nbd fails with "Negotiation: Error: Server closed connection"
While experimenting with nbd ( network block device ) on Linux, I ran into connection failures, where both my server and client died: ** Message: virtstyle ipliteral ** Message: connect from 127.0.0.1, assigned file is /home/user/fs/image ** Message: Authorized client ** Message: Starting to serve ** Message: Size of exported file/device is 33554432 Negotiation: Error: Server closed connection Exiting. Error: Read failed: Connection reset by peer Exiting. Turned out, this was due to me starting the server using the command line options specifying the file to serve. ./nbd-server localhost:10809 /home/user/fs/image Apparently this simply does not work. Solution was to create the server config file and leave out the server command line options completely. [export] exportname = /home/user/fs/image authfile = /etc/nbd-server/allow Then run the client with the name specified in the config. sudo ./nbd-client -name export 127.0.0