NFNL_OSF

Section: iptables 1.8.2 (8)
Updated:
Page Index

 

NAME

nfnl_osf - OS fingerprint loader utility  

SYNOPSIS


nfnl_osf -f fingerprints [ -d ]

 

DESCRIPTION

The nfnl_osf utility allows to load a set of operating system signatures into the kernel for later matching against using iptables' osf match.

 

OPTIONS

-f fingerprints
Read signatures from file fingerprints.

-d
Instead of adding the signatures from fingerprints into the kernel, remove them.

 

EXIT STATUS

Exit status is 0 if command succeeded, otherwise a negative return code indicates the type of error which happened:

-1
Illegal arguments passed, fingerprints file not readable or failure in netlink communication.

-ENOENT
Fingerprints file not specified.

-EINVAL
Netlink handle initialization failed or fingerprints file format invalid.

 

FILES

An up to date set of operating system signatures can be downloaded from http://www.openbsd.org/cgi-bin/cvsweb/src/etc/pf.os .

 

SEE ALSO

The description of osf match in iptables-extensions(8) contains further information about the topic as well as example nfnl_osf invocations.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXIT STATUS
FILES
SEE ALSO
LinuxReviews : manual page archive : man8