HP UX Common Internet File System (CIFS) Client/Server Software manual Summary

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verify this by having the client attempt to directly connect to the referred server and share returned in the trace, i.e. ‘mccall\shared_stuff’ as shown below using the command prompt window on the client.

Figure 15: Using the cmd window to test for valid username/password directly to the referred server

At this point, you should have the client contact the administrator of the ‘mccall’ server to set up the necessary username and password for appropriate access to this server.

Summary

HP CIFS Server (Samba) is capable of hosting MS DFS roots. The links in these roots can be used to create a single share that will allow clients to access shares on multiple discrete servers across the Windows enterprise. Since the HP CIFS server does not participate in connecting the client directly to the referred shares other than to provide the client with the server (node) name and sharename, the clients availing themselves of this share must be able both to resolve the server name provided in the MS DFS referral and possess the appropriate credentials, username/password to connect to the share on the referred server. If your clients have difficulties following a MS DFS link you have set up, oftentimes a network trace of the attempt will be helpful in determining the reason for the failure.

MS DFS also provides some possibility of redundancy by configuring referrals to multiple servers from the same MS DFS link. Remember that in using this it is your responsibility to keep the data on the various shares in-sync. This is important since from a client standpoint, there is no simple way of telling WHICH referral in a multi-referral MS DFS link was followed.

Finally, in versions of HP CIFS Server based on Samba 3.x (A.02.01 and above) new MS DFS functionality has been introduced with the smb.conf parameter ‘msdfs proxy’. This parameter will allow you to set up a SHARE that will be treated as a MS DFS link to a share on another CIFS server.

For more information

The Official Samba-3 HOWTO and Reference Guide, by Terpstra and Vernooij (Prentice Hall) also available online at:

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Contents Page Test environment What is MS DFS?Gives us a picture of our test environment Configuration detailsHost msdfs = Yes Page Shares and files on Ceres and Mccall Testing our MS DFS environmentMS DFS links linka & linkb When we click on the ‘linkb’ folder, we get How it works Contents of linkaPage Redundant MS DFS links Page Problem 1 The network path was not found Troubleshooting MS DFS on HP Cifs ServerPage Page \nbtstat -R Page Problem 2 Logon failure unknown username or password Summary Http//us1.samba.org/samba/docs/man/Samba-HOWTO-Collection XXXX-XXXXEN, 3/2005
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