INET: socket monitoring interface

modulename: inet_diag.ko

configname: CONFIG_INET_DIAG

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>INET: socket monitoring interface
In linux kernel since version 2.6.14 (release Date: 2005-10-27)  
Support for INET (TCP, DCCP, etc) socket monitoring interface used by
native Linux tools such as ss. ss is included in iproute2, currently
downloadable at:

http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2

If unsure, say Y.

source code: