[SunHELP] Protocol help

[Rahul Torvi]

Hi All,
I want to transfer files from client machine to server(over wan) . What
i want to know is is there any protocol other than ftp/http..etc..which
do not use IP as backbone. for example. x25. (I m not sure i can use
this but just an example). Can anybody list the summary protocols that i
can use for this purpose and if possible also the implementation of the
same in linux.

Many thanks in advance 

Best Regards
Rahul T