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migration from FreeBSD to CentOS

FreeBSD to CentOS

12:45 am on Dec 19, 2014 (gmt 0)

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I'm a client, not a developer. Years ago, I hired a developer to build a very robust online application for scheduling work shifts. He built the program for the FreeBSD OS v7.4 - which is what the hosting company used for their independent servers. Coding includes Apache, JavaScript and HTML. The developer has gone out of business and cannot be located. The web-hosting company has raised their prices a lot while lowering their support. So, I'm thinking of moving my app to GoDaddy. They use CentOS 6 for their independent servers. Since this is a very complex app as opposed to a website, I'm concerned about all of the functionality working. Has anybody has experience with migrating from FreeBSD to CentOS? Thx.
11:25 am on Dec 21, 2014 (gmt 0)

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I have had servers under both FreeBSD and CentOS. Currently I am only using CentOS. The main problem will not be the operating system or Apache, but you might run into problems if the application uses an SQL server as backend data storage. On CentOS MySQL is the default engine, but chances are that on the FreeBSD installation something else like PostgreSQL is used. You should therefore first check if, and which database server is used.