On Monday, April 10, 2017 at 5:06:30 PM UTC-4, qubenix wrote: > qubenix: > > Andrew David Wong: > >> On 2017-04-09 15:25, Joonas Lehtonen wrote: > >>> Hi, > >> > >>> if you setup MAC randomization via network manager in a debian 9 > >>> template as described here: > >>> https://www.qubes-os.org/doc/anonymizing-your-mac-address/ > >>> you still leak your hostname. > >> > >>> Once your MAC address is randomized you might also want to prevent the > >>> disclosure of your netvm's hostname to the network, since "sys-net" > >>> might be a unique hostname (that links all your random MAC addresses and > >>> the fact that you likely use qubes). > >> > >>> To prevent the hostname leak via DHCP option (12): > >>> - start the debian 9 template > >>> - open the file /etc/dhcpd/dhclient.conf > >>> - in line number 15 you should see "send host-name = gethostname();" > >>> - comment (add "#" at the beginning) or remove that line and store the > >>> file > >>> - reboot your netvm > >> > >>> I tested the change via inspecting dhcp requests and can confirm that > >>> the hostname is no longer included in dhcp requests. > >> > >> > >> Thanks. Added as a comment: > >> > >> https://github.com/QubesOS/qubes-issues/issues/938#issuecomment-292843628 > >> > >> > > > > Nice. I was just thinking about this after spending some time on my > > routers interface. Thanks for the post! > > > > After testing this, 'sys-net' still shows up on my router interface. > > -- > qubenix > GPG: B536812904D455B491DCDCDD04BE1E61A3C2E500
Did the same test and got the same result. Anyone has a solution? I can always change my hostname for something else, but I would prefer not sending the hostname or finding a way to randomize it!!! Dominique -- 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/ec2607a9-c361-4043-b219-76e349f4a790%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
