Open Source Alternatives to Windows on Servers
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Diplomarbeit Kalenderstandards Im Internet
Diplomarbeit Kalenderstandards im Internet Eingereicht von Reinhard Fischer Studienkennzahl J151 Matrikelnummer: 9852961 Diplomarbeit am Institut für Informationswirtschaft WIRTSCHAFTSUNIVERSITÄT WIEN Studienrichtung: Betriebswirtschaft Begutachter: Prof. DDr. Arno Scharl Betreuender Assistent: Dipl.-Ing. Mag. Dr. Albert Weichselbraun Wien, 20. August 2007 ii Inhaltsverzeichnis Abbildungsverzeichnis vi Abkürzungsverzeichnis vii 1 Einleitung 1 1.1 Problemstellung . 1 1.2 Inhalt und Vorgehensweise . 3 2 Standards für Kalender im Internet 5 2.1 iCalendar und darauf basierende Standards . 6 2.1.1 iCalendar und vCalendar . 6 2.1.2 Transport-Independent Interoperability Protocol (iTIP) . 8 2.1.3 iCalendar Message-Based Interoperability Protocol (iMIP) . 8 2.1.4 iCalendar über WebDAV (WebCAL) . 10 2.1.5 Storage of Groupware Objects in WebDAV (GroupDAV) . 11 2.1.6 Calendaring and Scheduling Extensions to WebDAV (CalDAV) . 12 2.1.7 IETF Calendar Access Protocol (CAP) . 13 2.2 XML-basierte Formate . 15 2.2.1 XML iCalendar (xCal) . 15 2.2.2 RDF Calendar (RDFiCal) . 16 2.2.3 RDFa (RDF/A) . 16 2.2.4 OWL-Time . 17 2.3 Mikroformate (hCalendar) . 18 2.4 SyncML . 20 2.5 Weitere Formate . 21 2.6 Zusammenfassung . 22 iii 3 Offene Kalenderanwendungen im Internet 24 3.1 Server . 24 3.1.1 Citadel/UX . 24 3.1.2 Open-Xchange . 26 3.1.3 OpenGroupware.org . 26 3.1.4 Kolab2 . 27 3.1.5 Weitere Server . 28 3.2 Clients . 29 3.2.1 Mozilla Calendar Project . 29 3.2.2 KDE Kontact . 30 3.2.3 Novell Evolution . 30 3.2.4 OSAF Chandler . 31 3.2.5 Weitere Open-Source- und Closed-Source-Clients . -
Freebsd Opengroupware - English
FreeBSD OpenGroupware - English FreeBSD As Basis For OpenGroupware.org PostgreSQL As Database FreeBSD can currently look back on a history of over 30 PostgreSQL, like BSD, originated at the University of Ca- years. It originated at the University of Berkeley and lifornia and is also distributed under the BSD license. It's FreeBSD evolved over a few intermediate steps into the project one of the oldest and most advanced object-relational founded in 1993 called FreeBSD. The supported architec- database management systems (ORDBMS) in the realm tures are the following: i386, amd64, Alpha, Itanium, of free software and looks back on a development of OpenGroupware.org SPARC, PPC (Mac) and others. over 15 years. PostgreSQL is largely conforming to the FreeBSD has very good support for multiprocessor sys- SQL92/SQL99 standards, that means that all functions in The ideal solution for professional the standards are available and behave as defined; that tems (SMP) and is distributed under the BSD license team communication on the Internet, which grants the user nearly every freedom and is free is not always the case with some commercial and non- commercial SQL database systems. of cost. Apart from having to name the origins of the with FreeBSD and PostgreSQL code, the user may use it in any which way he or she pleases. FreeBSD is a gift to humanity, we are pleased when you use it! FreeBSD has not only got many features, it also has a What is a groupware solution? huge amount of free and open software in its so-called Ports Collection. -
Auf Und Ab Groupware
08/2015 Die Entwicklungen bei Linux-Groupware – eine Zwischenbilanz Sysadmin Auf und ab Groupware 58 Der Groupwaremarkt ist ebenso groß wie schwierig: Microsoft Exchange und Lotus Notes halten die dicken Brocken fest, soziale Netzwerke und Google drängen nach. Freie Software kann gleichwohl auf schöne Erfolge verweisen, gerät aber immer wieder in die Opferrolle – meist wegen externer Finanzierung. Markus Feilner, Dirk Ahrnke www.linux-magazin.de Connect (Abbildungen 1 und 2). Obwohl einige Einzellösungen aus dem Linux- und Open-Source-Umfeld, zum Beispiel Spam assassin, Open SSL und Qt, inte- griert sind, vertreibt