diff --git a/slides/ietf-89/Makefile b/slides/ietf-89/Makefile
new file mode 100644
index 0000000..605efe1
--- /dev/null
+++ b/slides/ietf-89/Makefile
@@ -0,0 +1,12 @@
+all: pdns-dulaunoy-kaplan-passive-dns-cof
+
+pdns-dulaunoy-kaplan-passive-dns-cof: 	pdns-dulaunoy-kaplan-passive-dns-cof.tex
+	pdflatex pdns-dulaunoy-kaplan-passive-dns-cof.tex
+
+clean:
+	rm -f pdns-dulaunoy-kaplan-passive-dns-cof.log pdns-dulaunoy-kaplan-passive-dns-cof.out \
+		pdns-dulaunoy-kaplan-passive-dns-cof.vrb pdns-dulaunoy-kaplan-passive-dns-cof.toc \
+		pdns-dulaunoy-kaplan-passive-dns-cof.snm pdns-dulaunoy-kaplan-passive-dns-cof.pdf \
+		pdns-dulaunoy-kaplan-passive-dns-cof.nav pdns-dulaunoy-kaplan-passive-dns-cof.aux \
+		content.aux content.log \
+		pdns-dulaunoy-kaplan-passive-dns-cof.pdf
diff --git a/slides/ietf-89/beamercolorthemechameleon.sty b/slides/ietf-89/beamercolorthemechameleon.sty
new file mode 100644
index 0000000..27e4562
--- /dev/null
+++ b/slides/ietf-89/beamercolorthemechameleon.sty
@@ -0,0 +1,30 @@
+% Copyright 2007 by Marco Barisione
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+
+\mode<presentation>
+
+%\definecolor{chameleongreen1}{RGB}{129,138,143} %grey CIRCL
+\definecolor{chameleongreen1}{RGB}{213,43,30}
+\definecolor{chameleongreen2}{RGB}{213,43,30}   %red CIRCL
+\definecolor{chameleongreen3}{RGB}{30,30,30}    %black CIRCL
+\definecolor{chameleongreen4}{RGB}{129,138,143}
+
+\setbeamercolor*{palette primary}{fg=white,bg=chameleongreen2}
+\setbeamercolor*{palette secondary}{fg=white,bg=chameleongreen3}
+\setbeamercolor*{palette tertiary}{fg=white,bg=chameleongreen4}
+\setbeamercolor*{palette quaternary}{fg=white,bg=chameleongreen1}
+
+\setbeamercolor*{titlelike}{bg=chameleongreen3}
+\setbeamercolor*{frametitle}{bg=black,fg=black}
+\setbeamercolor*{part title}{bg=black,fg=black}
+\setbeamercolor*{item}{fg=chameleongreen3}
+
+\setbeamercolor*{separation line}{}
+\setbeamercolor*{fine separation line}{}
+
+\mode
+<all>
diff --git a/slides/ietf-89/beamerinnerthemefancy.sty b/slides/ietf-89/beamerinnerthemefancy.sty
new file mode 100644
index 0000000..d71473b
--- /dev/null
+++ b/slides/ietf-89/beamerinnerthemefancy.sty
@@ -0,0 +1,183 @@
+% Copyright 2007 by Marco Barisione
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+
+\mode<presentation>
+
+% Use alternative title page style.
+\DeclareOptionBeamer{alternativetitlepage}[true]{\def\beamer@fancy@alternativetitlepage{#1}}
+
+% Logo to use in the alternative title page.
+\def\beamer@fancy@titlepagelogo{}
+\DeclareOptionBeamer{titlepagelogo}{\def\beamer@fancy@titlepagelogo{#1}}
+
+% Bullet shape.
+\DeclareOptionBeamer{bullet}{\def\beamer@fancy@bullet{#1}}
+
+\ExecuteOptionsBeamer{alternativetitlepage=false,bullet=square}
+\ProcessOptionsBeamer
+
+% Colors.
