DHCP issue PXE-E51

slashdotpwn

So I installed fog on a brand new install of Ubuntu 16.04. I may have accidentally set fog to do DHCP and I am not sure how to change that. When I try connecting to the server over ethernet to image a machine or to make an image I get the error.

Sebastian Roth

@slashdotpwn Please answer the questions and post a picture!

slashdotpwn

So I am not sure on which DHCP I set up I believe it was the default to be honest with you. 0_1504193380639_IMG_1929(1).JPG

Sebastian Roth

@slashdotpwn Looks like there is no DHCP server in that network at all. Edit /opt/fog/.fogsettings on your FOG server and try to find the line dodhcp='N'. Just change that to dodhcp='Y' and re-run the installer.

slashdotpwn

I don’t even have a .fogsettings file.

Sebastian Roth

@slashdotpwn Then simply re-run the installer and make sure you say y (yes) when it asks you if it should setup DHCP!

slashdotpwn

Okay now when I try to run the installer it says a previous version of fog settings is there. When I go to /opt/fog/ I see nothing.

Sebastian Roth

@slashdotpwn In Linux files starting with a dot are “hidden”. So you need to use the -a option with ls to actually see it. ls -al /opt/fog/ should show the file!

In case you want to edit it using a GUI editor you probably need to fiddle with the file explorer options to make it show hidden files.

slashdotpwn

Okay I was able to use CHOWN to take control and edit the file. Rerunning the installer. Wish me luck.

Sebastian Roth

@slashdotpwn On the console run sudo chmod 666 /opt/fog/.fogsettings && sudo chmod 777 /opt/fog/ (not nice but should fix this for you!)

slashdotpwn

Even after changing the fogsettings file it skipped the dhcp setup

Sebastian Roth

@slashdotpwn How do you run the installer? Best if you switch to the proper root account for running it. I’d say, remove the config ands start over:

sudo su -
rm /opt/fog/.fogsettings
cd /dir/where/fog/is
cd bin
./installfog.sh

slashdotpwn

Okay retrying the install now. Will let you know the results. Thanks for your patience by the way. I am usually pretty good with this kind of stuff.

slashdotpwn

When setting up the DHCP. It said no router address found. I am setting it up as a stand alone. What should I put in this case.

Sebastian Roth

@slashdotpwn What do you mean by standalone? Don’t you have a router/gateway in your network to access the internet? Just put in this address when the installer asks you for it.

slashdotpwn

It isn’t connecting to the internet though. I am setting a static IP and connecting to it that way.

slashdotpwn

Okay so I found out that dhcp was turned off. It looks like my dhcpd.conf file is maybe wrong. It looks like it isn’t assigning ip addresses. I am leaving the office for tonight. I will be back in the morning to hopefully figure this out.

slashdotpwn

dhcps.conf

# DHCP Server Configuration file\n#see /usr/share/doc/dhcp*/dhcpd.conf.sample
# This file was created by FOG
#Definition of PXE-specific options
# Code 1: Multicast IP Address of bootfile
# Code 2: UDP Port that client should monitor for MTFTP Responses
# Code 3: UDP Port that MTFTP servers are using to listen for MTFTP requests
# Code 4: Number of seconds a client must listen for activity before trying
#         to start a new MTFTP transfer
# Code 5: Number of seconds a client must listen before trying to restart
#         a MTFTP transfer
option space PXE;
option PXE.mtftp-ip code 1 = ip-address;
option PXE.mtftp-cport code 2 = unsigned integer 16;
option PXE.mtftp-sport code 3 = unsigned integer 16;
option PXE.mtftp-tmout code 4 = unsigned integer 8;
option PXE.mtftp-delay code 5 = unsigned integer 8;
option arch code 93 = unsigned integer 16;
use-host-decl-names on;
ddns-update-style interim;
ignore client-updates;
# Specify subnet of ether device you do NOT want service.
# For systems with two or more ethernet devices.
# subnet 136.165.0.0 netmask 255.255.0.0 {}
subnet 10.150.18.0 netmask 255.255.255.0{
    option subnet-mask 255.255.255.0;
    range dynamic-bootp 10.150.18.10 10.150.18.254;
    default-lease-time 21600;
    max-lease-time 43200;
    option routers 192.168.0.1;
    option domain-name-servers 127.0.1.1;
    next-server 192.168.1.1;
    class "Legacy" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00000";
        filename "undionly.kkpxe";
    }
    class "UEFI-32-2" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00002";
        filename "i386-efi/ipxe.efi";
    }
    class "UEFI-32-1" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00006";
        filename "i386-efi/ipxe.efi";
    }
    class "UEFI-64-1" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00007";
        filename "ipxe.efi";
    }
    class "UEFI-64-2" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00008";
        filename "ipxe.efi";
    }
    class "UEFI-64-3" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00009";
        filename "ipxe.efi";
    }
    class "SURFACE-PRO-4" {
        match if substring(option vendor-class-identifier, 0, 32) = "PXEClient:Arch:00007:UNDI:003016";
        filename "ipxe7156.efi";
    }
    class "Apple-Intel-Netboot" {
        match if substring(option vendor-class-identifier, 0, 14) = "AAPLBSDPC/i386";
        option dhcp-parameter-request-list 1,3,17,43,60;
        if (option dhcp-message-type = 8) {
            option vendor-class-identifier "AAPLBSDPC";
            if (substring(option vendor-encapsulated-options, 0, 3) = 01:01:01) {
                # BSDP List
                option vendor-encapsulated-options 01:01:01:04:02:80:00:07:04:81:00:05:2a:09:0D:81:00:05:2a:08:69:50:58:45:2d:46:4f:47;
                filename "ipxe.efi";
            }
        }
    }
}

slashdotpwn

status

● isc-dhcp-server.service - ISC DHCP IPv4 server
   Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor
   Active: active (running) since Thu 2017-08-31 16:42:07 EDT; 16h ago
     Docs: man:dhcpd(8)
 Main PID: 6908 (dhcpd)
   CGroup: /system.slice/isc-dhcp-server.service
           └─6908 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcp

Sep 01 09:06:45 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:08:19 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:10:39 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:15:01 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:16:09 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:25:01 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:26:50 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:32:18 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:33:34 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
Sep 01 09:35:01 Fogserver dhcpd[6908]: DHCPINFORM from 10.150.18.89 via ens32: n
lines 1-18/18 (END)

Sebastian Roth

@slashdotpwn said in DHCP issue PXE-E51:

next-server 192.168.1.1;

This doesn’t look right! What IP address does your FOG server have? Edit the dhcpd.conf file and put your FOG server IP there! Then run sudo systemctl restart isc-dhcp-server.service

EDIT: Ahh, wait a second. Looking at the other screenshot I see you have used 192.168.1.1 by intend? Please tell us the IPs you wanna use for your clients and the IP your FOG server has (post a picture of sudo ip a s).

DHCP issue PXE-E51

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