Kerio sein Produkt Connect vollständig und ohne jede Aus- nahme unter einer proprietären und rein © mahout, 123RF © mahout, kommerziellen Lizenz. Außer für Linux ist das Produkt darüber hinaus auch für Windows und Mac OS X erhältlich. Gerade Letzteres dürfte eini- ges zur Verbreitung beigetragen haben, denn für die Apple-Serverplattform gibt es relativ wenige Groupwarelösungen. Kerio hat zudem auch als einer der ersten Dritthersteller eine Implementierung der Exchange Web Services (EWS) geschafft. Unter OS X setzt mittlerweile nicht nur Outlook auf die HTTP-basierte Anbin- dung an Exchange. Seit OS X (Snow Leo- Vier Jahre her ist der letzte Groupware- sehen sich dabei natürlich Produkte, pard) lässt sich auch das zum Mac-Sys- vergleich im Linux-Magazin [1] – Grund deren Entwicklung (zum Teil) in einer tem gehörende Mail via EWS anbinden. genug, erneut den Blick auf die für Un- Community erfolgt – sprich Open-Source- ternehmen wichtige Collaboration-Sparte Software. Diese Einschätzung teilt die Caldav und Carddav zu richten, die allein in Deutschland rund Wagniskapitalbranche offenbar, denn in 700 Millionen Euro Jahresumsatz schwer die meisten Groupware-Unternehmun- Es sind allerdings nicht nur die alterna- ist. -
Pipenightdreams Osgcal-Doc Mumudvb Mpg123-Alsa Tbb
pipenightdreams osgcal-doc mumudvb mpg123-alsa tbb-examples libgammu4-dbg gcc-4.1-doc snort-rules-default davical cutmp3 libevolution5.0-cil aspell-am python-gobject-doc openoffice.org-l10n-mn libc6-xen xserver-xorg trophy-data t38modem pioneers-console libnb-platform10-java libgtkglext1-ruby libboost-wave1.39-dev drgenius bfbtester libchromexvmcpro1 isdnutils-xtools ubuntuone-client openoffice.org2-math openoffice.org-l10n-lt lsb-cxx-ia32 kdeartwork-emoticons-kde4 wmpuzzle trafshow python-plplot lx-gdb link-monitor-applet libscm-dev liblog-agent-logger-perl libccrtp-doc libclass-throwable-perl kde-i18n-csb jack-jconv hamradio-menus coinor-libvol-doc msx-emulator bitbake nabi language-pack-gnome-zh libpaperg popularity-contest xracer-tools xfont-nexus opendrim-lmp-baseserver libvorbisfile-ruby liblinebreak-doc libgfcui-2.0-0c2a-dbg libblacs-mpi-dev dict-freedict-spa-eng blender-ogrexml aspell-da x11-apps openoffice.org-l10n-lv openoffice.org-l10n-nl pnmtopng libodbcinstq1 libhsqldb-java-doc libmono-addins-gui0.2-cil sg3-utils linux-backports-modules-alsa-2.6.31-19-generic yorick-yeti-gsl python-pymssql plasma-widget-cpuload mcpp gpsim-lcd cl-csv libhtml-clean-perl asterisk-dbg apt-dater-dbg libgnome-mag1-dev language-pack-gnome-yo python-crypto svn-autoreleasedeb sugar-terminal-activity mii-diag maria-doc libplexus-component-api-java-doc libhugs-hgl-bundled libchipcard-libgwenhywfar47-plugins libghc6-random-dev freefem3d ezmlm cakephp-scripts aspell-ar ara-byte not+sparc openoffice.org-l10n-nn linux-backports-modules-karmic-generic-pae -
Open Online Meeting
Open online meeting Project report 2021 1 Content Page ➢ Objectives and background ○ Background, current situation and future needs 3 ○ Purpose and aim of the project 4 ○ Implementation: Preliminary study 5 ○ Functionalities 6 ➢ Results of the study ○ Group 1: Web-conferencing and messaging solutions 7 ○ Group 2: Online file storage, management and collaboration platforms 21 ○ Group 3: Visual online collaboration and project management solutions 30 ○ Group 4: Online voting solutions 37 ➢ Solution example based on the study results ○ Selection criteria 42 ○ Description of the example solution 43 ➢ Next steps 44 2021 2 Background, current situation and future needs Municipalities in Finland have voiced a need to map out open source based alternatives for well-known proprietary online conferencing systems provided by e.g. Google and Microsoft for the following purposes: ➢ Online meeting (preferably web-based, no installation), ➢ Secure file-sharing and collaborative use of documents, ➢ Chat and messaging, ➢ Solution that enables online collaboration (easy to facilitate), ➢ Cloud services, ➢ Online voting (preferably integrated to the online meeting tool with strong identification method that would enable secret ballot voting). There are several open source based solutions and tools available for each category but a coherent whole is still missing. 