+\setbeamercolor*{lineup}{parent=palette primary}
+\setbeamercolor*{linemid}{parent=palette secondary}
+\setbeamercolor*{linebottom}{parent=palette tertiary}
+\setbeamercolor*{title page header}{parent=palette quaternary}
+
+% Lengths.
+\newlength{\beamer@fancy@lineup}
+\setlength{\beamer@fancy@lineup}{.025\paperheight}
+\newlength{\beamer@fancy@linemid}
+\setlength{\beamer@fancy@linemid}{.015\paperheight}
+\newlength{\beamer@fancy@linebottom}
+\setlength{\beamer@fancy@linebottom}{.01\paperheight}
+
+% Margins.
+\newlength{\beamer@fancy@normalmargin}
+\setlength{\beamer@fancy@normalmargin}{.06\paperwidth}
+\setbeamersize{text margin left=\beamer@fancy@normalmargin}
+\setbeamersize{text margin right=\beamer@fancy@normalmargin}
+\setlength\leftmargini{.6\beamer@fancy@normalmargin}
+\setlength\leftmarginii{.6\beamer@fancy@normalmargin}
+\setlength\leftmarginiii{.6\beamer@fancy@normalmargin}
+
+% Normal title page.
+\defbeamertemplate*{title page normal}{fancy theme}[1][]
+{
+  \vbox{}
+  \vfill
+  \begin{centering}
+    \begin{beamercolorbox}[wd=\paperwidth,sep=8pt,center,#1]{title page header}
+      \usebeamerfont{title}\inserttitle\par%
+      \ifx\insertsubtitle\@empty%
+      \else%
+        \vskip0.25em%
+        {\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par}%
+      \fi%     
+    \end{beamercolorbox}%
+    \vskip1em\par
+    \begin{beamercolorbox}[sep=8pt,center,#1]{author}
+      \usebeamerfont{author}\insertauthor
+    \end{beamercolorbox}
+    \begin{beamercolorbox}[sep=8pt,center,#1]{institute}
+      \usebeamerfont{institute}\insertinstitute
+    \end{beamercolorbox}
+    \begin{beamercolorbox}[sep=8pt,center,#1]{date}
+      \usebeamerfont{date}\insertdate
+    \end{beamercolorbox}\vskip0.5em
+    {\usebeamercolor[fg]{titlegraphic}\inserttitlegraphic\par}
+  \end{centering}
+  \vfill
+}
+
+% Alternative title page, you should use this in a frame with the [plain]
+% option.
+\defbeamertemplate*{title page alternative}{fancy theme}[1][]
+{
+  {\parskip0pt\offinterlineskip%
+  \hbox{\hskip-\Gm@lmargin\hbox{\vbox{%
+  \@tempdima=\textwidth\textwidth=\paperwidth\hsize=\textwidth\def\\{,}\vbox{}\vskip-1.5ex%
+    % Title.
+    \begin{beamercolorbox}[wd=\paperwidth,ht=.4\paperheight,center,#1]{title page header}
+      \usebeamerfont{title}\inserttitle\par%
+      \ifx\insertsubtitle\@empty%
+      \else%
+        \vskip0.25em%
+        {\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par}%
+      \fi%     
+      \vspace{.125\paperheight}%
+    \end{beamercolorbox}%
+    \vbox{}\vskip-\beamer@fancy@lineup%
+    \vbox{}\vskip-\beamer@fancy@linemid%
+    % First line.
+    \hbox{%
+    \begin{beamercolorbox}[wd=.2\paperwidth,ht=\beamer@fancy@lineup,dp=0pt]{}%
+    \end{beamercolorbox}%
+    \begin{beamercolorbox}[wd=.8\paperwidth,ht=\beamer@fancy@lineup,dp=0pt]{lineup}%
+    \end{beamercolorbox}%
+    }%
+    \vbox{}\vskip0ex%
+    % Second line.
