I've searched around but I think I'm spoiled by the hOWTO's so here I am asking for help. I have a fc9 x86_64 server  which has a script that call an external C compiled program which of course doesn't work anymore on 64bit since it's for 32bit (don't ask, not important). I have a remote server running centos5.1 x86  which has the same xternal program and it runs fine. both computers (64 and 32) are on the same local network. I want my php script on 64 to instead of calling the local external C progrm, to call the remote program on the 32 computer. (again, the calling of the program from php to C program is not an issue) My thinking was that all I need to do is setup a mapped/mounted drive to a dir on 64 and it would be fine...but I don't really know what I'm doing in terms of NFS (if that's even what I need). I don't want the 64 to login each time it needs to access the mounted drive on 32, I want it to be seemless since it's a webpage performing the access. hopefully I didn't make this too complicated. again, any help would be appreciated and detailed step by step would be awesome.