2021 3 Purpose and aim of the project The purpose in the first phase of the project was to conduct a preliminary study on how single open source based solutions and tools could be combined to a comprehensive joint solution and research the technical compatibility between the different OS solutions. The project aims to create a comprehensive example solution that is based on open source components. -
OSS-Baserade E-Postlösningar En Fallstudie
Institutionen för kommunikation och information Examensarbete i datalogi med inriktning mot nätverks- och systemadministration, 15 HP Grundläggande nivå Vårterminen 2011 OSS-baserade e-postlösningar En fallstudie Viktor Svensson OSS-baserade e-postlösningar Examensrapport inlämnad av Viktor Svensson till Högskolan i Skövde, för Kandidatexamen (B.Sc.) vid Institutionen för kommunikation och information. Arbetet har handletts av Björn Lundell. 2011-06-01 Härmed intygas att allt material i denna rapport, vilket inte är mitt eget, har blivit tydligt identifierat och att inget material är inkluderat som tidigare använts för erhållande av annan examen. Signerat: _______________________________________________ OSS-baserade e-postlösningar Viktor Svensson Sammanfattning Syftet med studien är att analysera möjligheter och begränsningar med att använda programvaror baserade på öppen källkod för att förvalta en organisations e-post där utkontraktering inte är ett alternativ. Detta baseras på tio krav som identifierats som relevanta i relation till e-postlösningar. Inom studiens omfattning representeras OSS (Open Source Software)-lösningarna av programvarorna Zimbra Collaboration Suite, Citadel och Kolab Server. För att undersöka styrkor och svagheter hos dessa har hybridmetoden action case tillämpats. Genom ett interpretativt och iterativt närmande har representanterna ställts inför de identifierade kraven och deras förmåga att leva upp till kraven har analyserats. Undersökningens resultat visar att majoriteten av kraven kan tillgodoses av lösningarna. -
Univention Corporate Server
Univention Corporate Server Manual for users and administrators Version 4.4-8 Date: April 20th, 2021 Alle Rechte vorbehalten./ All rights reserved. (c) 2002-2020 Univention GmbH Mary-Somerville-Straße 1 28359 Bremen Deutschland [email protected] Jede aufgeführte Marke und jedes Warenzeichen steht im Eigentum ihrer jeweiligen eingetragenen Rechtsinhaber. Linux ist ein eingetragenes Warenzeichen von Linus Torvalds. The mentioned brand names and registered trademarks are owned by the respective legal owners in each case. Linux is a registered trademark of Linus Torvalds. 2 Table of Contents 1. Introduction ....................................................................................................................... 13 1.1. What is Univention Corporate Server? ........................................................................ 13 1.2. Overview of UCS .................................................................................................... 14 1.2.1. Commissioning ............................................................................................. 14 1.2.2. Domain concept ............................................................................................ 14 1.2.3. Expandability with the Univention App Center ................................................... 15 1.2.4. LDAP directory service .................................................................................. 15 1.2.5. Domain administration ................................................................................... 16 1.2.6. -
Esa Study Contract Report