+    \hbox{%
+    \begin{beamercolorbox}[wd=.1\paperwidth,ht=\beamer@fancy@linemid,dp=0pt]{}%
+    \end{beamercolorbox}%
+    \begin{beamercolorbox}[wd=.9\paperwidth,ht=\beamer@fancy@linemid,dp=0pt]{linemid}%
+    \end{beamercolorbox}%
+    }%
+    % Third line.
+    \hbox{%
+    \begin{beamercolorbox}[wd=.5\paperwidth,ht=\beamer@fancy@linebottom,dp=0pt]{}%
+    \end{beamercolorbox}%
+    \begin{beamercolorbox}[wd=.5\paperwidth,ht=\beamer@fancy@linebottom,dp=0pt]{linebottom}%
+    \end{beamercolorbox}%
+    }%
+    \vskip0pt%
+  }}%
+  \hskip-\Gm@rmargin%
+  }}\hfil%
+  %
+  \begin{columns}
+      \ifx\beamer@fancy@titlepagelogo\@empty%
+          \column{\textwidth}
+      \else
+          \column{.5\textwidth}
+              % Logo.
+              \begin{centering}
+                  \vbox{}\vfill
+                  \includegraphics[scale=0.5]{\beamer@fancy@titlepagelogo}\\
+                  \includegraphics[scale=0.5]{certat.png}
+                  \vfill
+              \end{centering}
+          \column{.5\textwidth}
+       \fi
+          % Authors, institute and date
+          \vskip1em\par
+          \begin{beamercolorbox}[sep=8pt,center,#1]{author}
+            \usebeamerfont{author}\insertauthor
+          \end{beamercolorbox}
+          \begin{beamercolorbox}[sep=8pt,center,#1]{institute}
+            \usebeamerfont{institute}\insertinstitute
+          \end{beamercolorbox}
+          \begin{beamercolorbox}[sep=8pt,center,#1]{date}
+            \usebeamerfont{date}\insertdate
+          \end{beamercolorbox}\vskip0.5em
+          {\usebeamercolor[fg]{titlegraphic}\inserttitlegraphic\par}
+  \end{columns}
+}
+
+\defbeamertemplate*{title page}{fancy}[1][]
+{
+  \def\beamer@fancy@truetext{true}%
+  \ifx\beamer@fancy@alternativetitlepage\beamer@fancy@truetext%
+    \usebeamertemplate{title page alternative}%
+  \else%
+    \usebeamertemplate{title page normal}%
+  \fi%
+}
+
+% Items.
+\defbeamertemplate{itemize item}{squarealt}%
+{\tiny\raise.5ex\hbox{\donotcoloroutermaths$\blacksquare$}}
+\defbeamertemplate{itemize subitem}{squarealt}%
+{\tiny\raise.4ex\hbox{\donotcoloroutermaths$\square$}}
+\defbeamertemplate{itemize subsubitem}{squarealt}%
+{\tiny\raise.3ex\hbox{\donotcoloroutermaths$\blacksquare$}}
+
+\defbeamertemplate{itemize item}{circlealt}%
+{\small\raise.2ex\hbox{\donotcoloroutermaths$\bullet$}}
+\defbeamertemplate{itemize subitem}{circlealt}%
+{\small\raise.1ex\hbox{\donotcoloroutermaths$\circ$}}
+\defbeamertemplate{itemize subsubitem}{circlealt}%
+{\scriptsize\raise.1ex\hbox{\donotcoloroutermaths$\bullet$}}
+
+\def\circletext{circle}
+\ifx\beamer@fancy@bullet\circletext
+  \setbeamertemplate{items}[circlealt]
+\else
+  \setbeamertemplate{items}[squarealt]
+\fi
+
+\mode<all>
+
diff --git a/slides/ietf-89/beamerouterthemedecolines.sty b/slides/ietf-89/beamerouterthemedecolines.sty
new file mode 100644
index 0000000..5893f91
--- /dev/null
+++ b/slides/ietf-89/beamerouterthemedecolines.sty
@@ -0,0 +1,166 @@
+% Copyright 2007 by Marco Barisione
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+
+\mode<presentation>
+
+% String used between the current page and the total page count.
