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<HTML><HEAD><TITLE>flow-mask</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.73"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><H1><ANAME="AEN1"><SPANCLASS="APPLICATION">flow-mask</SPAN></A></H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN6"></A><H2>Name</H2><SPANCLASS="APPLICATION">flow-mask</SPAN> -- Apply tags to flow files.</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN10"></A><H2>Synopsis</H2><P><BCLASS="COMMAND">flow-mask</B> [-hk] [-b<TTCLASS="REPLACEABLE"><I> big</I></TT>|<TTCLASS="REPLACEABLE"><I>little</I></TT>] [-C<TTCLASS="REPLACEABLE"><I> comment</I></TT>] [-d<TTCLASS="REPLACEABLE"><I> debug_level</I></TT>] [-m<TTCLASS="REPLACEABLE"><I> mask_fname</I></TT>] [-M<TTCLASS="REPLACEABLE"><I> active_def</I></TT>...]</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN25"></A><H2>DESCRIPTION</H2><P>The <BCLASS="COMMAND">flow-mask</B> utility is used to modify thesource and destination mask length's in flow records.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN29"></A><H2>OPTIONS</H2><P></P><DIVCLASS="VARIABLELIST"><DL><DT>-b<TTCLASS="REPLACEABLE"><I> big</I></TT>|<TTCLASS="REPLACEABLE"><I>little</I></TT></DT><DD><P>Byte order of output.</P></DD><DT>-C<TTCLASS="REPLACEABLE"><I> Comment</I></TT></DT><DD><P>Add a comment.</P></DD><DT>-d<TTCLASS="REPLACEABLE"><I> debug_level</I></TT></DT><DD><P>Enable debugging.</P></DD><DT>-h</DT><DD><P>Display help.</P></DD><DT>-k</DT><DD><P>Keep time from input.</P></DD><DT>-m<TTCLASS="REPLACEABLE"><I> mask_fname</I></TT></DT><DD><P>Load masks from <TTCLASS="FILENAME">mask_name</TT>. Defaults to <TTCLASS="FILENAME">@localstatedir@/cfg/mask</TT></P></DD><DT>-M<TTCLASS="REPLACEABLE"><I> mask_def</I></TT></DT><DD><P>Use <TTCLASS="REPLACEABLE"><I>active_def</I></TT> as the active tag definition(s).</P></DD></DL></DIV><P></P><P>The configuration file is a collection of definitions. A definitionlists a sequence of prefixes and the mask length to replace the matchingprefix with.Lines begining with # are treated as comments and ignored.</P><P><PRECLASS="SCREEN">mask-definition command Description----------------------------------------------------------------------mask-definition Begin mask-definition section mask-definition fooprefix List the prefix to match on and the replacement mask. prefix 128.146/16 24 </PRE></P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN73"></A><H2>EXAMPLES</H2><DIVCLASS="INFORMALEXAMPLE"><ANAME="AEN75"></A><P></P><PRECLASS="PROGRAMLISTING">##file: masks#mask-definition foo# All networks in 128.146/16 are /24's. prefix 128.146/16 24# except for 128.146.214/24, which are /32's. prefix 128.146.214/24 32</PRE><P><BCLASS="COMMAND">flow-cat <TTCLASS="FILENAME">flows</TT> | flow-mask -mfoo -Fmasks | flow-print -f4</B></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN80"></A><H2>BUGS</H2><P>None known.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN83"></A><H2>AUTHOR</H2><P>Mark Fullmer<TTCLASS="EMAIL"><<AHREF="mailto:maf@splintered.net">maf@splintered.net</A>></TT></P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN90"></A><H2>SEE ALSO</H2><P><SPANCLASS="APPLICATION">flow-tools</SPAN>(1)</P></DIV></BODY></HTML>⌨️ 快捷键说明
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