ESA STUDY CONTRACT REPORT ESA Contract No: Subject: Contractor: ESA ITT Number Current and Future Tech- Distributed Systems Group, AO/3-12280/07/NL/CB nologies for Collaborative Vienna University of Tech- Working Environments nology ESA CR() No: No of volumes: 1 Contractor’s Reference: This Volume No: 1 TEUN Abstract: This document reports the final, detailed result of the study on current and future technologies for collaborative working environments (CWEs). The goal of this study is to analyze current CWEs and whether they and their future trends are suitable for large- scale multinational organizations. To this end, we have analyzed the structure of large-scale organizations in general, and of ESA in particular, with respect to organization, geographical distribution, and IT environments. Requirements for CWEs used in collaborative work are presented. Based on an initial list of criteria given by ESA, we have revised and extended the list to introduce a comprehensive set of criteria for evaluating CWEs. The state-of-the- art CWEs are discussed and classified. We have selected 15 representative CWE products and evaluated and compared them in detail. From the evaluation and comparison of CWE products, we have presented our findings of current issues and future trends of CWEs. In particular, existing products provide many features required by large-scale and multinational organizations but those features are not well-integrated into a single system. Due to the complexity of collaborative work within those organizations, often many CWEs are used in parallel and it is not easy to integrate those CWEs together. The work described in this report was done under ESA Contract. -
Mailstore SPE 13 Manual
MailStore SPE 13 Documentation © 2020 MailStore Software GmbH 15. July 2020 Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks. While every precaution has been taken in the preparation of this document, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it. In no event shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused directly or indirectly by this document. Inhalt 1 Before You Start 1 1.1 Overview 2 Architecture 2 Scenarios 3 1.2 System Requirements 7 Hardware 7 Software Requirements 8 Network Requirements 8 1.3 Frequently Asked Questions 10 System Requirements 10 Use Scenarios 10 2 Installation and Setup 11 2.1 Installing MailStore Service Provider Edition 12 Installation Procedure 12 2.2 Single Server Mode Setup 13 Set Up Single Server Mode 13 2.3 Firewall Configuration for Single Server Mode 16 2.4 Multi Server Mode Setup 18 Multi Server Mode Setup 18 2.5 Firewall Configuration for Multi Server Mode 26 3 Using MailStore Service Provider Edition 28 3.1 Management Console - Logging On 29 3.2 Management Console - General 30 Dashboard 30 Instances 30 Safe Mode 32 License Information 34 SMTP Settings 34 3.3 Instance Management 36 Overview 36 Archive -
How to Install and Secure Egroupware
Need a license? or more flexibility? How to Install and Secure eGroupWare How To Install and Secure eGroupWare eGroupWare, why e ? decide for yourself, we could never pick one! enterprise, extended, extreme … groupware 2 How To Install and Secure eGroupWare The author and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liability is assumed for incidental or consequential damages in connection with or arising out of the use of the information or programs contained herein. This document is published under the: Creative Commons Attribution-ShareAlike License For information on obtaining permissions for use of this material from this work, please submit your request to Reiner Jung [email protected] Linux is a trademark from Linus Torvalds Red Hat, Red Hat Network, RPM are trademarks or reghistered trademarks of RedHat Inc. in the United States and other countries SSH and Secure Shell are trademarks from SSH Communication Security Inc. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in United States and/or other contries All other trademarks and copyrights referred to are the property of their respective owners expl0it labs offer packaging and open source security development expl0it press is responsible for publishing HOWTOs, white papers and more expl0it consulting offer security consulting in the enterprise Date published 5-Jan-05 3 How To Install and Secure eGroupWare Table -
