In OwnCloud settings (## Security & setup warnings) A bunch of safety comments.
Transactional file locking should be configured to use memory-based locking, not the default slow database-based locking.
Howto configure that server from here?
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You are accessing this site via HTTP. We strongly suggest you configure your server to require using HTTPS instead as described in our
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No memory cache has been configured. To enhance your performance please configure a memcache if available. Further information can be found in our
), and check for any errors or warnings in the [log]