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- 2018-09-17动环与监控Technical analysisChina
保护关键基础设施老旧工业控制系统安全的3种技术方法
- 通过协议异常检测或深度包检测(DPI)防火墙过滤深层协议消息，仅放行必要合规流量，降低直接给PLC、RTU等终端打补丁带来的停机风险
- 采用IPSec VPN隧道对不安全通信信道进行强加密以防中间人攻击；对Modbus等串行遗留设备，通过边界终端服务器转换并加密接入IP网络
- 部署覆盖IP与串行非IP通信的持续资产发现与监控系统，近实时识别未授权新增设备，并对照IEC 62443等工业安全标准开展合规审计
Sources中国IDC圈·安全监控dc.idcquan.com
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