% latex big.tex && dvips big.dvi
% ps2pdf14 -dGrayImageFilter=/FlateEncode -dAutoFilterGrayImages=false big.ps
% (but someday consider) ps2pdf -dPDFSETTINGS=/prepress big.ps
% evince big.pdf
% (use page setup to select tabloid portrait)
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\pagestyle{empty}
\usepackage{graphicx}
\usepackage{soul}
\usepackage[paperwidth=11in,paperheight=17in,margin=0.5in]{geometry}
\usepackage{hanging}

\setlength{\parindent}{0in}

\usepackage{type1cm}
\usepackage{type1cm} \makeatletter  \newcommand{\sfont}[2]{\@setfontsize\normalsize{#1}{#2}}\makeatother

\sodef\kxn{}{-0.02em}{0in}{0in}

\begin{document}
\raggedright

\sfont{40}{40}
\textbf{ssh -o~VisualHostKey=yes}
\sfont{23}{25}\textit{
-K -o~GSSAPIDelegateCredentials=yes -o~GSSAPIAuthentication=yes
   -o~HostKeyAlgorithms=ecdsa-sha2-nistp256
  -o~FingerprintHash=sha256 }
 \sfont{40}{45}\quad username\textbf{@athena.dialup.mit.edu}

\vspace{0.3in}

\sfont{40}{45}ECDSA key fingerprint is SHA256:
\textbf{vdKTK
sJEHK
Z3Mrh
AVpgS
khih3
ddcNB
YSdDp
ObAos
TpQ}.

\sfont{70}{70}
\begin{centering}
\begin{verbatim}
+---[ECDSA 256]---+
|*==o   .+oB.     |
|*BEoo  + * .     |
|= +=+.. O        |
|.oo.*o.= o       |
| ..+ +. S .      |
|  . .    . o     |
|   o    . =      |
|    o .  o .     |
|     . ..        |
+----[SHA256]-----+
\end{verbatim}
\end{centering}

\sfont{13}{14}Fine print: This is most useful on Mac OS Sierra or later.  The \textit{italicized options} might not be necessary.  The \textit{-K} and the \textit{GSSAPI}* options are redundant, both enabling Kerberos authentication.  All the Athena dialups have the same host key.

This file is \verb+/afs/sipb.mit.edu/user/kenta/ssh-athena-dialup-verification.tex+ .

\end{document}
