A good firewall will maximize operating system security by proactively disabling unnecessary and potentially dangerous protocols and services.But no firewall can make up for a poorly installed and configured operating system or network service.

• 通过预防性地切断不必要的和潜在危险的协议和服务，好的防火墙将最大程度地提高操作系统安全性，但是防火墙不能弥补安装和配置很差的操作系统或网络服务。