\begin{frame}[fragile]
\frametitle{Public key authentication}
+ \pause
\begin{block}{\textasciitilde/.ssh/authorized\_keys}
\begin{lstlisting}
option1="option1value",option2="option2value"...optionn="optionnvalue" ssh-rsa\
AAAB4N.....
\end{lstlisting}
\end{block}
+ \pause
+ \begin{block}{Merk op}
+ alles in \textasciitilde/.ssh/ moet alleen leesbaar zijn voor de user.
+ \lstinline{chmod 600} dus
+ \end{block}
\end{frame}
+\begin{frame}[fragile]
+ \frametitle{Pipen}
+ \begin{block}{Nut}
+ Spreekt voor zich
+ \end{block}
+ \pause
+ \begin{block}{Basisvoorbeelden}
+ \begin{enumerate}
+ \item{server$\rightarrow$client}\\
+ \lstinline{ssh frobnicator@foobarbaz.com 'ls -allah /media/cdrom'}
+ \item{client$\rightarrow$server}\\
+ \lstinline{ls -allah /media/cdrom | ssh frobnicator@foobarbaz.com 'cat - > cdrom_client.txt'}
+ \end{enumerate}
+ \end{block}
+ \pause
+ \begin{block}{Praktijk}
+ \begin{enumerate}
+ \item{Backup}\\
+ \lstinline{dd if=/dev/sdb | gzip | ssh frobnicator@foobarbaz.com 'gzip -d | dd of=sdb.img'}
+ \item{Script draaien}\\
+ \lstinline{ssh frobnicator@foobarbaz.com 'bash -s' < script.sh}
+ \item{Liedje afspelen}\\
+ \lstinline{ssh frobnicator@foobarbaz.com 'cat ~/liedje.flac' | flac -dsc - | aplay}
+ \end{enumerate}
+ \end{block}
+\end{frame}
+
+
\begin{frame}[fragile]
\frametitle{X forwarding}
\begin{block}{Nut}