内部网络的安全现状 为了保护内部的资源、业务数据和保证网络正常运行,在我国,单位通常将内部网络与外部网络物理隔离。内部网络专门用于内部业务工作,流动和保存着大量重要的数据。 一般情况下,内部网络不允许上网也不提供上网环境。对于允许上网的内部网络,通常有完备的防护措施。最基础的防护是防火墙,内部主机上网必须通过网关总出口,防火墙架设在网关上,可以抵御来自外部的攻击,保护上网安全。入侵检测则守候在内网中,监视网 Internal network security status In order to protect the internal resources, business data and ensure the normal operation of the network, in our country, the unit usually physical network and external network physical isolation. The internal network is devoted to internal business operations, flowing and storing a large amount of important data. Under normal circumstances, the internal network does not allow Internet access nor the Internet environment. For the internal networks that allow Internet access, there is usually a comprehensive protection. The most basic protection is the firewall, the internal host must go through the gateway to the Internet total exit, the firewall erected on the gateway, you can resist attacks from the outside to protect Internet access security. Intrusion detection is waiting in the network, monitoring network