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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Background mode means that connections are allowed until emulation is complete. Stack Overflow works best with JavaScript enabled.

ICAP-Forum – ICAP Specification

A connection efc be established between the ICAP server and client. The following occurs if Step 3 returned a request: If this number is lower than the number configured in this field, it creates a new child process.

Test your ICAP clients with clean file: The remote host can allow, block, or modify the content. If this number is higher than the number configured in this field, it ends a child process. I’d like to prevent new connection in case the number of active threads exceeded a predefined maxval.


Verify that the scan is completed successfully and the file can be opened. You can select a different profile for each ICAP rule. However, the icap server scanning rate is smaller then network bandwidth, so in case of heavy traffic, it may by overloaded. The ICAP server supports dynamic scaling of the number of processes for optimal performance.

The surrogate sends the reply, from either the ICAP server or rfd origin server, to the client. How rc configure squid server to support icap error service ifap Ask Question. 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.

For a detailed explanation on how to configure a third party ICAP client, see your vendor’s documentation.

For than reason, icap RFC defined response to notify the squid to retry file scanning, rrc it’s temporally overloaded. Send back a modified version of the response. Sends back an HTTP response to the request. Here’s the exact definition:.

Internet Content Adaptation Protocol (ICAP) Support

Retrieved from ” https: ICAP version is not supported by server. ICAP Service not found.

The ICAP client sends the verdict to the client. The surrogate sends the request to the ICAP server. Summary VirusScan Enterprise for Storage VSES ensures that viruses and malware are rtc spread through remote shares, by scanning files that are copied to and from NAS devices that are used for file storage. Sign up using Email and Password.


ICAP Server

Start a new child process if the number of available threads is less than [x] – This option icqp dynamic growth and lets you configure the number of new threads as needed. The server executes its transformation service on messages and sends back responses to the client, usually with modified messages. Configure the Advanced features. Affected Products VirusScan Enterprise 8. For more information and rfcc, see sk In the cluster User Interface under file system, anti-virus, detected threats, the file is listed as quarantined and the results are for the manual policy run and another result for the scan on open.

The Threat Emulation checks the file: For a detailed explanation on the advanced service features, check the online help.