On Thu, Dec 26, 2019 at 11:47:37AM +0000, 'awokd' via qubes-users wrote:
There's a brief discussion at https://www.qubes-os.org/doc/networking/, but there may be more detailed notes in the source code for Qubes' VM networking components. Qubes uses Xen's networking, so that might be the best place to begin research.
What responsibilties does sys-net have in terms of forwarding DNS? The documentation specifies how things work for AppVMs, and it says there is no DNS server in the "network driver domain" (sys-net), but it does not say what sys-net actually has to do. Also, the docs don't appear to be entirely accurate. The documentation specifies a fairly complex set of routing tabels for the "network driver domain" (sys-net, I assume), but the actual routing table on my sys-net is fairly simple The table from the documentation: Destination Gateway Genmask Flags Metric Ref Use Iface 10.137.0.16 0.0.0.0 255.255.255.255 UH 0 0 0 vif4.0 10.137.0.7 0.0.0.0 255.255.255.255 UH 0 0 0 vif10.0 10.137.0.9 0.0.0.0 255.255.255.255 UH 0 [... many lines removed ...] 192.168.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 The table from my sys-net: [user@sys-net ~]$ sudo ip route [user@sys-net ~]$ sudo route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default _gateway 0.0.0.0 UG 600 0 0 wls7 10.137.0.5 0.0.0.0 255.255.255.255 UH 32747 0 0 vif5.0 192.168.0.0 0.0.0.0 255.255.255.0 U 600 0 0 wls7 It looks like the documentation is assuming sys-net has many more virtual NICs than it actually does? -- 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 qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/20191227070535.GA1464%40danwin1210.me.
