339 lines
5.9 KiB
Text
339 lines
5.9 KiB
Text
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#LyX 1.4.3 created this file. For more info see http://www.lyx.org/
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\lyxformat 245
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\begin_document
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\begin_header
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\textclass article
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\begin_preamble
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\usepackage{hyperref}
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\usepackage{html}
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\usepackage{german}
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\end_preamble
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\language ngerman
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\inputencoding auto
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\fontscheme default
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\graphics default
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\paperfontsize default
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\spacing single
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\papersize default
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\use_geometry false
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\use_amsmath 1
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\cite_engine basic
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\use_bibtopic false
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\paperorientation portrait
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\secnumdepth 3
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\tocdepth 3
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\paragraph_separation skip
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\defskip medskip
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\quotes_language swedish
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\papercolumns 1
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\papersides 1
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\paperpagestyle default
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\tracking_changes false
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\output_changes true
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\end_header
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\begin_body
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\begin_layout Standard
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\begin_inset Include \input{titlebar.inc}
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preview false
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\begin_layout Standard
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\begin_inset Include \input{menue.inc}
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preview false
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status collapsed
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\begin_layout Standard
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\backslash
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begin{rawhtml}
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\end_layout
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\begin_layout Standard
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\end_layout
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\begin_layout Standard
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<!-- main starts here -->
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\end_layout
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\begin_layout Standard
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\end_layout
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\begin_layout Standard
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<div id="main">
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\end_layout
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\begin_layout Standard
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\end_layout
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\begin_layout Standard
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\backslash
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end{rawhtml}
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\end_layout
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\end_inset
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\end_layout
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\begin_layout Title
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Verschl<EFBFBD>sselt Chatten mit Gaim und iChat
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\end_layout
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\begin_layout Standard
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Verschl<EFBFBD>sseltes Chatten mit
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{Gaim}{http://gaim.sf.net}
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\end_layout
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\end_inset
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und dem Plugin
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{Gaim-Encryption}{http://gaim-encryption.sourceforge.net/}
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\end_layout
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\end_inset
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ist auch unter Mac OS X m<>glich.
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Dazu sind folgende Voraussetzungen notwendig:
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\end_layout
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\begin_layout Itemize
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Der Apple
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{X11-Server}{http://www.apple.com/de/macosx/features/x11/}
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\end_layout
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\end_inset
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,
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\end_layout
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\begin_layout Itemize
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die GTK+ Bibliotheken, erh<72>ltlich bei
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{OpenDarwin.org}{http://opendarwin.org/}
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\end_layout
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\end_inset
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,
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\end_layout
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\begin_layout Itemize
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der
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{Gaim-Quellcode}{http://gaim.sourceforge.net/downloads.php}
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\end_layout
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\end_inset
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und
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\end_layout
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\begin_layout Itemize
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der
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{Gaim-Encryption-Quellcode}{http://gaim-encryption.sourceforge.ne
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t/}
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\end_layout
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\end_inset
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.
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\end_layout
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\begin_layout Standard
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An dieser Stelle w<>rde nun die Anleitung zur Installation der ben<65>tigten
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Programme folgen.
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Wir haben uns bewusst dagegen entschieden, sie hier zu ver<65>ffentlichen.
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Eine solche Anleitung erfordert tiefere Kenntnisse der Funktionsweise von
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Mac OS X.
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\end_layout
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\begin_layout Standard
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Falls du dich dennoch damit befassen willst, erkl<6B>rt dir
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{diese Seite}{http://web.archive.org/web/20060502165113/http://ww
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w.ams.ucsc.edu/~dmerl/gaimosx.html}
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\end_layout
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\end_inset
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die genaue Vorgehensweise.
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Die Einrichtung von Gaim bzw.
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Gaim-Encryption und wie verschl<68>sseltes Chatten praktisch funktioniert,
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kannst du aus den Anleitungen f<>r Linux oder Windows entnehmen.
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\end_layout
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\begin_layout Subsection
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Verschl<EFBFBD>sseln des Verbindungsweges
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\end_layout
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\begin_layout Standard
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W<EFBFBD>hrend Gaim eine Verschl<68>sselung von Endpunkt zu Endpunkt erlaubt, bieten
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andere Chatprogramme wenigstens die M<>glichkeit, den Transportweg zu sichern.
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Diese Art der Verschl<68>sselung nennt sich 'Transport Layer Security', kurz:
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TLS.
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Fr<46>her wurde dies als 'Secure Socket Layer' bezeichnet, so dass man in
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den Programmen h<>ufig noch die Bezeichnung SSL findet.
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\end_layout
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\begin_layout Standard
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Aktiviert man TLS, dann wird die Verbindung vom eigenen Chatprogramm zum
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Chatserver verschl<68>sselt.
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Man kann aber nie wissen, ob der Empf<70>nger der Nachricht ebenfalls diese
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Verschl<68>sselung eingeschaltet hat.
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Somit ist es m<>glich, dass die Nachricht die H<>lfte der Strecke ver- und
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die andere H<>lfte unverschl<68>sselt zur<75>ck legt.
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Eine Endpunkt zu Endpunkt Verschl<68>sselung ist also offensichtlich vorzuziehen.
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\end_layout
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\begin_layout Standard
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Ob eine TLS-Verschl<68>sselung im Einzelfall m<>glich ist, h<>ngt sehr davon
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ab, welches Chatprotokoll benutzt wird und ob der benutzte Server die Verschl<68>s
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selung unterst<73>tzt.
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Im Folgenden wird die Aktivierung von SSL in iChat mit einem
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\begin_inset ERT
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status collapsed
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\begin_layout Standard
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\backslash
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htmladdnormallink{Jabber}{http://de.wikipedia.org/wiki/Jabber}
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\end_layout
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\end_inset
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Account beschrieben.
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\end_layout
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\begin_layout Subsubsection
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Aktivieren von SSL in iChat f<>r einen Jabber Account
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\end_layout
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\begin_layout Standard
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In den Einstellungen von iChat f<>r den Account auf den Reiter 'Servereinstellung
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en' gehen und das H<>kchen '<27>ber SSL verbinden' anklicken.
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Der Port stellt sich automatisch auf 5223 ein.
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Dies ist der Port auf dem der Jabber Server <20>blicherweise die SSL-Verschl<68>sselu
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ng versteht.
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\end_layout
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\begin_layout Standard
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\begin_inset Float figure
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wide false
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sideways false
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status open
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\begin_layout Standard
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\begin_inset Graphics
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filename bilder/ichat_einstellungen_jabber_ssl.png
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\end_inset
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\end_layout
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\begin_layout Caption
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In iChat SSL aktivieren
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\end_layout
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\end_inset
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\end_layout
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\begin_layout Standard
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\begin_inset Include \input{progress/chat_macos.inc}
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preview false
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\end_inset
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\end_layout
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\begin_layout Standard
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\begin_inset Note Note
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status open
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\begin_layout Standard
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http://developer.imendio.com/wiki/Gtk_Mac_OS_X versucht GTK+ nativ zu portieren.
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Dann ist der X-Server nicht mehr notwendig.
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\end_layout
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\end_inset
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\end_layout
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\end_body
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\end_document
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