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Denial of Service Parameters

These parameters help protect against Denial of Service attacks.

Note:
WPB or WP indicates whether the parameter is used by the Web ProcessorBridge or the WebProcessor.

Denial of Service Parameter	Description	WPB or WP	Available
Callbacks
CallbacksAllowedUnitTime	See the description in MaxCallbacksAllowedPerUnitTime. Unit of time is seconds. Default: 1	WPB	4.0 SU 3 to present
CallbackStatusQueryDuration	A website visitor can query the status of a callback request. The initial status query is sent to the ACD server. To avoid processing overload, subsequent queries from the same website visitor are sent to a cache. After the time limit set by this parameter is reached, the cache is cleared and any subsequent query is sent to the ACD server. The unit of time for this parameter is seconds.	WP	4.0 SU 3 to present
CallbackStatusQueryIdleAbortDuration	This parameter works in tandem with CallbackStatusQueryDuration. If no callback status queries are received during the interval specified in this parameter, the cache is cleared. The unit of time for this parameter is seconds.	WP	4.0 SU 3 to present
MaxActiveCallbacksAllowed	The maximum total number of active callback requests allowed through WebProcessorBridge at any time. For example, if its value is 2500. WPB can create 2500 active callback requests. If 10 callback requests are disconnected, WPB can create another 10 callback requests.	WPB	4.0 SU 3 to present
MaxCallbacksAllowedPerUnitTime	MaxCallbacksAllowedPerUnitTime and CallbacksAllowedUnitTime together define the callback burst time. For example, if MaxCallbacksAllowedPerUnitTime = 5 and CallbacksAllowedUnitTime = 1, then no more than a burst of 5 callback requests per 1 second is allowed. Default: 5	WPB	4.0 SU 3 to present
Web Chats
ChatsAllowedUnitTime	See the description in MaxChatsAllowedPerUnitTime. Unit of time is seconds. Default: 1	WPB	4.0 SU 3 to present
MaxActiveChatsAllowed	The maximum total number of active web chats allowed through WebProcessorBridge at any point in time. For example, if its value is 2500. WPB can create 2500 active web chats. If 10 chats are disconnected, WPB can create another 10 web chats. This limitation doesn't apply to intercom chats.	WPB	4.0 SU 3 to present
MaxChatsAllowedPerUnitTime	MaxChatsAllowedPerUnitTime and ChatsAllowedUnitTime together define the chat burst time. For example, if MaxChatsAllowedPerUnitTime = 5 and ChatsAllowedUnitTime = 1, then no more than a burst of 5 chat requests per 1 second is allowed. Default: 5	WPB	4.0 SU 3 to present
Web Chats and Callbacks
InteractionsAllowedUnitTime	See the description in MaxInteractionsAllowedPerUnitTime. Unit of time is seconds. Default: 1	WPB	4.0 SU 3 to present
MaxActiveInteractionsAllowed	The maximum total number of active web chats or callbacks allowed through WebProcessorBridge at any time. The number applies independently to web chats and callbacks. This limitation doesn't apply to intercom chats. For example, if its value is 5000, WPB can create 5000 active web chats and 5000 callbacks. If 10 chats or callbacks are disconnected, WPB can create another 10 web chats or callbacks. Default: 1500 See also MaxActiveChatsAllowed and MaxActiveCallbacksAllowed.	WPB	4.0 GA to present
MaxAnonymousInteractionsAllowed	The maximum total number of active web chats or callback requests that anonymous users can create at any time. Default: 1500	WPB	4.0 GA to present
MaxAnyInteractionsAllowedPerQueue	The maximum total number of active chats and callback requests allowed on an ACD queue at any time. Note: WebProcessor adheres to this setting. This setting does not affect the number of active calls, emails, and faxes allowed on an ACD queue at any point in time. Default: 1500	WP	4.0 GA to present
MaxInteractionsAllowedPerUnitTime	MaxInteractionsAllowedPerUnitTime and InteractionsAllowedUnitTime together define the combined web chat and callback request burst time. For example, if MaxInteractionsAllowedPerUnitTime = 5 and InteractionAllowedUnitTime = 1, then no more than a burst of a total of 5 web chats and callback requests per 1 second is allowed. Default: 5 See also ChatsAllowedUnitTime and CallbacksAllowedUnitTime.	WPB	4.0 GA to present
MaxInteractionsAllowedPerUser	The maximum total number of active web interactions (chats or callbacks) an Interaction Tracker registered user can create at any time. Default: 5	WPB	4.0 GA to present
MaxInteractionsAllowedPerIP	The maximum total number of active web chats/callbacks website visitors can create from one IP address at any time. Default: 15	WPB	4.0 GA to present
TrustedHosts	You can supply the IP addresses or host names of trusted hosts. Website visitors can create unlimited chats or callbacks from these trusted IPs or hosts. The MaxInteractionsAllowedPerIP limit does not apply to trusted hosts. However, other limits on interactions still apply. Use commas to delimit multiple IP addresses or hosts.	WPB	4.0 SU 3 to present