# Configuring a Proxy Server to Perform Virus Definition Updates

You can configure a proxy server to perform virus definition updates.

## Procedure

1. To the Threat Scan server, add the additional settings as shown in the following table.

   For instructions about adding an additional setting from the CommCell Console, see Adding an Additional Setting from the CommCell Console.

   Additional Setting | Description | Category | Type | Value(s)
   --- | --- | --- | --- | ---
   sProxyHost | Specifies the proxy hostname. | ContentAnalyzer | String | Any
   sProxyPassword | Specifies the proxy password. | ContentAnalyzer | String | Any
   sProxyPort | Specifies the proxy port. | ContentAnalyzer | String | Any
   sProxyProtocol | Specifies the proxy protocol. | ContentAnalyzer | String | `http`, `socks5`, `socks4`, `socks4a`
   sProxyUsername | Specifies the proxy username. | ContentAnalyzer | String | Any
   sSystemProxy | Specifies if the proxy settings should be taken from the operating system proxy settings (for example, environment variables or Internet Explorer). | ContentAnalyzer | String | `False` (default), `True`

2. Restart all services.

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