Ubuntu – How to access Windows shares after changing DNS servers (e.g. switching to OpenDNS)

Your login should indeed be your login on the remote machine.

There is no way to allow general access to your home folder over the network without a password. If you want full access to your home folder, you must give your account a password. You can leave automatic login turned on if you simply don't want to type a password at startup.

You can, however, allow access to the Public directory in your home directory without requiring login. To do that, go to Network and Sharing Center⟶Change advanced sharing settings, turn on Public folder sharing, and turn off Password protected sharing (located under the Advanced Sharing Options section near the bottom).

The domain, if this isn't on an ActiveDirectory domain (which seems likely, since your account has no password), should be either blank or the word WORKGROUP in all caps.

If you've already used Nautilus to connect to the shares you're interested in, then the mounts for those shares are available in ~/.gvfs

So I've gone to my nautilus and typed smb://192.168.1.10/data into my location bar, which has mounted the share. Then :

scaine@GroovyTosh:~/.gvfs$ ls -al
total 20
dr-x------  3 scaine scaine     0 2010-12-31 18:47 .
drwx------ 68 scaine scaine 20480 2010-12-31 19:42 ..
drwx------  1 scaine scaine     0 2010-10-05 19:57 data on 192.168.1.10
scaine@GroovyTosh:~/.gvfs$ 

If you need to list available shares, then as Danny says, you use smbclient. In my case, I use "share" security model (not recommended!), so I don't need the -U parameter :

scaine@GroovyTosh:~/.gvfs$ smbclient -L 192.168.1.10
Enter scaine's password: 
Domain=[Mine] OS=[Unix] Server=[Samba 3.5.4]

    Sharename       Type      Comment
    ---------       ----      -------
    Data            Disk      Core Data
    Backups         Disk      Daily RSnapshot backups
    IPC$            IPC       IPC Service (Core)
Domain=[Mine] OS=[Unix] Server=[Samba 3.5.4]

    Server               Comment
    ---------            -------
    CORE                 Core

    Workgroup            Master
    ---------            -------
    Mine                 CORE
scaine@GroovyTosh:~/.gvfs$