Install Union Development Platform

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Union is a development platform for creating multiuser applications which runs in a central location on the Internet or a LAN. Users need to connect to Union server then users are in constant real-time contact or session. Users can send messages to/from Union Server.

Application may be chat, game, shared document, widget on web page. Developers can user union for web-development skills to create collaborative content cost-effectively and quickly.

Union is a development platform for creating multiuser applications and games in Adobe Flash, JavaScript, .net, Java, and other languages. Union is free for up to 1000 simultaneous users. Union handles low-level networking and data-synchronization responsibilities, and provides a rich, intuitive communications layer that lets developers focus on application logic, not packets and protocols.

Union Quick Start The Union Platform, By USER1

Union is a development platform for creating connected applications. You can use Union to build:

Social interaction: chat, meeting applications, multiuser whiteboards, collaborative editing tools.

Realtime Multiplayer Games: online action games, head-to-head racing, social worlds, online chess, massively multiplayer trivia, turn-based card and word games.

Realtime Datafeeds: live scores, realtime inventory availability, live surveys, realtime charts, graphs, and analytics dashboards.

Publish/subscribe Channels: topic-based news feeds, project notifications, celebrity chat, sports spectation, live real-estate listings, product sales updates.

Union applications run in desktop and mobile web browsers (JavaScript/HTML5), Flash, Java, C#, and dozens of other languages.

Union Quick Start The Union Platform, By USER2

Install Union on Linux Server

To run the Union Server you will need Java 1.6.

# java -version

Union Server on run on port 9100, Make sure port is open on server 😉

Download from here:

# wget

Decompress the Union Server distribution .tar.gz file

# tar -zxvf union_1.1.0.tar.gz

This will create a folder names /union

Add Java to your operating system’s path or edit the start-server script to point to your java binary.

# cd union
# chmod 775 *
# ./

Ouput may be like…

UNION_HOME set to [/Users/yourname/union/.]
Union Server 1.0.2 (build 498) Started….OK

Some JVM have memory issue, so limit the amount of memory used by Union Server, use the java command-line option “-Xmx”.

# java -Xmx512m -Dfile.encoding=UTF-8 -cp lib/union.jar:lib/stax-api-1.0.1.jar:lib/wstx-asl-3.2.6.jar net.user1.union.core.UnionMain start &

Customize Your Configuration

You can change Union Server’s administration password

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Sandeep Verma

I’m an Entrepreneur. I’m proud to work as Blogger, LAMP Programmer, Linux Admin, Web Consultant, Cloud Manager, Apps Developer, Searcher. Concentrate > Observe > Imagine > Launch