You must have experience working with the proxy server's operating system.
You must have administrative permissions.
Use the sensor getproxysettings command to verify the current proxy client settings:
Windows: Change into the sensor cli sub-directory and run
getproxysettings.batLinux: Change into the sensor cli sub-directory and run
./getproxysettings.shDocker: Use the above Linux command if running from an interactive shell, or else run
docker exec -it <container-id/name> <sensor-install-path>/cli/getproxysettings.sh
Save the settings in a separate file for future reference.