\documentclass[10pt]{ictlabtest} %\documentclass[10pt]{ictlabtest} \usepackage{rcs,multicol} \RCS $Revision: 1.0 $ %\usepackage[screen,margin=4mm,centering]{geometry} %\usepackage{calc,acro,alltt,key,xr,nick,color,multicol} \usepackage{xr,color,alltt} %\geometry{left=10mm, right=10mm} \externaldocument[lt-]% {../../linux_training-plus-config-files-ossi/build/masterfile} \usepackage[pdfpagemode=None,pdfauthor={Nick Urbanik}]{hyperref} \newcommand*{\labTitle}{Quiz 11: Secure Shell} \renewcommand*{\subject}{Operating Systems and Systems Integration} \providecommand*{\RPM}{\acro{RPM}\xspace} \providecommand*{\CD}{\acro{CD}\xspace} %\setlength{\paperwidth}{260mm} %\setlength{\paperheight}{310mm} \makeatletter \renewcommand\theenumii{\@Alph\c@enumii} \makeatother %\newcommand*{\margin}{5mm} %\renewcommand*{\slideleftmargin}{\margin} %\renewcommand*{\sliderightmargin}{\margin} %\renewcommand*{\slidetopmargin}{\margin} %\renewcommand*{\slidetopmargin}{\margin} %\renewcommand*{\slidebottommargin}{\margin} %\renewcommand*{\slidetopmargin}{0pt} %\renewcommand*{\slidebottommargin}{-50pt} % Do not set paperwidth or paperheight. %\setlength{\slidewidth}{297mm-2\margin} %\setlength{\slideheight}{210mm-2\margin} %\setlength{\slideheight}{210mm} %\slideframe[]{none} %\setlength{\slideframesep}{0pt} %\slidesmag{2} %\setcounter{finalcolumnbadness}{10000} %\setcounter{columnbadness}{10000} \definecolor{light-blue}{rgb}{0.4,0.4,1} \newcommand*{\gl}[1]{\textcolor{light-blue}{#1}} % good link \newcommand*{\ex}[1]{\textcolor{green}{#1}} % executable file \newcommand*{\bl}[1]{\colorbox{red}{\textcolor{white}{\textbf{#1}}}} % bad link \begin{document} %% \raggedright %% \pagestyle{empty} %% %\Large %% %\tableofcontents %% %\begin{slide} %% \begin{center} %% \par\vspace*{\fill}\par %% \begin{minipage}[c]{0.99\linewidth} %% \centering {\Huge\sffamily\bfseries Any marks not recognised by %% the Optical Mark Recognition (OMR) machine will get ZERO marks %% \par\vspace*{0.1\textheight}\par %% Correct mistakes with an eraser, correction pen or white tape; it is %% not enough to put a cross through the circle %% \par\vspace*{0.1\textheight}\par %% Errors in student number get ZERO marks} %% \end{minipage} %% \par\vspace*{\fill}\par %% \end{center} %% \clearpage %% %\par\vspace*{-15mm}\par %% \begin{center} %% \bfseries %% {\Large Operating Systems and Systems Integration \ Quick Quiz 3} %% \end{center} \noindent% \textbf{Do not refer to any printed material.\\ No talking or discussion is allowed until the answer sheets are all collected.} %\extraslideheight{0pt} %\enlargethispage*{2\baselineskip} %\large% %\begin{multicols}{2} %\setcounter{columnbadness}{10000} %\setcounter{unbalance}{2} \paragraph{Review:} \begin{enumerate} \item \emph{Secure Shell} is: \begin{enumerate} \item what Nick uses to connect to his desktop machine to show the lectures and laboratory work \item not useful for remote administration \item always requires you to use a special hardware password device to authenticate yourself, rather like a pocket calculator \item is just another name for \texttt{bash} \item is not useful for port forwarding, or carrying other network traffic, and does not use encryption \end{enumerate} \item If you cannot connect to a remote computer using secure shell (\SSH), you should: \begin{enumerate} \item Call the police \item Check whether the secure shell server is running on the remote computer, because an \SSH client needs a server to connect to \item Shut down your own computer immediately and check for security violations \item Check whether your computer has \acro{AIDS} (Acquired Immune Deficiency Syndrome) \item Use the \underline{\textbf{S}}uper \underline{\textbf{S}}oftware \underline{\textbf{H}}ickup remover to get your SSH working properly again. \end{enumerate} \item The \SSH agent is: \begin{enumerate} \item A Cyber James Bond \item A program that holds the decrypted private key \item A tool for attacking other computers \item A cracking tool \item used to kill people. \end{enumerate} \end{enumerate} %% \item the directory \texttt{/proc} contains information that is: %% \begin{enumerate} %% \item dynamic information about the OS and hardware %% \item a type of relational database; SQL is always used to query it %% \item a list of network \textbf{proc}ters %% \item is unreadable except by the OS kernel %% \item contains entirely static data that is fixed when the computer %% boots %% \end{enumerate} \vspace*{-5mm} \paragraph{Preparation:} \begin{enumerate} \setcounter{enumi}{3} \item \SSH uses keys. The host keys are used to: \begin{enumerate} \item authenticate the server and are used to begin the encryption \item authenticate the user \item block data transmission \item prevent any files being transferred \item terminate the agent \end{enumerate} \item The \emph{user} public and private keys are used to: \begin{enumerate} \item authenticate the server and are used to begin the encryption \item authenticate the user \item block data transmission \item prevent any files being transferred \item terminate the agent \end{enumerate} \end{enumerate} \end{document}