\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Mary F. Smith (boogie)}
\pdfinfo{
  /Title (cisco-cli-security.pdf)
  /Creator (Cheatography)
  /Author (Mary F. Smith (boogie))
  /Subject (Cisco CLI - Security Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{0745A3}
\definecolor{LightBackground}{HTML}{EFF3F9}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Cisco CLI - Security Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Mary F. Smith (boogie)} via \textcolor{DarkBackground}{\uline{cheatography.com/86236/cs/20725/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Mary F. Smith (boogie) \\
  \uline{cheatography.com/boogie} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 18th December, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Remote Access Security {[}ssh{]}}}  \tn
% Row 0
\SetRowColor{LightBackground}
S1\#{\bf{ {\emph{show ip ssh}} }} & `verifies SSH is available and displays existing setup` \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
S1\#{\bf{ {\emph{configure terminal}} }} & `user exec mode` \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
S1(config)\#{\bf{ {\emph{ip domain-name ats.coop}} }} & `configures DNS` \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
S1(config)\#{\bf{ {\emph{crypto key generate rsa}} }} & `Enables SSH and generates a RSA key pair` \tn 
% Row Count 11 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\{\{ar\}\}S1(config)\# {\bf{ {\emph{crypto key seroize rsa}} }} & `disables SSH` \tn 
% Row Count 14 (+ 3)
% Row 5
\SetRowColor{white}
`Cisco will prompt you for a key name` & {\bf{ {\emph{S1.ats.coop}} }} \tn 
% Row Count 16 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`Cisco will prompt you for modulus size` & {\bf{ {\emph{1024}} }} `{[}cisco's recommended size{]}` \tn 
% Row Count 19 (+ 3)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-} \tn 
% Row Count 20 (+ 1)
% Row 8
\SetRowColor{LightBackground}
S1(config)\#{\bf{ {\emph{line vty 0 15}} }} & `move into vty config for all ports` \tn 
% Row Count 22 (+ 2)
% Row 9
\SetRowColor{white}
S1(config-line)\#{\bf{ {\emph{login local}} }} & `allow local logins not AAA Server **` \tn 
% Row Count 24 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{\{\{ar\}\}{\bf{`*Cisco's Authentication Authorization \& Accounting Server}}`} \tn 
% Row Count 26 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{S1(config-line)\#{\bf{ {\emph{transport input ssh}} }}} \tn 
% Row Count 27 (+ 1)
% Row 12
\SetRowColor{LightBackground}
S1(config-line)\#{\bf{ {\emph{user admin password H0u\$3M0u\$3}} }} & `sets local admin login pw` \tn 
% Row Count 30 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Remote Access Security {[}ssh{]} (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
S1(config)\# show ip ssh{\emph{ }}* & `verify ssh settings` \tn 
% Row Count 2 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Optional ssh config \newline - {\bf{ {\emph{ip ssh version 2}} }} \newline - {\bf{ {\emph{ip ssh authentication-retries 5}} }} \newline - {\bf{ {\emph{ip ssh time-out 60}} }} \newline - {\bf{ {\emph{end}} }} \newline - {\bf{ {\emph{show ip ssh}} }}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Show Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{`show version`} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}IOS Version, Memory etc.} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{`show mac address-table`} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}Displays the MAC Address Table} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{`show ip route`} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}Displays the routing table} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{`show ip interface`} \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{`show interface g0/0`} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}Displays the interface status, MAC, IP, etc.} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{`show ip interface brief`} \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{`show running configuration`} \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Show Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{show ip interface brief} \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{GigabitEthernet0/0     unassigned      YES NVRAM  administratively down down \newline  \newline  \newline {\bf{{\emph{'Do' -  in front of a command will run the command at any level}}}}   i.e. mydevice (config)\# {\bf{do show ip interface brief}} -OR- mydevice (config)\# {\bf{do reload}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{0.8 cm} p{0.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Port Security}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{} \tn 
% Row Count 0 (+ 0)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{0.8 cm} p{0.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Interface Security}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{} \tn 
% Row Count 0 (+ 0)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Error Messages}}  \tn
% Row 0
\SetRowColor{LightBackground}
\% Invalid input detected at '\textasciicircum{}' marker & You are at the wrong level to run command \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{\% Incomplete command} \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{[}command brings a null response{]} & This is not a bad command, there is just no results to display \tn 
% Row Count 8 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.96 cm} x{5.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Tips \& Tricks}}  \tn
% Row 0
\SetRowColor{LightBackground}
Your CLI command fails & `- are you in the right mode | level` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
 & `- are you on the right device` \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Other Misc Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
`mydevice (config)\# {\bf{sdm pre dual def}}` & used if switch won't take IPv6 address \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
? & help commands \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`Ctrl+Shift+6` & Oh crap, stop! (Cancels whatever it's currently doing \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
`mydevice (config)\# {\bf{enable secret abc123}}` & Sets secret password to {\emph{abc123}} \tn 
% Row Count 10 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{show} \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}