+\def\beamer@decolines@pageofpages{/}
+\DeclareOptionBeamer{pageofpages}{\def\beamer@decolines@pageofpages{#1}}
+
+% Show a line below the frame title.
+\DeclareOptionBeamer{titleline}[true]{\def\beamer@decolines@titleline{#1}}
+
+% Image used for the watermark.
+\def\beamer@decolines@watermarkorig{}
+\DeclareOptionBeamer{watermark}{\def\beamer@decolines@watermarkorig{#1}}
+
+% Height of the watermark.
+\def\beamer@decolines@watermarkheight{100px}
+\DeclareOptionBeamer{watermarkheight}{\def\beamer@decolines@watermarkheight{#1}}
+
+% The original image height is watermarkheightmult * watermarkheight.
+\def\beamer@decolines@watermarkheightmult{1}
+\DeclareOptionBeamer{watermarkheightmult}{\def\beamer@decolines@watermarkheightmult{#1}}
+
+\ExecuteOptionsBeamer{titleline=false}
+\ProcessOptionsBeamer
+
+% Enable/disable the watermark.
+\def\watermarkon{%
+  \def\beamer@decolines@watermark{\beamer@decolines@watermarkorig}%
+}
+\def\watermarkoff{\def\beamer@decolines@watermark{}}
+
+% Initially enable the watermark.
+\watermarkon
+
+% Colors.
+\setbeamercolor*{lineup}{parent=palette primary}
+\setbeamercolor*{linemid}{parent=palette secondary}
+\setbeamercolor*{linebottom}{parent=palette tertiary}
+\setbeamercolor*{page header}{parent=titlelike}
+
+% Lengths
+\newlength{\headerheight}
+\setlength{\headerheight}{.045\paperheight}
+\newlength{\beamer@decolines@lineup}
+\setlength{\beamer@decolines@lineup}{.025\paperheight}
+\newlength{\beamer@decolines@linemid}
+\setlength{\beamer@decolines@linemid}{.015\paperheight}
+\newlength{\beamer@decolines@linebottom}
+\setlength{\beamer@decolines@linebottom}{.01\paperheight}
+
+% The height of the watermark part below the 3 bottom lines.
+\newlength{\beamer@decolines@watermarkheightbottom}
+\addtolength{\beamer@decolines@watermarkheightbottom}{\beamer@decolines@lineup}
+\addtolength{\beamer@decolines@watermarkheightbottom}{\beamer@decolines@linemid}
+\addtolength{\beamer@decolines@watermarkheightbottom}{\beamer@decolines@linebottom}
+
+% The height of the watermark part over the 3 bottom lines before shrinking.
+\newlength{\beamer@decolines@watermarkheightupperorig}
+\setlength{\beamer@decolines@watermarkheightupperorig}{\beamer@decolines@watermarkheight}
+\addtolength{\beamer@decolines@watermarkheightupperorig}{-\beamer@decolines@watermarkheightbottom}
+\multiply\beamer@decolines@watermarkheightupperorig by \beamer@decolines@watermarkheightmult
+
+% Footer.
+\defbeamertemplate*{footline}{decolines theme}
+{
+  \leavevmode%
+  % Page number.
+  \hbox{%
+  \begin{beamercolorbox}[wd=.2\paperwidth,ht=0ex,dp=0ex,center]{}%
+    \usebeamerfont{palette primary}\insertframenumber{} \beamer@decolines@pageofpages{} \inserttotalframenumber%
+  \end{beamercolorbox}%
+  \begin{beamercolorbox}[wd=.8\paperwidth,ht=0ex,dp=0ex]{}%
+  \end{beamercolorbox}%
+  } %
+  % First line.
