<p>This section contains server level settings that, in general, do not need to be changed. Only modify this section if you are know what you are doing.
Total number of concurrent clients supported by the server. Listeners are considered clients, but so is accesses to any static content (i.e. fileserved content) and also any requests to gather stats. These are max *concurrent* connections for the entire server (not per mountpoint).
This is the number of threads that are started to handle client connections. You may need to increase this value if you are running a high traffic stream. This recommended value is for a small to medium traffic server.
This is the maximum size (in bytes) of a client (listener) queue. A listener may temporarily lag behind due to network congestion and in this case an internal queue is maintained for each listener. If the queue grows larger than this config value, then the listener will be removed from the stream.
The maximum time (in seconds) to wait for a request to come in once the client has made a connection to the server. In general this value should not need to be tweaked.
With this enabled, a connecting client will be sent a burst of audio data from the stream. This will have the effect of reducing the startup time for the stream from the perspective of the listener. This is due to the fact that most media players have local buffers that must be filled before the stream begins to play. This may introduce a small latency in the stream (difference in time between when the source plays a clip and the listener hears a clip). If this latency is important to you, then you can disable this feature. The latency is bitrate-dependent, but as an example, for a 128kbps stream, the latency between the source and the player is ~ 1.5 secs WITHOUT burst on connect, and WITH burst on connect the latency is 3 secs.
The unencrypted password used by sources to connect to icecast2. Currently, the username for all source connections must be 'source'. This is likely to change in the future.
The username/password used for all administration functions. This includes retrieving statistics, accessing the web-based administration screens, etc. A list of these functions can be found in the "Administration" section of the manual.
<p>This section contains all the settings for listing a stream on any of the Icecast2 YP Directory servers. Multiple occurances of this section can be specified in order to be listed on multiple directory servers.
This value is the maximum time icecast2 will wait for a response from a particular directory server. The recommended value should be sufficient for most directory servers.
<p>This section contains miscellaneous server settings. Note that multiple listen-socket sections may be configured in order to have icecast2 listen on multiple network interfaces. If a bind-address is not specified for a particular listen-socket, then the hostname parameter will be used to specify the address that will be bound.
This optional flag will indicate that this port will operate in 'shoutcast-compatibility' mode. Due to major differences in the source client connection protocol, if you wish to use any of the shoutcast DJ tools, you will need to configure at least one socket as shoutcast-compatible. Note that when in this mode, only source clients (and specifically shoutcast source clients) will be able to attach to this port. All listeners may connect to any of the ports defined without this flag. Also, for proper Shoutcast DSP compatibility, you must define a listen socket with a port one less than the one defined as 'shoutcast-compat'. This means if you define 8001 as shoutcast-compat, then you will need to define a listen port of 8000 and it must not also be defined as shoutcast-compat. See the example config file is the distribution for more info.
This flag turns on the icecast2 fileserver from which static files can be served. All files are served relative to the path specified in the <paths><webroot> configuration setting.
<p>This section contains the server's relay settings. There are two types of relays: a "Master server relay" or a "Specific Mountpoint relay." A Master server relay is only supported between icecast2 servers and is used to relays all mountpoints on a remote icecast2 server.
The following diagram shows the basics of doing a Master relay. Note that Server 1 is configured with the <master-server>, <master-server-port>, etc settings and Server 2 is the server from which Server 1 will pull all attached mountpoints and relay them. Using a Master Server relay, ALL mountpoints on Server 2 will be relayed. If only specific mountpoints need to be relayed, then you must configure Server 1 as a "Specific Mountpoint Relay". Both Master server relays and Specific Mountpoint relays begin their "relaying" when the Server is started.
A server is configured as a Master Server relay by specifying the <master-server>, <master-server-port>,<master-update-interval>,<master-password> values in the config file. The server that is being relayed does not need any special configuration.
The following diagram shows the basics of doing a Specific Mountpoint relay. Note that Server 1 is configured with the <relay> settings and Server 2 is the server from which Server 1 will pull the specified mountpoint(s) and relay them. Using a Specific Mountpoint Relay, only those mountpoints specified on Server 1 will be relayed from Server 2.
Specific Mountpoint Relays can be configured to relay from an Icecast 2 server, as well as Icecast 1.x and Shoutcast.
A server is configured as a Specific Mountpoint Server relay by specifying a <relay> XML chunk in the config file for each mountpoint to be relayed. The server that is being relayed does not need any special configuration.
If you are relaying a Shoutcast stream, you need to specify this indicator to also relay the metadata (song titles) that is part of the Shoutcast stream (1=enabled, 0=disabled).
<p>This section contains settings which apply only to a specific mountpoint. Within this section you can reserve a specific mountpoint and set a source username/password for that mountpoint (not yet implemented) as well as specify individual settings which will apply only to the supplied mountpoint.
This specifies that the named mount point will require listener authentication. Currently, we only support a file-based authentication scheme (type=htpasswd). Users and encrypted password are placed in this file (separated by a :) and all requests for this mountpoint will require that a user and password be supplied for authentication purposes. These values are passed in via normal HTTP Basic Authentication means (i.e. http://user:password@stream:port/mountpoint.ogg). Users and Passwords are maintained via the web admin interface. A mountpoint configured with an authenticator will display a red key next to the mount point name on the admin screens. You can read more about listener authentication <ahref="icecast2_listenerauth.html">here</a>.
This path is used in conjunction with the chroot settings, and specified the base directory that is chrooted to when the server is started. This feature is not supported on win32.
This pathname specifies the file to write at startup and to remove at normal shutdown. The file contains the process id of the icecast process. This could be read and used for sending signals icecast.
This path specifies the base directory used for all static file requests. This directory can contain all standard file types (including mp3s and ogg vorbis files). For example, if webroot is set to /var/share/icecast2, and a request for http://server:port/mp3/stuff.mp3 comes in, then the file /var/share/icecast2/mp3/stuff.mp3 will be served.
This path specifies the base directory used for all admin requests. More specifically, this is used to hold the XSLT scripts used for the web-based admin interface. The admin directory contained within the icecast distribution contains these files.
<p>This section contains information relating to logging within icecast. There are two logfiles currently generated by icecast, an error.log (where all log messages are placed) and an access.log (where all stream/admin/http requests are logged).
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<p>Note that on non-win32 platforms, a HUP signal can be sent to icecast in which the log files are re-opened for appending giving the ability move/remove the log files.
All icecast generated log messages will be written to this file. If the loglevel is set too high (Debug for instance) then this file can grow fairly large over time. Currently, there is no log-rotation implemented.
Indicates what messages are logged by icecast. Log messages are categorized into one of 4 types, Debug, Info, Warn, and Error.<br/><br/>The following mapping can be used to set the appropraite value :
<p>This section contains configuration settings that can be used to secure the icecast server by performing a chroot to a secured location. This is currently not supported on win32.
An indicator which specifies whether a chroot() will be done when the server is started. The chrooted path is specified by the <basedir> configuration value.
