Apple Mac OS X Server (Administrator’s Guide) - Manual (Page 265)

File Services 265
m See if there are any problems with directory services, and if the directory services server is
operating and connected to the network. For help with directory services, see Chapter 2,
“Directory Services.”
m Verify that IP filter service is configured to allow access to the appropriate ports. If clients
still can’t connect, see if the client is using FTP passive mode and turn it off. Passive mode
causes the FTP server to open a connection to the client on a dynamically determined
port, which could conflict with port filters set up in IP filter service. For a list of common
TCP and UDP ports, see “Port Reference” on page 540.
Clients Can’t Connect to the FTP Server
m See if the client is using FTP passive mode, and turn it off. Passive mode causes the FTP
server to open a connection on a dynamically determined port to the client, which could
conflict with port filters set up in IP filter service.
Anonymous FTP Users Can’t Connect
m Verify that anonymous access is turned on.
m See if the maximum number of anonymous user connections has been reached. To do
this, click the Networking tab in Server Admin, click FTP, then choose Configure FTP.
Where to Find More Information About File Services
For more information about the protocols used in Mac OS X Server file services, see these
resources:
m Apple Filing Protocol (AFP): www.apple.com/developer/
m Server Message Block (SMB) protocol ( for Windows file services): www.samba.org
m FTP: You can find a Request for Comments (RFC) document about FTP at the following
Web site: www.faqs.org/rfcs/rfc959.html
RFC documents provide an overview of a protocol or service that can be helpful for
novice administrators, as well as more detailed technical information for experts. You can
search for RFC documents by number at this Web site: www.faqs.org/rfcs
To obtain the UNIX manual pages for FTP, open the Terminal application in Mac OS X. At
the prompt, type “man ftp” and press the Return key.
m NFS: To obtain the UNIX manual pages for NFS, open the Terminal application in
Mac OS X. At the prompt, type “man nfs” and press the Return key.