+  \hbox{%
+  \begin{beamercolorbox}[wd=.2\paperwidth,ht=\beamer@decolines@lineup,dp=0pt]{}%
+  \end{beamercolorbox}%
+  \begin{beamercolorbox}[wd=.8\paperwidth,ht=\beamer@decolines@lineup,dp=0pt]{lineup}%
+  \end{beamercolorbox}%
+  } %
+  % Second line.
+  \hbox{%
+  \begin{beamercolorbox}[wd=\paperwidth,ht=\beamer@decolines@linemid,dp=0pt]{linemid}%
+  \end{beamercolorbox}%
+  } %
+  % Third line.
+  \hbox{%
+  \begin{beamercolorbox}[wd=.1\paperwidth,ht=\beamer@decolines@linebottom,dp=0pt]{}%
+  \end{beamercolorbox}%
+  \begin{beamercolorbox}[wd=.9\paperwidth,ht=\beamer@decolines@linebottom,dp=0pt]{linebottom}%
+  \end{beamercolorbox}%
+  }%
+  % This seems to fix some alignment problems with the watermark. It has to be
+  % always applied if you do not want to see the footer moving up and down when
+  % moving from a page with watermark to a page without or vice versa.
+  \vskip-.5px%
+  % Watermark.
+  \if\beamer@decolines@watermark\@empty\else%
+    \vskip-\beamer@decolines@watermarkheightbottom%
+    \llap{\includegraphics[height=\beamer@decolines@watermarkheightbottom,clip=true,%
+      trim=0pt 0pt 0pt \beamer@decolines@watermarkheightupperorig]{\beamer@decolines@watermark}\hskip-\paperwidth}%
+  \fi%
+}
+
+\defbeamertemplate*{headline}{decolines theme}
+{
+  \leavevmode%
+  \hbox{%
+  \begin{beamercolorbox}[wd=\paperwidth,ht=\headerheight,dp=0pt]{page header}%
+  \end{beamercolorbox}%
+  } %
+  \vskip0pt%
+}
+
+\defbeamertemplate*{frametitle}{decolines theme}[1][left]
+{
+  \ifbeamercolorempty[bg]{frametitle}{}{\nointerlineskip}%
+  \@tempdima=\textwidth%
+  \advance\@tempdima by\beamer@leftmargin%
+  \advance\@tempdima by\beamer@rightmargin%
+  \vbox{}\vskip-.5\beamer@leftmargin%
+  \begin{beamercolorbox}[sep=\beamer@leftmargin,#1,wd=\the\@tempdima]{}
+    \usebeamerfont{frametitle}\usebeamercolor[bg]{framesubtitle}%
+    \vbox{}\vskip0ex%
+    \if@tempswa\else\csname beamer@fte#1\endcsname\fi%
+    \strut\insertframetitle\strut\par%
+    {%
+      \ifx\insertframesubtitle\@empty%
+      \else%
+      {\usebeamerfont{framesubtitle}\usebeamercolor[bg]{framesubtitle}\insertframesubtitle\strut\par}%
+      \fi
+    }%
+    \vskip-1ex%
+    \if@tempswa\else\vskip-\beamer@leftmargin\fi
+  \end{beamercolorbox}%
+  \def\beamer@decolines@truetext{true}%
+  \ifx\beamer@decolines@titleline\beamer@decolines@truetext%
+    \vskip-.5\beamer@leftmargin%
+    \begin{beamercolorbox}[wd=\textwidth,ht=.1ex,dp=0ex]{linemid}%
+    \end{beamercolorbox}%
+  \fi
+}
+
+% Frame title continuations, default
+\defbeamertemplate*{frametitle continuation}{decolines theme}{(\insertcontinuationcount)}
+
+\defbeamertemplate*{sidebar right}{decolines theme}
+{
+  \vskip.1\beamer@leftmargin%
+  \llap{\insertlogo\hskip.5\beamer@leftmargin}%
+  \vfill%
+  \if\beamer@decolines@watermark\@empty\else%
