The Internet Content Adaptation Protocol (ICAP) is a lightweight HTTP-like protocol specified in RFC which is used to extend transparent proxy servers . ICAP Errata: collection of RFC bugs. ICAP Partial Content Extension (html version) (Note to implementers: Please provide additional feedback to this. The ICAP server has a service running in Request Modification Mode (see section running in Response Modification Mode (see section of RFC ).

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Sign up or log in Sign up using Google. The following occurs if Step 3 returned a request: The new service now appears in the drop-down Service list. The ICAP server rfcc then send back a modified version of the request.

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The ICAP server counts the total number of available idle threads. Include formatting HTML for display on special devices, human language translation, virus checking, and so forth. Set the ICAP client to send these headers, if possible: You can only configure the profile column in this rule.

The maximum allowed number of server processes multiplied by The number of threads per a child process is the number of maximum concurrent connections that the ICAP server can handle. In Generaldo not select a protocol. In Hold modethe connections are blocked until emulation handling is complete. Verify that the scan is completed successfully and the file can be opened.

Zohar81 2, 1 8 Any other blades in a Threat Prevention profile are ignored. Background mode means that connections are allowed until emulation is complete. For more information and updates, see sk I’d like to prevent new connection in case the number of active threads exceeded a predefined maxval.


Continue after ICAP preview. My icap implementation uses python socketServer based on ThreadingMixIn class to handle each incoming connection. You can create a new ICAP service which runs on a port different than and select it. Beta Translate with Select a desired language below to translate this page. You can create a new profile and change the mode to Hold modeand apply the profile to the relevant gateways.

Configure the Advanced features. Any additional functionality, such as MD5 hash, URL reputation, and signature-based protection, is not supported. The remote host can allow, block, or modify the content.

Internet Content Adaptation Protocol (ICAP) Support

No modification is required. At the core of this process is a cache that will proxy all client transactions and will process them through web servers.

Is there any way to configure the squid server to recognize kcap error type? Internet protocols Application layer protocols. For example, ‘ you sent a request to view a page you are not allowed to see ‘.

This frees up resources and standardizes the way in which new features are implemented. Sends back an HTTP response to the request.

The gateway object window opens. Sign up using Email and Password.

File is Infected and non cleanable. For than reason, icap RFC defined response to notify the squid to retry file scanning, since it’s temporally overloaded. This is an ICAP proxy error. ICAP sends an error to the Client. I’ve got setup which contains the following devices: In the Threat Prevention default profiles basic, optimized and strictThreat Emulation is set to Background mode.


Test your ICAP rfcc with clean file: The ICAP server exceeded a maximum connection limit associated with this service. In the cluster User Interface under file system, anti-virus, detected threats, the file is listed as quarantined and the results rfd for the manual policy run and another result for the scan on open.

If this number is higher than the number configured in this field, it ends a child process. Views Read Edit View history. In addition, you can configure The iicap of threads per a child process. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. A connection must be established between the ICAP server and client.

ICAP Server

Rate this document 1 2 3 4 5 Best. ICAP connections do not survive cluster failover. Client requests for download files from the file server will go through the proxy, and it may decide to send the requested file to the icap server for analysis prior to forwarding them back rgc the client. Off-loading value-added services from web servers rcf ICAP servers allows those same web servers to be scaled according to raw HTTP throughput versus having to handle these extra tasks.