Bürogemeinschaft Bitparade
02/2018 Kollaboratives Arbeiten mit Office-Suiten Titelthema Bürogemeinschaft Bitparade 26 Damit beim Austausch von Office-Dokumenten im Unternehmen alle Rädchen ineinandergreifen, buhlen inzwischen mehrere Anbieter von Office-Suiten mit Kollaborations-Features um Kunden. Cloud- oder On- Premise-Lösungen sollen die Arbeit im Team erleichtern. Erik Bärwaldt www.linux-magazin.de Arbeitsplatzrechnern keine Anwendun- gen installieren und betreuen, zugleich wartet de facto auf jedem modernen Computersystem ein Webbrowser. Als Nachteil schlägt eine potenziell geringere Zuverlässigkeit der Installation zu Buche: Fällt der Server aus, ist es nicht möglich, neue Dokumente anzulegen. Zusätzlich gibt es rein Cloud-basierte Programme, bei denen sowohl die Ap- plikationen als auch die Datenspeicher in der Cloud liegen. Der Vorteil: Server vor Ort zu installieren erweist sich we- gen der vielen Abhängigkeiten oft als umständlich und fehlerträchtig. Solche Clouddienste nutzen die Anwender hin- gegen als SaaS (Software as a Service, [2]). Dabei fällt die Installation einer Servervariante auf Systemen vor Ort weg © alphaspirit, 123RF © alphaspirit, (On Premise) – die Betreiber verwalten die Dienste komplett zentral. Dokumente im Unternehmen per E-Mail- Client-Server-Strukturen halten Daten, Anhang von Mitarbeiter zu Mitarbeiter die ein Team gemeinsam bearbeitet, Neuland zu schieben, das empfinden viele Team- auf einem Server vor. Auf den Clients worker heute zu Recht als „so 90er“. Kein tummeln sich die entsprechenden Appli- Geht es um das Bearbeiten von Texten, Wunder: Office-Suiten ermöglichen ganz kationen, die dank des Mapi-Protokolls Tabellen und Präsentationen, spielen neue Formen kooperativer Arbeit, oft (Messaging Application Programming Groupware-fähige Lösungen noch nicht über die Cloud- oder Vor-Ort-Server. Der Interface, [1]) die gemeinsame Arbeit an so eine Rolle wie bei traditionellen kolla- Artikel richtet seinen Blick auf den recht den Dokumenten ermöglichen. -
Storing Personal Information Management Data
Storing Personal Information Management data Akonadi - unifying PIM data for KDE Robert Zwerus ([email protected]) Graduation committee: dr. ir. Djoerd Hiemstra University of Twente Pavel V. Serdyukov, M.Sc. University of Twente prof. dr. Peter M.G. Apers University of Twente Till Adam KDE Volker Krause KDE Copyright c 2007 Robert Zwerus. Permission is granted to copy, distribute and /or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled “GNU Free Documentation License”. Abstract Storing Personal Information Management (PIM) data is not trivial, because of the variety in content types. Existing PIM storage systems have shortcomings in performance, data concistency and/or concurrency. In this thesis, we propose several optimisations and test them in Akonadi, KDE’s new central PIM data access manager. The optimisations include using the D-Bus protocol for trans- mitting short commands and notifications and an IMAP-compatible protocol for data access and modification. The PIM data is kept in its native format, but compressed and split up into separate, frequently-used parts for increased per- formance. Both the synthetic and use case based evaluation results show that the proposed modifications perform well and help maintain data consistency in Akonadi. i Preface Welcome to the thesis belonging to the final project that concludes my studies of Computer Science at the University of Twente! The final project is overseen by the Database group, with Djoerd Hiemstra and Pavel Serdyukov as mentors.