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% Document Info
\author{River L. (Tamaranth)}
\pdfinfo{
  /Title (cisco-device-security.pdf)
  /Creator (Cheatography)
  /Author (River L. (Tamaranth))
  /Subject (Cisco Device Security Cheat Sheet)
}

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\noindent
\begin{multicols}{3}
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    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Cisco Device Security Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{River L. (Tamaranth)} via \textcolor{DarkBackground}{\uline{cheatography.com/42882/cs/14448/}}}
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\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}River L. (Tamaranth) \\
  \uline{cheatography.com/tamaranth} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 23rd February, 2018.\\
   Updated 30th August, 2018.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\begin{document}
\raggedright
\raggedcolumns

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


\begin{tabularx}{17.67cm}{x{8.635 cm} x{8.635 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Login Enhancements}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Function}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`{\bf{login block-for}} 120 {\bf{attempts}} 3 {\bf{within}} 30` & blocks login attempts for 120 secs if 3 fail within 30 secs\{\{nl\}\}(`login local` must be configured) \tn 
% Row Count 6 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{login quiet-mode access-class}} {\emph{{[}acl-name | acl-number{]}}}` & maps to an ACL so only authorized hosts can attempt to login \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
`{\bf{login delay}} {\emph{seconds}}` & wait-time between login attempts \tn 
% Row Count 12 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`{\bf{login on-success log`}} & records successful logins \tn 
% Row Count 14 (+ 2)
% Row 5
\SetRowColor{white}
`{\bf{login on-failure log`}} & records failed login attempts \tn 
% Row Count 16 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{17.67cm}}{\textgreater{} Login enhancements don't apply to console connections \newline \textgreater{} `login block-for` must be configured before any others}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{6.5793 cm} x{3.5427 cm} x{6.748 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Role-Based CLI Views}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Mode}} & {\bf{Function}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`{\bf{aaa new-model}}` & global & enables AAA \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{parser view}} {\emph{view-name}}` & global & creates a new view (must be in root view) \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
`{\bf{secret}} {\emph{password}}` & view & assigns view password (required) \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{commands}} {\emph{parser-mode}} {[}{\bf{include}}|{\bf{exclude}}{]} {[}{\emph{command}}|{\emph{interface}}{]}` & view & assigns command or interface to view \tn 
% Row Count 14 (+ 6)
% Row 5
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{enable view}} {\emph{view-name}}` & \{\{nobreak\}\}priv. EXEC & enters view (enable secret for root password) \tn 
% Row Count 17 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{parser view}} {\emph{view-name}} {\bf{superview}}` & global & creates a new superview \tn 
% Row Count 21 (+ 4)
% Row 7
\SetRowColor{white}
`{\bf{secret}} {\emph{password}}` & \seqsplit{superview} & assigns superview password (required) \tn 
% Row Count 24 (+ 3)
% Row 8
\SetRowColor{LightBackground}
`{\bf{view}} {\emph{view-name}}` & \seqsplit{superview} & assigns existing view to superview \tn 
% Row Count 27 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{6.2419 cm} x{6.4106 cm} x{4.2175 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{IPsec VPNs (Site-to-Site)}}  \tn
% Row 0
\SetRowColor{LightBackground}
 & {\bf{Command}} & {\bf{Mode}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{3}{x{17.67cm}}{{\bf{{\emph{-{}-{}-{}-- Phase 1 -{}-{}-{}--}}}}} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`{\bf{cry is en`}} & `{\bf{crypto isakamp enable`}} & global \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{cry is pol}} 10` & `{\bf{crypto isakmp policy}} 10` & global \tn 
% Row Count 7 (+ 3)
% Row 4
\SetRowColor{LightBackground}
`{\bf{h}} sha` & `{\bf{hash}} sha` & \{\{nobreak\}\}(config-isakmp) \tn 
% Row Count 10 (+ 3)
% Row 5
\SetRowColor{white}
`{\bf{a p}} (auth pre)` & `{\bf{authentication pre-share}}` & \{\{nobreak\}\}(-isakmp) \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`{\bf{g}} 14` & `{\bf{group}} {[}DH group \#{]}` & \{\{nobreak\}\}(-isakmp) \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
