1 This is used to set the security mark value associated with the 2 packet for use by security subsystems such as SELinux. It is 3 valid in the 4 .B security 5 table (for backwards compatibility with older kernels, it is also 6 valid in the 7 .B mangle 8 table). The mark is 32 bits wide. 9 .TP 10 \fB\-\-selctx\fP \fIsecurity_context\fP 11