compare/diff two directory in two different linux/unix machine

Hi,
I have two server , one linux and one unix .
I want to compare two different directry in them .
What command or tool I can use instead of search the dir one by one ???
thank

That depends on how you want to compare them. Do you want to compare them on a file name basis? Size basis? binary hash basis?

Do you need to compare them side by side? Then you may need something like nfs or cifs mounting.

Hi,
I just want to comapre the difference in the directory and su-directory in two machine ......only the name of directory ....
any suggestion , easy way to do it ???

Are you looking for ways to connect to the machines or for logic to do the comparison?