`{\bf{l}} 3600` & `{\bf{lifetime}} {[}secs{]}` & \{\{nobreak\}\}(-isakmp) \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
`{\bf{enc}} a 256` & `{\bf{encryption}} aes 256` & \{\{nobreak\}\}(-isakmp) \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{cry is key}} vpnpass {\bf{add}} 10.2.2.2` & \{\{nobreak\}\}`{\bf{crypto isakmp key}} {[}key{]} {\bf{address}} {[}peer IP{]}` & global \tn 
% Row Count 23 (+ 5)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{17.67cm}}{{\bf{{\emph{-{}-{}-{}-- Phase 2 -{}-{}-{}--}}}}} \tn 
% Row Count 24 (+ 1)
% Row 11
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{cry ip t}} VPN-SET esp-a 256 esp-sha-` & \{\{nobreak\}\}`{\bf{crypto ipsec transform-set}} {[}tag{]} {[}encry.{]} {[}bits{]} {[}hash{]}` & global \tn 
% Row Count 29 (+ 5)
% Row 12
\SetRowColor{LightBackground}
`{\bf{cry ip s l s`}} & \{\{nobreak\}\}`{\bf{crypto ipsec \seqsplit{security-association} lifetime seconds}} 1800` & global \tn 
% Row Count 34 (+ 5)
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{6.2419 cm} x{6.4106 cm} x{4.2175 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{IPsec VPNs (Site-to-Site) (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{cry map}} CMAP 10 {\bf{ipsec-i}}` & \{\{nobreak\}\}`{\bf{crypto map}} {[}name{]} {[}seq \#{]} {\bf{ipsec-isakmp}}` & global \tn 
% Row Count 4 (+ 4)
% Row 14
\SetRowColor{white}
`{\bf{m add}} 101` & `{\bf{match address}} 101` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 7 (+ 3)
% Row 15
\SetRowColor{LightBackground}
`{\bf{s pe}} 10.2.2.2` & `{\bf{set peer}} {[}peer IP{]}` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 10 (+ 3)
% Row 16
\SetRowColor{white}
`{\bf{s pfs}} group14` & `{\bf{set pfs}} {[}group\#{]}` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 13 (+ 3)
% Row 17
\SetRowColor{LightBackground}
`{\bf{s t}} VPN-SET` & `{\bf{set transform-set}} {[}tag{]}` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 16 (+ 3)
% Row 18
\SetRowColor{white}
`{\bf{s s li s}} 900` & \{\{nobreak\}\}`{\bf{set \seqsplit{security-association} lifetime seconds}} {[}secs{]}` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 21 (+ 5)
% Row 19
\SetRowColor{LightBackground}
`{\bf{desc}} {[}text{]}` & `{\bf{description}} {[}text{]}` & \{\{nobreak\}\}(-crypto-map) \tn 
% Row Count 24 (+ 3)
% Row 20
\SetRowColor{white}
`{\bf{cry m}} CMAP` & `{\bf{crypto map}} {[}name{]}` & interface \tn 
% Row Count 26 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{7.0854 cm} x{2.0244 cm} x{7.7602 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Line Config Mode}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Line}} & {\bf{Function}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`{\bf{no exec}}` & any \seqsplit{unused} & disables EXEC mode for the line (outgoing connections only) \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
`{\bf{login local`}} & all & forces username/password authentication from local database \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{logging synchronous}}` & all & prevents logging from interrupting commands \tn 
% Row Count 13 (+ 3)
% Row 4
\SetRowColor{LightBackground}
`{\bf{exec-timeout}} 5 0` & all & logs out after 5 mins inactive \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{5.3984 cm} x{5.7358 cm} x{5.7358 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Informational/Show Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Short Command}} & {\bf{Full Command}} & {\bf{What It Displays}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`{\bf{sh login`}} & `{\bf{show login`}} & configured login settings \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`{\bf{sh login f`}} & `{\bf{show login failures`}} & details about login failures (src IP, count, time/date, etc) \tn 
% Row Count 9 (+ 5)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{sh cry key mypubkey r`}} & \{\{nobreak\}\}`{\bf{show crypto key mypubkey rsa`}} & current RSA keys \tn 
% Row Count 13 (+ 4)
% Row 4
\SetRowColor{LightBackground}
`{\bf{sh ip ssh`}} & `{\bf{show ip ssh`}} & SSH \seqsplit{configuration} \tn 
% Row Count 15 (+ 2)
% Row 5
\SetRowColor{white}
`{\bf{sh ssh`}} & `{\bf{show ssh`}} & current SSH connections \tn 
% Row Count 17 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`{\bf{sh p v a`}} & `{\bf{show parser view all}}` & summary of all configured views\{\{nl\}\}(asterisk indicates superview) \tn 
% Row Count 23 (+ 6)
% Row 7
\SetRowColor{white}
`{\bf{sh sec b`}} & `{\bf{show secure bootset`}} & verification of the archive \tn 
% Row Count 26 (+ 3)
% Row 8
\SetRowColor{LightBackground}
`{\bf{sh logg`}} & `{\bf{show logging`}} & logging \seqsplit{configuration} \& buffered syslog messages \tn 
% Row Count 30 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{5.3984 cm} x{5.7358 cm} x{5.7358 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Informational/Show Commands (cont)}}  \tn