+  \llap{\includegraphics[height=\beamer@decolines@watermarkheight]{\beamer@decolines@watermark}}%
+  \vskip-\beamer@decolines@watermarkheightbottom%
+  \fi
+}
+
+\mode
+<all>
diff --git a/slides/ietf-89/beamerthemeTorino.sty b/slides/ietf-89/beamerthemeTorino.sty
new file mode 100644
index 0000000..84b0964
--- /dev/null
+++ b/slides/ietf-89/beamerthemeTorino.sty
@@ -0,0 +1,28 @@
+% Copyright 2007 by Marco Barisione
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+
+\mode<presentation>
+
+\DeclareOptionBeamer{alternativetitlepage}[true]{\PassOptionsToPackage{alternativetitlepage=#1}{beamerinnerthemefancy}}
+\DeclareOptionBeamer{titlepagelogo}{\PassOptionsToPackage{titlepagelogo=#1}{beamerinnerthemefancy}}
+\DeclareOptionBeamer{bullet}{\PassOptionsToPackage{bullet=#1}{beamerinnerthemefancy}}
+\DeclareOptionBeamer{pageofpages}{\PassOptionsToPackage{pageofpages=#1}{beamerouterthemedecolines}}
+\DeclareOptionBeamer{titleline}[true]{\PassOptionsToPackage{titleline=#1}{beamerouterthemedecolines}}
+\DeclareOptionBeamer{watermark}{\PassOptionsToPackage{watermark=#1}{beamerouterthemedecolines}}
+\DeclareOptionBeamer{watermarkheight}{\PassOptionsToPackage{watermarkheight=#1}{beamerouterthemedecolines}}
+\DeclareOptionBeamer{watermarkheightmult}{\PassOptionsToPackage{watermarkheightmult=#1}{beamerouterthemedecolines}}
+
+\ProcessOptionsBeamer
+
+\useinnertheme{fancy}
+\useoutertheme{decolines}
+\usecolortheme{chameleon}
+
+\setbeamertemplate{navigation symbols}{}
+
+\mode
+<all>
diff --git a/slides/ietf-89/certat.png b/slides/ietf-89/certat.png
new file mode 100644
index 0000000..aa8fa72
Binary files /dev/null and b/slides/ietf-89/certat.png differ
diff --git a/slides/ietf-89/content.tex b/slides/ietf-89/content.tex
new file mode 100644
index 0000000..c406c0e
--- /dev/null
+++ b/slides/ietf-89/content.tex
@@ -0,0 +1,184 @@
+% DO NOT COMPILE THIS FILE DIRECTLY!
+% This is included by the other .tex files.
+
+\begin{frame}[t,plain]
+    \titlepage
+\end{frame}
+
+\begin{frame}[t]{Idea in a nutshell}
+\begin{itemize}
+\item Capture the public DNS answer packet 
+\item at the recursor (not the authoriative NS)
+\item delete source IP, destination IP ($\implies$ privacy)
+\item timestamp the public DNS record and finally
+\item Store it in a DB
+\item Provide a Query-Interface
+\item Invented by Florian Weimer 2005 (presentation at FIRST.org conference)
+\end{itemize}
+\end{frame}
+
+
+\begin{frame}[t]{pre-recursor passive DNS: store-everything-that-you-can approach (Cisco implementation)}
+\begin{centering}
+  \vbox{}\vfill
+  \includegraphics[scale=0.25]{pre-recursor.png}
+  \vfill
+\end{centering}
+\end{frame}
+
+\begin{frame}[t]{post-recursor passive DNS: store only what you need}
+\begin{itemize}
+\item the original idea. Privacy++. Mix input of different sensors.
