iOS NSFileManager check for file or directory

Quick question. I am checking to see if a directory exists on my server. Would I use NSFileManager or something with NSURL? I have been reading the docs but I am not sure if NSFileManager can be used to check if files or directories exist at a give website?

Was not sure if NSFileManager was used for internal computer / iphone file searching or if it is irreverent where it searches for files, web or internal directories?

Thanks!

OK, that would explain why it cant see a directory I created on my server and it is returning false.

Thanks.

ahhh, it is more complex then I thought. I used Transmit ftp program to create a folder on my site. Before I start to load images and text files I wanted to verify that the folder existed first before it tried.

I used the NSFileManager to locate files and folder on my Mac and iPhone but not the web yet. It got confusing for me today reading the docs because it seems you can use fileAtPath and fileAtRUL to accomplish the same tasks, on the computer or iPhone. I thought fileAtPath, which I use, was for searching for files and directories within my computer / iPhone and anything URL was the internet.