There
are some cases where We have see "Cant Identify Protocol"
Messages when we were checking the File Descriptors during testing.
This seems to be not an Error since lsof works in that way
Losf
works by binding /proc/<PID>/fd with /proc/net/<protocols>.So
what ever the address types available in /proc/net/<protocols>
they will be shown when we use the lsof command.
So
the Cant identify protocol is just protocol family which is not
defined in this file and lsof cant find any info regarding them.
Hence the "cant Identify" Message.
The
available Protocols are when I check my installations are
HIDP
L2CAP
HCI
RAWv6
UDPv6
TCPv6
PACKET
UNIX
RAW
UDP
TCP
NETLINK
More
To Come , Happy learning :-)