+\end{itemize}
+\begin{centering}
+  \vbox{}\vfill
+  \includegraphics[scale=0.24]{post-recursor.png}
+  \vfill
+\end{centering}
+\end{frame}
+
+\begin{frame}[t]{Motivation}
+\begin{itemize}
+\item Nowadays Passive DNS servers are created\footnote{To our knowledge, there are more than 15 software implementations} and used worldwide
+\item DNS data is very \emph{localized}. It makes sense to have multiple, local DBs (different legal environments, access rights, restrictions to data,...)
+\item ... but that means we need a way to query multiple DBs.
+\item In 2011, we started to work on a \emph{common output format} for Passive DNS systems at the FIRST annual conference
+\item After discussions with many authors of passive DNS, version 02 of the internet-draft is published
+\end{itemize}
+\end{frame}
+
+
+\begin{frame}[t]{Main objectives of the internet-draft}
+\begin{itemize}
+\item Consistent naming of fields across Passive DNS software based on the most common Passive DNS implementations
+\item Minimal set of fields to be supported
+\item Minimal set of optional fields to be supported
+\item Way to add "additional" fields via a simple registry mechanism (IANA-like)
+\item Simple and easily parsable format
+\item A gentle reminder regarding privacy aspects of Passive DNS
+\end{itemize}
+\end{frame}
+
+\begin{frame}[t,fragile]{Sample output www.terena.org}
+\lstdefinelanguage{JavaScript}{
+  keywords={typeof, new, true, false, catch, function, return, null, catch, switch, var, if, in, while, do, else, case, break},
+  keywordstyle=\color{blue}\bfseries,
+  ndkeywords={class, export, boolean, throw, implements, import, this},
+  ndkeywordstyle=\color{darkgray}\bfseries,
+  identifierstyle=\color{black},
+  sensitive=false,
+  comment=[l]{//},
+  morecomment=[s]{/*}{*/},
+  commentstyle=\color{purple}\ttfamily,
+  stringstyle=\color{red}\ttfamily,
+  morestring=[b]',
+  morestring=[b]"
+}
+
+\lstset{
+   language=JavaScript,
+   backgroundcolor=\color{lightgray},
+   extendedchars=true,
+   basicstyle=\footnotesize\ttfamily,
+   showstringspaces=false,
+   showspaces=false,
+   numbers=left,
+   numberstyle=\footnotesize,
+   numbersep=9pt,
+   tabsize=2,
+   breaklines=true,
+   showtabs=false,
+   captionpos=b
+}
+\lstset{breaklines=true, language=JavaScript}
+\begin{lstlisting}
+{"count": 868, "time_first": 1298398002, "rrtype": "A", "rrname": "www.terena.org", "rdata": "192.87.30.6", "time_last": 1383124252}
+{"count": 89, "time_first": 1383729690, "rrtype": "CNAME", "rrname": "www.terena.org", "rdata": "godzilla.terena.org", "time_last": 1391517643}
+{"count": 110, "time_first": 1298398002, "rrtype": "AAAA", "rrname": "www.terena.org", "rdata": "2001:610:148:dead::6", "time_last": 136670845}
+\end{lstlisting}
+\end{frame}
+
+
+\begin{frame}[t]{Mandatory fields}
+\begin{itemize}
+\item \textbf{rrname} : name of the queried resource records
+\begin{itemize}
+\item JSON String
+\end{itemize}
+\item \textbf{rrtype} : resource record type
+\begin{itemize}
+\item JSON String (interpreted type of resource type if known)
+\end{itemize}
+\item \textbf{rdata} : resource records of the query(ied) resource(s)
+\begin{itemize}
+\item JSON String or an array of string if more than one unique triple
+\end{itemize}
+\item \textbf{time\_first} : first time that the resource record triple (rrname, rrtype, rdata) was seen
+\item \textbf{time\_last} : last time that the resource record triple (rrname, rrtype, rdata) was seen
+\begin{itemize}
