For example, if you send a file containing a valid CCN, the DLP server will flag it and return a denied message to EFT. On a DLP server, you can define rules to search files for SSNs or CCNs. Typically, the adapted messages are either HTTP requests or HTTP responses. The server executes its transformation service on messages and sends back responses to the client, usually with modified messages. It allows ICAP clients to pass HTTP messages to ICAP servers for some sort of transformation or other processing ("adaptation"). ICAP is, in essence, a lightweight protocol for executing a "remote procedure call" on HTTP messages. The Internet Content Adaptation Protocol (ICAP) is an HTTP-like protocol that is used for virus scanning and content filtering. Antivirus servers scan the files for viruses and return a response to EFT whether a virus was found or not. Users can configure rules on a DLP server to send a reply to EFT with access denied if the file contains social security numbers (SSNs) or credit card numbers (CCNs), for example. Sending Files to an Antivirus or DLP Server Sending Files to an Antivirus or DLP ServerĮFT, through the Event Rules, acts as an ICAP client, sending files to antivirus or data leak prevention (DLP) servers that detect file pass/fail based upon user-defined rules.
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