[Chugalug] Linux VM Host Choices
mk6032 at yahoo.com
Sat Mar 15 01:01:41 UTC 2014
Maybe this will help? I have a block of WAN IPs and ..
kvm_host : $wan_ip1 is eth0 nic
kvm_host bridge eth0 as br0
now on the cli I create the equiv of a vswitch with ..
$ sudo brctl addbr br1
$ sudo ifconfig br1 up
$ sudo virt-manager
create pfsense vm with two nics, view/details, change the vnic0 to br0,
vnic1 to br1. pfsense uses vnic0/br0 as the 'wan' interface and
vnic1/br1 as the 'lan' interface.
create lamp vm with 1 nic assigned to br0 and assign $wan_ip2.
on pfsense forward wan port 80 to lan $wan_ip2
On 03/14/2014 07:24 PM, Joseph Simoneau wrote:
> I've just noticed weird behaviors when you're actually using virtual
> networks, especially in routed mode.
> It almost seems like there's a firewall that I can't find a way to
> control and that limits access to VMs, seemingly regardless of any
> virtual routers you've set up.
> It mostly came up when I was building a small virtual NAS to test
> btrfs... when the VM was on a bridged adapter or host only, all was
> well. When I did it any other way, scanning and connecting (from the
> host) behaved as if there was something blocking NFS and iSCSI, but
> not ssh, etc., even with iptables off, regardless of virtual routers.
> I also could just have been missing something, but it wound up a lot
> more of a pain than doing the same thing with a physical L2/3 switch,
> which doesn't seem ideal.
> On Mar 14, 2014 6:49 PM, "Matt Keys" <mk6032 at yahoo.com
> <mailto:mk6032 at yahoo.com>> wrote:
> The statement "it forces some choices that seem suboptimal once
> things get big or odd" has peeked my curiosity. Would you mind
> elaborating on that, particularly what you mean by big or odd?
> On 03/13/2014 09:35 PM, Joseph Simoneau wrote:
> My homelab is currently on KVM, and it's alright. Compared to
> VMware workstation, the network setup is weirder and possibly
> If I were starting over today, I'd try ESXi (managed with
> workstation) and xen. I wouldn't rebuild with KVM because it
> forces some choices that seem suboptimal once things get big
> or odd.
> The big plus with KVM and Xen, as I see it, is that you can
> use Ceph or something like it for the datastore instead of
> just direct disks or a NAS/SAN that adds other complexities.
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