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Architecture
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Basic setup
Opinio can be configured to run in different environments. Examples of
various configurations are outlined below. The first example shows Opinio,
Web Server and Application Server - all on the same system. On these examples,
the database is running on a different server, but this could also be running on the same
physical machine.
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Advanced setup
A more complex architecture, with Opinio (and Application server) running
on a dedicated system. The web server is running on a separate machine, configured
to forward requests to Opinio. This also illustrates that Opinio can be configured
to talk to an LDAP directory for survey and admin authentication.
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Clustering
A advanced and scalable setup with multiple Opinio installations configured as a cluster.
Each instance of Opinio runs as a cluster member, meaning they coordinate
traffic and synchronize data and cache to form a coherent, single survey application.
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