the Sourceforge page right click on "(download)" and select "Save Link As...".) Put in C:\PHP5. Put icedemo.php and weblist.php in C:\apache\htdocs.

Double click the Apache icon in the system tray and select "Restart".

You now need at least one running Murmur server. Go to C:\Program Files\Mumble and double click murmur.exe and the server will start.

You should now be able to go to http://<your IP or Domain>/icedemo.php (or weblist.php).

Using Glacier2

Glacier2 is a ICE routing and firewall utility, and allows you to securely run the server on one machine and murmur on another. Note that if both server and client are on a secure LAN, you can just use iptables to protect the ICE port, which is a lot easier than setting up Glacier2.

The examples here assume that is the public IP address of the server running Murmur. We're going to use the username "magic" with the password "pink".

Configuring Glacier2

Create a config file called config.glacier2 and put the following in it:

 Glacier2.Client.Endpoints=tcp -h -p 4063

Then, create a password hash using the openssl utility.

 openssl passwd pink

this will spit out a hash, which looks something like CTThafhdv9Lz2

Create a file called password.txt containing:

 magic CTThafhdv9Lz2

Start glacier2 as this:

 glacier2router --Ice.Config=config.glacier2

Configuring Murmur

There's nothing to do in murmur. Seriously. Leave the default setting of binding to alone.

Configuring Client (PHP)

This is where it starts getting slightly ugly. Note that this requires ICE >= 3.3.1, as Ice 3.3.0 has a bug in it which prevents this from working. The following is the adaptation necessary to weblist.php to get it to work:

try {
  $router = $ICE->stringToProxy("Glacier2/router:tcp -p 4063 -h");
  $router = $router->ice_uncheckedCast("::Glacier2::Router")->ice_router(null);
  $session = $router->createSession("magic", "pink");
  $base = $ICE->stringToProxy("Meta:tcp -h -p 6502")->ice_router($router);
  $meta = $base->ice_checkedCast("::Murmur::Meta")->ice_router($router);


For each object you get a proxy to (including the return from $meta->getServer), you need to add ->ice_router($router)