Ciprian Dorin, Craciun wrote: > Hello all! > > Today I've played around with NBD (Network Block Disk), and > qemu-nbd (a NBD client that exports QEMU disks as NBD's). > > My problem is the following: both NBD kernel module and qemu-nbd > implementation expect to use a socket in order to communicate. > This means that in order to securely tunnel the connection over > SSH (OpenSSH), I need an intermediary process that creates a socket > and forwards all input / output between this socket and stdin / stdout > (which are in fact pipes received from OpenSSH). > > My question is: can I somehow make the pair of stdin / stdout seem > as a socket to the Linux syscalls (read and write)? (I would have to > make stdin / stdout pair look like a single file descriptor.) (This > would eliminate the intermediate process that just pipes data, and > thus reduce the overhead.) >
Something like socat should to do the trick. For instance, if you have qemu-nbd on localhost:1025: ssh -l user hostname.com socat stdio tcp:localhost:1025 Alternative, you could just do ssh based port forwarding. For instance: ssh -l user -L 1025:localhost:1025 hostname.com And then connect locally with nbd-client Regards, Anthony Liguori ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
