SELinux Timeline 1985:LOCK (early Type Enforcement) 1990: DTMach/DTOS 1995: Utah Fluke /Flask 1999:2.2 Linux Kernel (patch) 2000: 2001:2.4 Linux Kernel (patch) 2002: LSM 2003:2.6 Linux Kernel (mainline) 2006: Full network labeling Present 嵌入式系统实验室 EMBEDDED SYSTEM LABORATORY SUZHOU INSTITUTE FON ADVANCED STUDY OF USTCSELinux Timeline 1985: LOCK (early Type Enforcement) 1990: DTMach / DTOS 1995: Utah Fluke / Flask 1999: 2.2 Linux Kernel (patch) 2000: 2001: 2.4 Linux Kernel (patch) 2002: LSM 2003: 2.6 Linux Kernel (mainline) 2006: Full network labeling Present