-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Gordon Messmer Sent: Thursday, September 29, 2016 11:47 AM To: CentOS mailing list Subject: Re: [CentOS] Virtualization Networking
On 09/28/2016 08:43 AM, tdukes@palmettoshopper.com wrote:
I have one of those free domains/DNS from no-ip.com, centos7vm.ddns.net I plan to use as the host name.
I want to be able to access this VM from the internet.
...
This is what I was seeing. Either it lands on the DSL router's login page or the host's website.
If you only have one address, you'll need to configure port forwarding or
a
"bastion host" from that DSL router (whatever it supports). Your
"no-ip.com"
address will simply point at that host.
So, how much in the network setup for the new installation do I need to do? Do I need to go with NAT or bridged?
You have a couple of options for VMs that you want to access from the LAN. The best documented and probably most widely used is bridged. That one also probably requires the most setup:
https://access.redhat.com/documentation/en- US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/ch- Configure_Network_Bridging.html
https://access.redhat.com/documentation/en- US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Ad ministration_Guide/sect-Network_configuration-Bridged_networking.html
You can also use macvtap, which doesn't require the use of a special
bridge
interface, but you do have to enable hairpin mode if you want the KVM guest to be able to access its guests. I honestly can't find much useful documentation.
https://access.redhat.com/documentation/en- US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/ sect-attch-nic-physdev.html
Thanks, I am running 6.8.
For whatever reason, the default NAT setup no longer works. I got some kind of bridge network (mactap) setup that has access to the outside but I still can't connect locally.