Which Control Panel utility should a technician use to configure a proxy server on Windows workstations?

The option to configure a proxy server is found within the Internet Options utility in the Connections tab. This section specifically deals with network connections, where users can set up, modify, or disable proxy server settings for internet access.

When a technician navigates to the Connections tab within Internet Options, they will see options such as "LAN settings," which allow them to enter the addresses for the proxy servers and adjust how the workstation connects to them. This is critical for environments requiring filtered internet access or for enhancing security by controlling web traffic through a proxy.

The other sections of Internet Options focus on different aspects: the Advanced tab is for advanced browser settings, the Security tab deals with security zones and settings for internet safety, and the Content tab focuses on content-related settings like filtering and certificates. Thus, they are not relevant for configuring a proxy server.