In my precedent answer, I suppose eth0 as RED, and eth1 as GREEN…
But it’s not forbidden to make eth0 as GREEN, and eth1 as RED… In this case, the modem routeur is not, as you suppose 192.168.1.0, but 192.168.1.253.
In never do the setup this way ( I always done a NetServer setup on a minimal CentOS), so I ask:
At this step, is the rules ( Red, Orange, …) are already done, or not yet?
Hi @Jim
I agree with you. It is depended on the situation. And frankly speaking to use NS as a modem is totally strange for me. To use NS as a modem is something for an expert not for me 
The setup should be design for non-expert user as you has showed at Fosdem. If you read @Ctek post he had the same experience as I that with the proposed gateway IP address the Nethserver can’ get internet access.
I understand the intention of Nethserver in that way that it is a software package every non-expert can setup a simple server for different application. This can be achieved with the GUI, templates (still missing) for different application and sufficient help menu.
The install procedure doesn’t supply any help. It is possible to add a help for every stage of the setup with sufficient information that the user can decide which is the right setting in his application.
I think the best way to make the setup easier for a non-expert, as you said, it’s to setup the first Nic in the computer, and totally ignore others NIC.
And at the first connexion to the GUI, to have a script to help decide the rules of the NethServer ( gateway / server only ) and after, setup the others NIC… Simpler and clear.
Yes this is a good idea.
Also a possibility is an additional expert setup option with the information
If you use this option you have to know what are you doing!
Sorry but I can’t get the issue here, the first Lan setup is used for: permit to go outside and be reached by webUI
Others NIC and roles should be configured afterwards using the network panel.
What’s not clear? @WillZen would you mind to describe your network configuration?
@alefattorini
During the installation the software try to connect with the internet. Id you apply a not valid gateway ID address it doesn’t work.
I had already this as a topic.
For the installation process before you can reach NS via the GUI an internet connection is necessary.
Hi Stefan,
The template address is just a convention.
As I have also mentioned, the Gateway has to be specified by the user!
Because this will be the default for LAN (green) address and if you do not have another gateway in your LAN. You can put the same address as the NS ip.
This is not for the RED! is only for Green (lan) and it is ok to asume the same if NS wil be in router/Gateway mode.
BR
Bogdan
@Ctek
Sorry, I cant understand than what was happen. With the wrong gateway IP the installation didn’t went well.
To consider the gateway address in different network configuration can be done with an help menu. At the moment is no help available we you can see at the picture.
As @alefattorini, and I already said… This is the setup for the second NIC ( eth1) on this screenshot
Stefan, As you can see in the image, The configuration is for ETH 1.
This means that it is for the LAN that will be behind the NS.
There are two (three*) possible cases:
1 the NethServer will be your gateway/Router for the LAN and then you set the GW address to the IP address of the ETH1.
2 There already is a Gateway machine, and you want to keep it in that lan. In this case you put the IP address of that Gateway (different than the IP address of the NethServer)
So to summarize: In most cases you can put the default IP of Nethserver in the IP field and the Gateway field since it will be the only gateway in your LAN.
Any other setting will be done via WebUI.
Anyway. I do not see how or what, menu/help button to be added in this screen.
One possibility is to make the description more detailed but that is about it, in my opinion.
The message should be something like :
"Set parameters for ETH x network interface that will be on LAN side or Green for your network"
instead of current:
“Parameters for network interface: eth1”
and the title maybe : “Green Network configuration”
I’d like to receive comments on an idea I’m developing about network setup during installation.
What do you think of setting only a single ip address on all network cards during installation?
The idea is to “bridge” all cards, you assign only let’s say 192.168.1.1 and connect to that ip via the server-manager. There, with the gui you “break” the bridge and assign all roles, ip and gateway.
This idea may have problems with some VPS, but I don’t know how common are multiple cards on VPS (I know of rackspace).
Hi Filipo, I think that this may complicate things.
Can be that some setups be disturbed by this. Or the users “forget” to un-bridge the cards and run into other issues.
Having the setup only ask for the LAN/Green card IP and Subnet only can be more attractive.
The rest of the setup can be done via WebUI after you connect the first time.
As @Jim has pointed out, we really need to know your network topology and what role you intend for NS and which interface you are trying to configure.
From your screen shots, it shows eth1, which “normally” would be your Green interface. If this is the case, then the IP must be on a different subnet than your router and the gateway should be ignored.
If it is the Red interface, then it would be correct to have the IP on the same subnet as your router and the gateway would be the router IP.
Cheers.
Hi Eddie, The screens are from the tutorial and Stefan was pointed out that the default setting for the GW is 253.
But yes, if it is in the LAN (Green) the GW can be ignored.
As posted before. The gw will not matter if it is the same IP as NS. And NS will be your default GW for the LAN.
@Ctek @EddieA @filippo_carletti @Jim
Sorry for my late replay. I was on the rod with really bad internet connection and than busy.
If I set up a computer I connect it with with my LAN which has connection via the modem to the internet. Mostly every software wants to have internet connection nowadays and CentOS as well. If the gateway not correct the connection fails.
I agree with that the current setting is correct for GREEN but CentOS expect at this port an internet connection. IMHO the current setup procedure is a contradiction.
If you skip the GREEN setup no IP address would be assign to any ETHx
Our idea of the network setup workflow during cd install is:
Replicating network setup during cd install is hard, complex and duplicated code to maintain.
Having said this, if we identify all the various scenarios of network setups, we could improve the setup process. But I’d prefer not to add patches over patches.
This ok but you should add this information in the manual. There is nothing about you thought and why is this in this way.
My request came from my expectation and it looks like it is different to yours. So I am coming back the documentation has to be improve. And you have to do something with the request of CentOS to search for updates after the installation. This is the reason I stated this topic.
I was thinking about adding it also in the installation panel, in a note like:
LAN IP configuration (additional zones/interfaces can be configured from the server-manager web gui)
Then, in the first configuration wizard, if you chose a gateway preset template you will be guided in configuring the wan interface.
As fare as I understood this would help to make it clear.
