[hllug] Re: Windows internet connectivity in Win4Lin

Don Crowder wrote:
> Lisa has no intention of using Windows online, its function is to
> support PSP 8.1 (I've mistakenly typed 8.2 a couple of times) so, once
> PSP was installed, I disabled the network connection and subsequently
> learned that this also disables XP's connection to its Linux host
> system.  Is there a way to block internet access to Windows without
> blocking its access to Linux?
> 
> It sure would be nice if I didn't have to mess with installing a decent
> firewall and AV software and she'd have a far leaner, meaner, faster
> Windows system as well.

Actually using the default networking support in Win4Lin, a firewall is
implemented. Win4Lin is really just a packaged version of QEMU & KQEMU, so
the documentation on the QEMU site is informative.

See "3.7.3 Using the user mode network stack" in the QEMU documentation.
http://www.nongnu.org/qemu/qemu-doc.html#SEC27

So, your a little more secure then I stated earlier in that there is
already a firewall running so you won't need to run one on your Virtualized
XP. Your Linux side IP address is the WAN as far as WinXP is concerned and
it's using NAT with an IP address set to 10.0.2.15 (the default).

If lisa's not going to read mail or accesses the internet, then you could
probably get by with just installing the free version of AVG as a precaution.

There are other ways to setup networking on Win4Lin such as setting up a
Bridge. In this case WinXP would have an IP address on the same subnet as
your Linux machine; essentially two interface cards would be seen on the
subnet, with one being a virtual interface. If this was the case, then you
could run a firewall on the Linux side and block all transactions from the
virtual interface to physical interface completely.


-- 
Lee Parmeter
http://www.bubbasgeek.com

"When it comes to Vista: just say NO! If you're not ready for Linux, buy a
MAC!" - Lee Parmeter
"God is not a republican or a democrat nor is His government a democracy!"
- Lee Parmeter
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