129 lines
2.5 KiB
HTML
129 lines
2.5 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of NFNL_OSF</TITLE>
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</HEAD><BODY>
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<H1>NFNL_OSF</H1>
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Section: iptables 1.8.4 (8)<BR>Updated: <BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<P>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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nfnl_osf - OS fingerprint loader utility
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<P>
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<BR>
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<B>nfnl_osf</B>
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<B>-f</B><I> fingerprints</I>
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[
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<B>-d</B>
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]
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<P>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>nfnl_osf</B>
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utility allows to load a set of operating system signatures into the kernel for
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later matching against using iptables'
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<B>osf</B>
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match.
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<P>
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<P>
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<DL COMPACT>
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<DT id="1"><B>-f</B><I> fingerprints</I>
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<DD>
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Read signatures from file
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<I>fingerprints</I>.
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<P>
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<DT id="2"><B>-d</B>
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<DD>
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Instead of adding the signatures from
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<I>fingerprints</I>
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into the kernel, remove them.
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<P>
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</DL>
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<A NAME="lbAF"> </A>
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<H2>EXIT STATUS</H2>
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Exit status is 0 if command succeeded, otherwise a negative return code
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indicates the type of error which happened:
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<P>
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<DL COMPACT>
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<DT id="3"><B>-1</B>
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<DD>
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Illegal arguments passed, fingerprints file not readable or failure in netlink
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communication.
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<P>
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<DT id="4"><B>-ENOENT</B>
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<DD>
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Fingerprints file not specified.
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<P>
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<DT id="5"><B>-EINVAL</B>
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<DD>
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Netlink handle initialization failed or fingerprints file format invalid.
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<P>
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</DL>
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<A NAME="lbAG"> </A>
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<H2>FILES</H2>
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<P>
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An up to date set of operating system signatures can be downloaded from
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<A HREF="http://www.openbsd.org/cgi-bin/cvsweb/src/etc/pf.os">http://www.openbsd.org/cgi-bin/cvsweb/src/etc/pf.os</A> .
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<P>
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<P>
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The description of
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<B>osf</B>
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match in
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<B><A HREF="/cgi-bin/man/man2html?8+iptables-extensions">iptables-extensions</A></B>(8)
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contains further information about the topic as well as example
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<B>nfnl_osf</B>
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invocations.
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="6"><A HREF="#lbAB">NAME</A><DD>
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<DT id="7"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="8"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="9"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="10"><A HREF="#lbAF">EXIT STATUS</A><DD>
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<DT id="11"><A HREF="#lbAG">FILES</A><DD>
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<DT id="12"><A HREF="#lbAH">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:14 GMT, March 31, 2021
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</BODY>
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</HTML>
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