Sorry, I copied/pasted when I should have cut/paste. I apologize.

rod

On 1/26/22 10:28 PM, Rod Rodolico via Dng wrote:
> Ok, on my chromebook, under the Linux subsystem, I have a mac of
> 00:16:3e:xx:xx:xx:xx
> Which is the signature for a XenSource virtual MAC address. See
> https://maclookup.app/search/result?mac=00%3A16%3A3e or
> https://dnschecker.org/mac-lookup.php?query=00-16-3e
>
> This indicates to me that this is a virtual, which I verified by
> apt -y install virt-what
>
> virt-what
>
> Which returned that it was running either lxc or kvm. I'm betting kvm.
>
> In this case, the virtual (the Linux subsystem) will be running under
> something like libvirt, with the network in bridge mode, and the Linux
> subsystem getting an IP from the DHCP server on that machine. So, your
> mac and IP will not be visible to the outside. (I do a lot of
> virtualization, BTW). Think of your Chromebook as a baby router.
>
> Your router can only set the IP on the chromebook, not the Linux
> subsystem. If you open the browser to chrome://system, and go down to
> ifconfig, then expand that, you'll see something like arc_ns0, arc_ns1,
> etc... Those will all be in the range that ChromeOS is using for your
> Linux subsystem. On my machine, arcbr0 is the actual bridge. Then, you
> keep going down and, on my system, I find wlan0, which is the NIC for
> the actual Chromebook.
>
> On 1/26/22 4:48 PM, o1bigtenor via Dng wrote:
>> On Wed, Jan 26, 2022 at 1:04 PM Rod Rodolico via Dng <dng@???> wrote:
>>>
>>> FYI, I'm doing the same thing. I have spent some time setting up a
>>> Chromebook "securely" (in theory), though mainly to access a Linux
>>> Terminal Server over a VPN.
>>>
>>> First, are you using the built in Linux subsystem? When I bring up the
>>> ChromeOS terminal (ctrl-alt-T, not the linux subsystem), the crosh
>>> prompt does not have the ip or the ifconfig commands. However, when I
>>> look at my network connection (via the GUI), I'm seeing an IP in my
>>> network range.
>>
>> I have used the 'dev' mode and set up debian in it.
>> Not used to pure command line (long ago Mac background spoiled me for
>> that) so I'm trying to install a dual boot system. One issue is that the
>> screen keyboard doesn't (on a Lenovo 10e (IIRC) chromebook anyway)
>> have control and alt keys so that means there are some things that are
>> too 'kinky' to do.
>>>
>>> I went ahead and installed the Linux subsystem again (I'm spending a lot
>>> of time playing on it) and my IP for that is 10.115.92.205/28, so it
>>> looks like the Linux subsystem is using using some kind of virtual IP,
>>> similar to what virtlib does by default.
>>>
>> Well - - - the MAC address the machine gives is different than that at
>> the router and the ip address at the router keeps changing - - argh!
>
> Ok, on my chromebook, under the Linux subsystem, I have a mac of
> 00:16:3e:xx:xx:xx:xx
> Which is the signature for a XenSource virtual MAC address. See
> https://maclookup.app/search/result?mac=00%3A16%3A3e or
> https://dnschecker.org/mac-lookup.php?query=00-16-3e
>
> This indicates to me that this is a virtual, which I verified by
> apt -y install virt-what
>
> virt-what
>
> Which returned that it was running either lxc or kvm. I'm betting kvm.
>
> In this case, the virtual (the Linux subsystem) will be running under
> something like libvirt, with the network in bridge mode, and the Linux
> subsystem getting an IP from the DHCP server on that machine. So, your
> mac and IP will not be visible to the outside. (I do a lot of
> virtualization, BTW). Think of your Chromebook as a baby router.
>
> Your router can only set the IP on the chromebook, not the Linux
> subsystem. If you open the browser to chrome://system, and go down to
> ifconfig, then expand that, you'll see something like arc_ns0, arc_ns1,
> etc... Those will all be in the range that ChromeOS is using for your
> Linux subsystem. On my machine, arcbr0 is the actual bridge. Then, you
> keep going down and, on my system, I find wlan0, which is the NIC for
> the actual Chromebook.
>
>> I would like to use this thing for reading pdfs away from my desk but
>> I'm not sure how to get things onto it. The expectation is that I'm going
>> to use ms googly's drive or dropbox - - - no cottin pickin way!!!!!! to
>> both. I use scp on my network but that means I need to know the ip
>> address and be able to ssh into or out of it - - - I can't.
>> The ssh port (#22 IIRC) is blocked - - - how's that for stupid. Likely
>> everything is blocked but ms googly's stuff - - - that's the idea behind
>> android anyway AFAIK - - - I'm not impressed. Although - - - if I really
>> don't like this thing I think my wife might like it but then I wanted a tablet
>> she's already got one (LOL)!
>
> I use the Nextcloud app to connect to my nextcloud instance. Works
> pretty well.
>
> 1. However, I did install Ghost Commander, which is a Commander type app
> that will do an SFTP connection. I used that to copy some files locally.
>
> 2. Additionally, if you open the ChromeOS File Manager, open the three
> dots in the upper right, then go to Services, you'll see the ability to
> make a connection to an SMB File Share, if that is an option.
>
> 3. Or, do what I finally broke down and did. I picked up a 256G Cruzer
> Fit USB drive (small form factor), plugged it into my computer, copied
> all my e-books, music and several movies, then plugged it into my
> Chromebook.
>
> BTW, I'm not sure Ghost Commander is available in the standard Google
> Play Store. I get a lot of stuff from F-Droid (https://f-droid.org/).
> Used it a lot on my Android devices, but was a total PITA for ChromeOS.
> Let me know if you want the instructions.
>
> I don't know how many other people would be interested in this, so if
> you want, we can take the discussion off list. Or, if anyone in the list
> wants to have the blow by blow, let us know and we'll keep it in the list.
>
> Rod
>
>>
>> Thanks for the tips!!
>>
>> Regards
>> _______________________________________________
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>>
>

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Rod Rodolico
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