>
> If one is running a mail server and has it inside their firewall and if
> using one IP then t has to use NAT. Couldn't one presumeably use the setup
> above and run a mail server on Plan 9 and bypass having to use NAT? And
> also do the same thing for a web server?
Yes, I do that. The example you quoted creates two independent IP stacks,
starting with the default '#I0' IP stack on ether0, then adding a new IP
stack '#I1' connected to ether1 (#l1).
There is a separate TCP/IP, UDP/IP, ICMP etc for each stack. I also import
/net from a Linux server via Inferno (on Linux) so I can send mail from a
non-RBLd address.
You can create several types of virtual interface ("medium") on the IP
stack, connected to a user-mode process. See pkg and netdev in ip(3)
I still have a router with NAT though for non-Plan 9 machines. I never
got round to writing a NAT for Plan 9 (which could work in user mode).
On Fri, May 8, 2020 at 7:55 PM Robert Sherwood <robert.sherw...@gmail.com>
wrote:
> I love the idea of importing the external interface to get outside the
> network. When I first read about this in Plan9, that's when the system
> really "clicked" for me.
>
> On Fri, May 8, 2020 at 1:08 PM hiro <23h...@gmail.com> wrote:
>
>> you can also have multiple ipstacks, working ipv6 and what have you.
>> cinap fixed a bunch of stuff in this regard.
>>
>> it's much more like linux network namespaces now, no limits to your
>> creativity...
> *9fans <https://9fans.topicbox.com/latest>* / 9fans / see discussions
> <https://9fans.topicbox.com/groups/9fans> + participants
> <https://9fans.topicbox.com/groups/9fans/members> + delivery options
> <https://9fans.topicbox.com/groups/9fans/subscription> Permalink
> <https://9fans.topicbox.com/groups/9fans/Te43262c53bc71855-M5a51a5f17a7747f354e5309b>
>
------------------------------------------
9fans: 9fans
Permalink:
https://9fans.topicbox.com/groups/9fans/Te43262c53bc71855-M564a8de6042cb6713cc304bc
Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