+\item JSON Number (epoch value) UTC TZ
+\end{itemize}
+\end{itemize}
+\end{frame}
+
+\begin{frame}[t]{Optional fields}
+\begin{itemize}
+\item \textbf{count} : how many authoritative DNS answers were received by the Passive DNS collector
+\begin{itemize}
+\item JSON Number
+\end{itemize}
+\item \textbf{bailiwick} : closest enclosing zone delegated to a nameserver served in the zone of the resource records
+\begin{itemize}
+\item JSON String
+\end{itemize}
+
+\end{itemize}
+\end{frame}
+
+\begin{frame}[t]{Additionals fields}
+\begin{itemize}
+\item \textbf{sensor\_id} : Passive DNS sensor information
+\begin{itemize}
+\item JSON String
+\end{itemize}
+\item \textbf{zone\_time\_first} : specific first/last time seen when imported from a master file
+\item \textbf{zone\_time\_last}
+\begin{itemize}
+\item JSON Number
+\end{itemize}
+\item Additional fields can be requested via \url{https://github.com/adulau/pdns-qof/wiki/Additional-Fields}
+\end{itemize}
+\end{frame}
+
+
+\begin{frame}[t]{Future works}
+\begin{itemize}
+\item IETF 89 London to review the internet-draft with the dnsop WG
+\item Incorporate feedback from dnsop WG
+\item Incorporate all the comments and feedback from recently discovered Passive DNS (servers/clients) developers
+\item Expand the sample implementations to help developers to support the format
+\item An internet-draft for the query interface to Passive DNS systems is under preparation
+\end{itemize}
+\end{frame}
+
+\begin{frame}[t]{Question}
+\begin{center}
+\begin{itemize}
+\item Is this relevant for DNSOP? WG item?
+\end{itemize}
+\end{center}
+\end{frame}
+
+\begin{frame}[t]{Contact}
+\begin{itemize}
+\item \url{https://datatracker.ietf.org/doc/draft-dulaunoy-kaplan-passive-dns-cof/}
+\item Don't hesitate to contact us. Feedback and updates are welcomed:
+\item alexandre.dulaunoy@circl.lu - CIRCL
+\item kaplan@cert.at - CERT.at
+\item paul@redbarn.org - Farsight Security, Inc
+\item henry@stern.ca - Farsight Security, Inc.
+\end{itemize}
+\end{frame}
+
+
+
diff --git a/slides/ietf-89/logo-circl.pdf b/slides/ietf-89/logo-circl.pdf
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diff --git a/slides/ietf-89/pdns-dulaunoy-kaplan-passive-dns-cof.tex b/slides/ietf-89/pdns-dulaunoy-kaplan-passive-dns-cof.tex
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+++ b/slides/ietf-89/pdns-dulaunoy-kaplan-passive-dns-cof.tex
@@ -0,0 +1,26 @@
+\documentclass{beamer}
+\usetheme[pageofpages=of,% String used between the current page and the
+                         % total page count.
+          bullet=circle,% Use circles instead of squares for bullets.
+          titleline=true,% Show a line below the frame title.
+          alternativetitlepage=true,% Use the fancy title page.
+          %titlepagelogo=logo-circl.pdf,% Logo for the first page.
+%          watermark=watermark-polito,% Watermark used in every page.
+%          watermarkheight=100px,% Height of the watermark.
+%          watermarkheightmult=4,% The watermark image is 4 times bigger
+                                % than watermarkheight.
+          ]{Torino}
+
+\usepackage[utf8]{inputenc}
+\usepackage{listings}
+\author{\emph{A. Dulaunoy, L. Aaron Kaplan}}
+\title{Passive DNS - Common Output Format}
+\subtitle{Background and current state of the Internet-Draft}
+\institute{alexandre.dulaunoy@circl.lu\\kaplan@cert.at}
+\date{March 04, 2014}
+
+\begin{document}
+\include{content}
+\end{document}
+
+
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