Netfilter nf_tables passive OS fingerprint support
modulename: nft_osf.ko
configname: CONFIG_NFT_OSF
Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Netfilter nf_tables passive OS fingerprint support
In linux kernel since version 4.2 (release Date: 2015-08-30)
This option allows matching packets from an specific OS.