Server Configuration > Global Development Using a Proxy > Minimum Configuration Requirements > Limitations for Mixing Operating Systems
  
Limitations for Mixing Operating Systems
There are certain limitations for FSA due to differences in the way Windows and Linux handle file naming. Linux is case sensitive and allows two directories or files at the same level with the same name, but differing in case (for example, DIR and dir). Windows is not case sensitive, and maps two such objects to the same object. In this situation, cached data may be incorrect.
In this case, working with members that have the same name, but differ in case can cause potential problems with the member revisions that are selected for the archive. Proxy-side aliases are case sensitive when matched from the client.
For example, problems with member revisions can occur if a file name varies only in case (such as a file named header.c and one named HEADER.C) and information is passed from a Linux client through a Windows proxy to a Linux Windchill RV&S server.
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For the proxy, choose an operating system with the same case sensitivity as the operating system of the host Windchill RV&S server. For example, you could use a Linux Windchill RV&S server with proxies that all operate on Linux.