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\documentclass[10pt,landscape,a4paper]{article}
\usepackage[left=0pt,top=0pt,right=0pt,bottom=0pt]{geometry}
\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8x]{inputenc}
\usepackage{ae}
\usepackage{tikz}
\usetikzlibrary{arrows,shadows,positioning,calc,fit,fadings}
\newcommand{\machine}[2][]{
\begin{pgfonlayer}{background}
\node[fill=yellow!20, rounded corners, draw=black!50, dashed,
fit=#2,inner sep=7pt,
label=below:\texttt{#1}] {};
\end{pgfonlayer}
}
\thispagestyle{empty}
\begin{document}
\pgfdeclarelayer{background}
\pgfdeclarelayer{foreground}
\pgfsetlayers{background,main,foreground}
\tikzstyle{service}=[draw, fill=blue!20,
text width=5em, text centered,
minimum height=2.5em,
drop shadow]
\tikzstyle{what} = [sloped,font=\footnotesize]
\tikzstyle{proto} = [sloped,font=\footnotesize\ttfamily]
\tikzstyle{port} = [sloped,font=\tiny\ttfamily]
\tikzstyle{TODO} = [draw=red]
\centering
\vspace*{\fill}
\begin{tikzpicture}
\begin{scope}[node distance=5pt]
% The member's machine
\node (IMAP-client)[service] {IMAP client};
\node (SMTP-client)[service] [above=of IMAP-client] {SMTP client};
\node (web-browser)[service] [below=of IMAP-client] {Web browser};
\machine[\textnormal{Your machine}]{ (SMTP-client) (IMAP-client) (web-browser) }
\end{scope}
\begin{scope}[xshift=8cm, node distance=2cm and 2cm, on grid]
% mistral
\node (o) {};
\node (LDAP-producer) [service] [above right=of o] {LDAP server};
\node (SMTP-server-IMAP)[service] [above left=of o] {SMTP server};
\node (IMAP-server) [service] [below left=of o] {IMAP server};
\node (mailboxes) [service] [below right=of o] {Mailboxes};
\machine[mistral]{ (IMAP-server) (LDAP-producer) (mailboxes) }
\end{scope}
\begin{scope}[xshift=8cm, yshift=-7cm]
% harvey
\node (webmail)[service] {Webmail};
\machine[harvey]{ (webmail) }
\end{scope}
\begin{scope}[xshift=8cm, yshift=7cm, node distance=2cm and 2cm, on grid]
% luxemburg, elefant
\node (o) {};
\node (SMTP-server) [service] [left=of o] {SMTP server};
\node (LDAP-consumer)[service] [right=of o] {LDAP replicate};
\machine[luxemburg\textnormal{,} elefant]{ (SMTP-server) (LDAP-consumer) }
\end{scope}
\begin{scope}[xshift=16cm, node distance=1.25cm, on grid]
% gnu
\node (o) {};
\node (MSA)[service] [above=of o] {MSA};
\node (MTA)[service] [below=of o] {MTA};
\machine[gnu]{ (MSA) (MTA) }
\end{scope}
\path[use as bounding box]
(current bounding box.north east) -- (current bounding box.south west);
\begin{pgfonlayer}{background}
\draw[->] (IMAP-server)
.. controls +(30:2cm) and +(-120:2cm) ..
(LDAP-producer)
node[pos=0.5,above,proto] {LDAP}
node[pos=0.5,below,what] {auth. bind}
node[pos=0.92,above,port] {389};
\draw[->] (IMAP-client.east)
.. controls +(1.5cm,0) and +(-1.5cm,0) ..
(IMAP-server.west)
node[pos=0.5,above,proto] {IMAPS}
node[pos=0.5,below,what] {\texttt{getmail}}
node[pos=0.95,above,port] {993};
\draw[->] (web-browser.south)
.. controls +(0,-4cm) and +(-3.5cm,0) ..
(webmail.west)
node[pos=0.5,above,proto] {HTTPS}
node[pos=0.97,above,port] {443};
\draw[->] (webmail.north)
.. controls +(0,1.5cm) and +(0,-1.5cm) ..