% Row 9
\SetRowColor{LightBackground}
`{\bf{sh us`}} & `{\bf{show users}}` & users connected to the device \tn 
% Row Count 3 (+ 3)
% Row 10
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{sh cr is po`}} & `{\bf{show crypto isakmp policy`}} & ISAKMP policy \seqsplit{configuration} \tn 
% Row Count 6 (+ 3)
% Row 11
\SetRowColor{LightBackground}
`{\bf{sh cr ip sa}}` & `{\bf{show crypto ipsec sa`}} & IPsec security association \tn 
% Row Count 8 (+ 2)
% Row 12
\SetRowColor{white}
`{\bf{sh cr map`}} & `{\bf{show crypto map`}} & crypto map \seqsplit{configuration} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{7.5915 cm} x{1.687 cm} x{7.5915 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Logging \& Monitoring}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Mode}} & {\bf{Function}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{service timestamps log datetime msec}}` & \seqsplit{global} & enables timestamps service \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{logging host}} {\emph{ip-address}}` & \seqsplit{global} & specifies syslog server \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
`{\bf{logging trap}} {\emph{level}}` & \seqsplit{global} & sets log severity level \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`{\bf{logging source-interface}} {\emph{ip-address}}`\{\{nobreak\}\} & \seqsplit{global} & identifies the device sending the log info \tn 
% Row Count 13 (+ 3)
% Row 5
\SetRowColor{white}
`{\bf{logging on`}} & \seqsplit{global} & turns on logging \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{7.5915 cm} x{1.687 cm} x{7.5915 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Secure Bootset}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Mode}} & {\bf{Function}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`{\bf{secure boot-image`}} & \seqsplit{global} & secures IOS image \& enables Cisco IOS image resilience \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
`{\bf{secure boot-config`}} & \seqsplit{global} & takes snapshot of running-config to save in persistent storage \tn 
% Row Count 9 (+ 4)
% Row 3
\SetRowColor{white}
\mymulticolumn{3}{x{17.67cm}}{{\bf{{\emph{-{}-{}- To Restore Secure Configuration -{}-{}-}}}}} \tn 
% Row Count 10 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{17.67cm}}{`{\bf{reload`}} -\textgreater{} ROMmon mode} \tn 
% Row Count 11 (+ 1)
% Row 5
\SetRowColor{white}
`{\bf{dir`}} & \seqsplit{ROMmon} & lists contents of device where secure bootset is stored \tn 
% Row Count 15 (+ 4)
% Row 6
\SetRowColor{LightBackground}
`{\bf{boot}} flash:{\emph{filename}}` & \seqsplit{ROMmon} & boots route with secure IOS image \tn 
% Row Count 17 (+ 2)
% Row 7
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{secure boot-config restore}} flash:{\emph{filename}}` & \seqsplit{global} & restores secure config \tn 
% Row Count 21 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{8.635 cm} x{8.635 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{SSH Configuration}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Function}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{user}} {\emph{Bob}} {\bf{algorithm-type scrypt secret}} {\emph{password}}` & creates user in local database \tn 
% Row Count 5 (+ 4)
% Row 2
\SetRowColor{LightBackground}
`{\bf{ip domain-name}} span.com` & sets network domain name \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
`{\bf{crypto key zeroize rsa`}} & removes any existing RSA key pairs \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{cry key gen rsa gen mod 1024`}} & creates RSA encryption key (max: 4096 bits) \tn 
% Row Count 12 (+ 3)
% Row 5
\SetRowColor{white}
`{\bf{transport input ssh`}} & enables SSH (line config, vty) \tn 
% Row Count 14 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`{\bf{ip ssh time-out}} {\emph{seconds}}` & sets SSH timeout length \tn 
% Row Count 16 (+ 2)
% Row 7
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{ip ssh authentication-retries}} 2` & sets number of login attempts before user is disconnected \tn 
% Row Count 19 (+ 3)
% Row 8
\SetRowColor{LightBackground}
`{\bf{ip ssh version}} 2` & sets SSH version to v2 \tn 
% Row Count 21 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{8.635 cm} x{8.635 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Miscellaneous Configurations}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Function}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}`{\bf{license boot module c1900 technology-package securityk9}}` & {\emph{Adds security package to 1941 routers!}} \tn 
% Row Count 5 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}`{\bf{no service password-recovery`}} & prevents an attacker from recovering the router password \tn 
% Row Count 8 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}



\end{document}