Dale, If the one on the mainland is intended to be read-only-just the OPAC, with no one placing reserves or anything-then you could do this pretty easily with a MySQL replication slave on the mainland server. Tell the mainland OPAC to look to that slave server, and the one on the islands to look to the master. Only the MySQL replication traffic would have to go back and forth. When the net link is up and moving pretty well, the replication would be almost instant; MySQL can be taught to be tolerant of dodgy links, particularly on one-way replication like this. The basic premise here is to let MySQL do the work of hauling the data across the water for you; neither Koha instance has to worry about it, and once it's set up and happy, neither do you. Installing the whole Koha is easy, and separating out the OPAC would be a bit harder, so I'd just do that, and not define a web virtual host to point to the staff client pages. Here's a link on setting up one-way asynchronous replication that might be some help to you: http://dev.mysql.com/doc/refman/5.0/en/replication.html You present an interesting use case here; I hope it goes well for you. Good luck! J. David Bavousett Open Source Software Engineer P | T | F | S From: koha-bounces@lists.katipo.co.nz [mailto:koha-bounces@lists.katipo.co.nz] On Behalf Of Dale Foster Sent: Tuesday, July 07, 2009 7:11 PM To: koha@lists.katipo.co.nz Subject: [Koha] Multiple Web OPACs Goal: To allow Internet access to the library's OPAC. Challenge: We are a small research library located in the Galapagos Islands. Internet connectivity is both intermittent and slow out here in the South Pacific, so opening our webserver to the world is not a viable option. We are in the process of installing Koha on our Intra-net webserver. We have contracted for webhosting on a faster connection/server on the mainland of Ecuador and can install Koha there. What is the best configuration for running two Koha OPAC's at different locations? What is the best way to exchange the data between the two locations? Do we need to do a complete installation of Koha on the mainland server, or is there an easy way just to install the webserver/OPAC module? I look forward to hearing for anyone who has attempted a similar project. Thanks, Dale Foster Bibliotecario Voluntario / Volunteer Librarian Fundación Charles Darwin / Charles Darwin Foundation (AISBL) Puerto Ayora, Santa Cruz Galápagos, Ecuador Tel. (593-5) 2526 146/147 ext. 118 dale.foster@fcdarwin.org.ec www.darwinfoundation.org