seeking help to install fog server on a isolated network


  • Hi ,

    I have a physical cisco switch with a physical ubuntu server and I would like to set up a isolated network for deployment using fog please share with me how to set up the ubuntu server as dhcp dns and fog server

  • Senior Developer

    @jonathanho92 There is no “offline install” which is why we said you need to have an internet connection when you’re performing the install.

    FOG uses many different tools, and as those tools are different between OS’s, the installer relies on the OS’s package management tool to download and install them using a more native approach.

    This is why we told you there is a need for internet connection.

    This is why we never said, at any point in our communications, any set of instructions that could even be perceived as “We have an offline installer”.

    It’s why I told you:

    To install FOG, you will need an active network connection.

    Maybe I should’ve been clearer in stating “Active Internet Connection” but

  • Moderator

    @jonathanho92 What I would recommend is that you install a second network adapter in your FOG server. That second network adapter can be use for FOG server management as well as application install, while the primary network adapter is used for imaging on an isolated network.

    That secondary network adapter needs access to the internet for installing the software. Once the install is done then you can remove the second network adapter, or if you want or continue to use it for FOG Server management from the business network leave it installed.

    I can tell you that the FOG program doesn’t behave well if you change the IP address of the imaging network once FOG is installed. So you need to avoid doing that.


  • @sebastian-roth how do i go about the offline install i understand that the server need internet when installing fog ?

  • Senior Developer

    @jonathanho92 said in seeking help to install fog server on a isolated network:

    thanks for your information do you have the offline installer to install fog project ?

    no


  • @sebastian-roth thanks for the information


  • @tom-elliott thanks for your information do you have the offline installer to install fog project ?

  • Senior Developer

    @jonathanho92 What have you looked for? While we don’t mind helping, you’re essentially saying, I wanna do this, but you guys need to do it for me.

    1.) Why must you use Ubuntu? You could Use Arch, Debian, Mint, Fedora, CentOS, RedHat, or Manjaro. If you must use Ubuntu, use whatever the most current is. We don’t track stability. All we do is ensure our installer will work for certain versions with certain versions of FOG.

    2.) I don’t understand your question. If you’re looking for DHCP for network on the server, I’d highly suggest using a static IP address, or reserving and IP address for the FOG Server. If you mean, should you install DHCP server on Ubuntu before installing FOG? Probably not, if you are going to use FOG as the DHCP server, then you should let the installer handle the configuration and installation of this. (FOG does this already.)

    3.) Again, I don’t understand your question. To install FOG, you will need an active network connection. So if you mean, to install, should DNS be configured, yes, as a part of your Static network setup, or Reserved you will likely receive dns from the server. If you mean, for FOG on my isolated network: No, you should not configure DNS for Ubuntu as the FOG Installer, again, will walk you through this.

    4.) Machines?

    5.) FOG Installer will handle this for you.

  • Senior Developer

    @jonathanho92 said in seeking help to install fog server on a isolated network:

    1. which is the most stable version of ubuntu ?

    Not exactly sure if it’s the most stable ever but the current long term release is Ubuntu 20.04. Give that a try if you want to use Ubuntu.

    1. Should I configure dhcp on ubuntu before installing the fog server ?

    This question can be missleading. Looking at your question number 5 I would expect your mean the network settings of your Ubuntu server here. Best is to configure a static IP address for your FOG server. Make sure it has an IP set before you run the FOG installer.

    1. should i configure dns for ubuntu ?

    FOG does not depend on DNS. I would say you skip that for now and see if you want to get back to it when your FOG server is up and running.

    1. is there anything that is required other then switch, server and router ?

    Well you’ll probably need client machines (called hosts in the FOG world) to capture and image from and deploy to.

    1. How do i configure the dhcp server ?

    No, the FOG installer will take care of this for you.


  • @tom-elliott Hi thanks for reply I have through this but it doesn’t solve the problem I had and list them below.

    1. which is the most stable version of ubuntu ?

    2. Should I configure dhcp on ubuntu before installing the fog server ?

    3. should i configure dns for ubuntu ?

    4. is there anything that is required other then switch server and router ?

    5. How do i configure the dhcp server ?

  • Senior Developer

    @jonathanho92 While the article is pretty old in comparison to where we are at with fog, the basic premise of the information is still pretty accurate.

    https://wiki.fogproject.org/wiki/index.php?title=FOG_on_an_Isolated_Network

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