# Optional ICAP Server

:::tip
**Admin and Forensic users only**

:::

The ‘secure groups’ concept utilised by SureDrop supports the Internet Content Adaptation Protocol (ICAP) integration.


:::info
ICAP is a lightweight HTTP-like protocol specified in RFC 3507 which is used to extend transparent proxy servers, thereby freeing up resources and standardizing the way in which new features are implemented. 

:::

Open the **Admin** functions and click on the *Virus Scanning* link.

Enter the necessary details into the fields relating to the Optional ICAP Server.

 ![](https://assets.suredrop.io/SureDrop-UserDocs-Images/SEN-SD-Admin-VirusScanning-ICAPServer.png)

After entering the information, click on the *Save* button.

 ![](https://assets.suredrop.io/SureDrop-UserDocs-Images/SEN-SureDrop-Admin-KeyServer-EnableKeyServer.png)

ICAP is generally used to implement virus scanning and content filters in transparent HTTP proxy caches. Content adaptation refers to performing the particular value-added service (content manipulation) for the associated client request/response. ICAP concentrates on leveraging edge-based devices (caching proxies) to help deliver value-added services. At the core of this process is a cache that will proxy all client transactions and will process them through web servers. These ICAP servers are focused on a specific function, for example, ad insertion, virus scanning, multi-AV scanning, content translation, language translation, or content filtering. Off-loading value-added services from web servers to ICAP servers allows those same web servers to be scaled according to raw HTTP throughput versus having to handle these extra tasks.

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**Documents**

- [Latest SureDrop Enhancements](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/latest-suredrop-enhancements-kcwScILzAM)
- [SureDrop Mobile App](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-mobile-app-PrQIsDuSKI)
- [Accessing SureDrop](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/accessing-suredrop-DyN9aMpI70)
- [Interface Languages](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/interface-languages-hVBopxYENt)
- [SureDrop Dashboard](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-dashboard-fTaQnSgtwV)
- [SureDrop Users](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-users-2ZPUhuPlKk)
- [SureDrop Groups](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-groups-OjqflZoTmQ)
- [SureDrop Properties Sidebar](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-properties-sidebar-tjOboaysYS)
- [SureDrop File Processing](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-file-processing-SSwfY7qTPa)
- [SureDrop Administration](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-administration-Idd3si2zZ3)
- [SureDrop Help and Support](https://outline.suredrop.io/s/c3c86a1c-0f2a-4dd2-8686-4b8aabd2629a/doc/suredrop-help-and-support-q3sCkieDW1)