(IMAP-server.south)
node[pos=0.5,above,proto] {IMAPS}
node[pos=0.94,above,port] {993};
\draw[->] (webmail.30)
.. controls +(30:8cm) and +(0,-2.5cm) ..
(LDAP-producer.south)
node[pos=0.5,above,proto] {LDAP \textnormal{(over \texttt{SSH})}}
node[pos=0.15,above,what] {auth. bind to}
node[pos=0.15,below,what] {change password}
node[pos=0.96,above,port] {389};
\draw[->] (MSA) edge
node[above,proto] {ESMTP}
node[pos=0.9,below,port] {25}
(MTA);
\draw[->] (MSA.west)
.. controls +(-2cm,0) and +(2cm,0) ..
(LDAP-producer.east)
node[pos=0.5,above,proto] {LDAP \textnormal{(over \texttt{SSH})}}
node[pos=0.5,below,what] {auth. bind}
node[pos=0.96,below,port] {389};
\draw[->,TODO] (SMTP-client.north)
.. controls +(0,5cm) and +(-5cm,0) ..
($0.5*(SMTP-server)+0.5*(LDAP-consumer)+(0,1.5cm)$)
node[pos=1,above,proto] {ESMTPSA}
node[pos=1,below,what] {\texttt{sendmail}}
.. controls +(5cm,0) and +(0,5cm) ..
(MSA.north)
node[pos=0.99,above,port] {587};
\draw[->] (SMTP-server) edge
node[above,proto] {LDAPI}
node[below,what] {virtual lookups}
(LDAP-consumer);
\draw[->] (SMTP-server-IMAP) edge
node[above,proto] {LDAPI}
node[below,what] {virtual lookups}
(LDAP-producer);
\draw[->] (SMTP-server) edge
node[above,proto] {ESMTP \textnormal{(over \texttt{SSH})}}
node[pos=0.96,below,port] {25}
(SMTP-server-IMAP);
\draw[->] (SMTP-server-IMAP) edge
node[below,what] {\texttt{deliver}}
(IMAP-server);
\draw[->] (IMAP-server) edge
node[below,what] {read, write}
(mailboxes);
\draw[->] (LDAP-consumer.south)
.. controls +(0,-1.5cm) and +(0,1.5cm) ..
(LDAP-producer.north)
node[pos=0.5,above,proto] {LDAP \textnormal{(over \texttt{SSH})}}
node[pos=0.5,below,what] {\texttt{syncrepl}}
node[pos=0.95,above,port] {389};
\draw[->,TODO] (webmail.east)
.. controls +(3.5cm,0) and +(0,-4cm) ..
(MTA.south)
node[pos=0.5,above,proto] {ESMTPS}
node[pos=0.5,below,what] {\texttt{sendmail}}
node[pos=0.97,above,port] {25};
\draw[->,path fading=west]
($(SMTP-server.west)+(-5cm,2cm)$)
.. controls +(2cm,0) and +(-2cm,0) ..
(SMTP-server.west);
\draw[dashed,path fading=east]
($(SMTP-server.west)+(-5cm,2cm)$)
.. controls +(2cm,0) and +(-2cm,0) ..
(SMTP-server.west);
\path ($(SMTP-server.west)+(-5cm,2cm)$)
.. controls +(2cm,0) and +(-2cm,0) ..
(SMTP-server.west)
node[pos=0.5,above,proto] {ESMTP}
node[pos=0.97,above,port] {25};
\draw[path fading=east,TODO]
(MTA.east)
.. controls +(2cm,0) and +(0,2cm) ..
($(MTA.east)+(2cm,-5cm)$);
\draw[->,dashed,path fading=west,TODO]
(MTA.east)
.. controls +(2cm,0) and +(0,2cm) ..
($(MTA.east)+(2cm,-5cm)$)
node[pos=0.5,above,proto] {ESMTP}
node[pos=0.97,above,port] {25};
\end{pgfonlayer}
\end{tikzpicture}
\vspace*{\fill}
\end{document}
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