I used smbclient [...] -U once, and I entered some network credentials.
Now when I browse the server with Thunar (xfce file manager), it remembers the credentials I entered. How can I make the computer forget every username/domain/password I ever entered?
Xubuntu 11.10, most recent samba/everything updates.
smbclient
itself does indeed not remember the credentials by itself it seems, however, after I entered them once in smbclient, Thunar (xfce file manager) remembers them. So the caching is probably done by something other than smbclient. Sorry, the lack of information was my fault.