On Sat, Jul 2, 2016 at 11:05 AM, Andrew David Wong <[email protected]> wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > On 2016-07-02 05:30, Franz wrote: > > With Qubes release 3.x, having USB controller(s) default assigned > > to sys-usb and Xen meddling checking shared resources between > > different USB controllers, it is even more difficult than R2 to > > use external USB music hardware, either for output or input. > > > > So I wonder: why not using sys-usb as a music hub? Everything is > > already assigned and all you have to do is plug in external USB > > devices. > > > > Well, now all music I'm playing on other hardware are mp3 > > downloaded from internet, which means sources that I cannot > > control and eventually compromised. So this may result in > > compromising sys-usb. Consequences? I do not know, but I do know > > that the color of sys-usb is default red, so this may not be a > > mayor problem. > > > > What do you think? > > > > I have seen that default sys-usb does not has a sys-net VM. It may > > be possible to leave it as it is, playing music saved on a USB > > medium, or it may be even more convenient to connect sys-usb to a > > sys-net VM to directly play music from youtube, internet radios, > > etc. Would you do that? > > > > Best Fran > > > > - From a security perspective, I think you're right. sys-usb and sys-net > (in some cases, they may be combined) should be assumed to be > compromised, which means that we should assume that an attacker could > be using sys-usb to do anything (including play music files). If we're > already assuming that an attacker could be doing this, why shouldn't > you (the actual owner of the system) not do it yourself, if you want to? > > - From a practical perspective, your performance may not be very good if > memory balancing is disabled and a low amount of memory is assigned to > the VM, so you may want to adjust this. (You wouldn't adjust this to > benefit an attacker, though, so the analogy may start to break down > here.) > Thanks Andrew, the most lightweight music player I could find is Deadbeef, which is even portable, so no need to install it in template. It works perfectly with the default memory setting of sys-usb. I had to install also pavucontrol in template to be able to rise the volume in sys-usb beyond the maximum of Deadbeef. Really great sound now with very little work!! :-)) My dogs are alarmed hearing loud music in my room. Just a small detail, is there a way to use QM "run command in VM" to launch the script that starts portable Deadbeef? Best Fran > > - -- > Andrew David Wong (Axon) > Community Manager, Qubes OS > https://www.qubes-os.org > -----BEGIN PGP SIGNATURE----- > > iQIcBAEBCgAGBQJXd8pHAAoJENtN07w5UDAwqJYP/2n4dkvRYPinkD0XpBlrvE5Y > mGAZ5r9ILgngl+J1GnbsSsVZ1LroxuB5IeRfoZKNIJ6YvpSXfrDzg3bo1L/9jP8y > ItpynJyyZB5VPN7d3QVLgbjef0M1efOgNGz0LppowbmZVCbYqniE3m0bKvbbPGPp > 2VFM+qS6jkWiTQxsiGzPiDH0nCiMV7DO5V8Sin84gsWpi+C7/MAC/aE0pXqabPXB > 7krqH6gSV73cXMOTjVrlMdtudoVShC0GrTvUEnLgjZekGkAat/6t/QgNXYtg85Ba > 0b2SeRZYL0jbQvbRJdrzkRl7sPc/MNBo6SAaIYAE7m80lBRLfNmHCR+2KZfFO1oB > 4OCK5MzwMCSedZACntEz6YIxo5EmuIcXJhit3Lch4YNaWoVLlWpiPZuEV0Zde7MN > ygJJqL7OT1uJJiwBIMSP8nDigz0noyGsmKAS4ETD8G1dCAmxQUUObsvl8gqnrPyh > o+Y+aXr4OkYVK4U5fZVZAxNtyuhZXzy1Qy9CxsAJJEODIr7kWq0SLKudCJQrOKyc > 6bpNO6kj4tKx/2J3hh7tsOHrm5CJAgdohN97lbEKHjMNJSp3vuCa6Hb3t9xhmBgS > g19C/WyeScqFjiNUqX+PvAEo/mleu2+npXlR6LpeITCtgdgQuoeIuN3EMvbgIZo7 > kF6sJ6taZjwyPDOEOKSk > =vWLK > -----END PGP SIGNATURE----- > > -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CAPzH-qDUxH4VMQ4KPUZCyZ%3DrerGAsVxA4tC33BdgA_Nr1EzgOw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
