The Dynamic Host Configuration Protocol (DHCP) is a network configuration protocol that assigns IP addresses and gateway configuration automatically.

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PXE Boot Ubuntu 14.10 thinks eth0 link is down

I'm having problems booting an Ubuntu install over PXE. After a while, I get the error: Gave up waiting for the root device After that, I get dropped to a busybox shell. ifconfig shows nothing ...
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7 views

How to set a mlppp server

i have two internet connections in my house and i was thinking of combining them to have better speed and reliability. My thought is to have each router in a lan, so 192.168.1.1 for eth 1 and ...
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8 views

create range dhcp and give guest static IP adress

Hi i need some help with setting up my ip-addresses for my vm guest and im kinda lost here. To make it more clear for me lets say i have 10 ip-addresses (192.168.1.0 till 192.168.1.10) and i want to ...
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Ubuntu 14.04 How to forward LAN network through wifi hot-spot?

I am trying to share my LAN connection via eth0 through a wifi hot-spot (wlan0). I used hostapd to start the configuration but all the tutorials that i have found need a dhcp server installed. Can ...
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33 views

DNS not working on 14.04 after recent Windows update [closed]

I have several Ubuntu 14.04 machines, virtual and real, that live on a Windows network. Since a recent Windows update, no machine on the network can reference any of the Ubuntu hosts by name. ...
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1answer
58 views

Public IP address hides device from network

I have flashed a mini-image of Ubuntu 14.04.1 LTS onto my BeagleBone Black. (Find latest BBB image). The BBB is connected to my home Router via Cat5 AND USB cables. Understandably, I can directly SSH ...
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17 views

Domain name is not appearing in “work network”.Instead it displays “Network 9”

I have configured isc-dhcp-server and provided a domain name "anbu.com" along with the IP addresses and other details. My Windows 7 client got its IP address from the DHCP server. In the Network ...
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46 views

How to Fix the Intermittent Ping Time out

I am back with a new Question. Its weird as always. My setup is as follow; 2 Ubuntu 12.4 LTS Servers. / LynkSys POE Switch. / 01 LynkSys Router / 3 Proxim APs. The APS are connected via Cat6 to ...
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63 views

How to configure bind find dnsmasq addresses

My PC server runs Ubuntu 14.10 It runs dnsmasq only for the DHCP services since DNS queries are resolved using bind An entry like dhcp-host=01:02:fa:04:38:7a,192.168.1.113,camera exists for an IP ...
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38 views

Minimal installer cannot use network

How would I install a bare-bones Ubuntu and get the network connection working on a system where the installer behaves as described below, seemingly as if it was not connected to a network? When I say ...
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1answer
26 views

Ubuntu Server , Installed Hdd into another computer and now have no internet connection

EDIT: NVRM I figured it out on my own.. I needed to edit a file and remove the Previous eth0 and then rename my eth1 to eth0. I would like to set a static IP adress though if anyone wants to help me ...
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50 views

Configuring DHCP-Server using dnsmasq [closed]

I can't seem to make my DHCP Server (dnsmasq) work, even though there are so many tutorials on the internet. Somehow something doesn't work out for my setup. What I have: A computer, a laptop, a ...
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57 views

Setting up hotspot with hostapd & udhcpd on wlan0 with internet on eth0

[Ubuntu 12.04] I am trying to achieve a simple configuration that uses the Internet from eth0 and sets up a hot-spot on wlan0. But my requirements has constraint of not using NetworkManager. And I am ...
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1answer
62 views

Unable to set up DHCP and TFTP

I want to transfer my kernel image to beaglebone black, and the guide mentions that I should have already set up DHCP and tftp on the host machine. I have set up the TFTP using: sudo apt-get install ...
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1answer
57 views

How to undo eth0 configuration?

I was trying to connect 2 Ubuntu vms on virtualbox. they had the same ip address: 10.0.2.15 with default gate: 10.0.2.2 I tried to change this manually, and here what I did: on the edit connection ...
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94 views

Ubuntu 14.04 not using alias em1:1 address

I'm trying to use two IP addresses on a single network device. The device is an onboard NIC and came up as "em0" after initially booting, something I hadn't seen Ubuntu do before. I'm using a ...
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37 views

Ubuntu DHCP client doesn't report hostname

I found, that my Ubuntu server does not report it's hostname to DHCP server (which is different machine). Why and how to fix? /etc/dhcp/dhcpclient.conf is follows: option ...
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20 views

VM workstation 10- Ubuntu 14.4 client- need to run DHCP client

VM workstation 10- Ubuntu 14.4 client- need to run DHCP service - on host machine, the host is connected wirelessly on another network. I have a switch that 4 or 5 other machines will be connected to ...
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27 views

Why does OpenVPN Access Server have two Virtual Interfaces?

I am trying to configure OpenVPN Access Server to allow connected users to access resources on the host machine and I am a bit lost with the use of two Virtual Interfaces. Why does OpenVPN Access ...
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78 views

Unable to get a DHCP address with Network Manager

I have XUbuntu 14.04.1 LTS and I've just started having a problem where Network Manager is unable to get a DHCP address for my wired Ethernet connection, but if I stop Network Manager from running and ...
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13 views

DHCP seems to fail very frequently unless I use tcpdump

On my Ubuntu 14.04 system, many connections (especially wireless ones) seem to simply time out. However, if I run tcpdump on the interface before attempting to connect, they almost always connect ...
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Ubuntu 12.04 keeps getting the wrong gateway irrespective of what I do

My Ubuntu 12.04 box connects via another machine on the network. I want to force a gateway of, let's say, 173.20.1.222. However, irrespective of what I have tried it keeps getting a gateway of ...
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31 views

configure isc-dhcp-server if dhcp server already exist from routers

how configure isc-dhcp-server on ubuntu server 14.04 if dhcp server already exist from router device (Linksys E900), and i still want use PXE boot? Thx Ivan
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34 views

dhcp server with multiple network

I have a problem Ubuntu server 14.04, I want to do DHCP server whit multiple subnet subnet 192.168.0.1 subnet 192.168.1.1 subnet 192 168.2.1 subnet 192.168.3.1 In dhcpd.conf I write subnet ...
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45 views

MAAS node refuses IP address assigned to it by DHCP

I am trying to configure MAAS and Juju in a test environment. My MAAS region and cluster controllers are on a single machine with two NICs. eth1 is connected to a LAN with internet access; IP is ...
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55 views

How to automate running dhclient (without sudo) when starting a mobile broadband connection?

I use a mobile broadband dongle to connect to the internet but I'm able to download/upload only after executing manually sudo dhclient everytime I turn the connection on from the network manager menu ...
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16 views

isc-dhcp-server Failes to restart

I am tasked at school to setup a DHCP server for personal use. After I've set my configs and try to restart isc-dhcp-server i get this Stopping ISC DHCP server dhcpd (fail) Same when trying to ...
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584 views

DHCP server won't start. Gives 'Not configured to listen on any interfaces!' even when configured

I have just setup isc-dhcp on my server. I even setup the correct interface. But still the dhcp server won't boot. Its says Not configured to listen on any interfaces! in the syslog. And when I try ...
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73 views

Question about /etc/hosts and my DHCP-assigned address

While reading about Linux I got: You can view your system’s hostname simply by typing hostname with no argument. anupam@JAZZ:~$ hostname JAZZ then I found this: The special hostname ...
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26 views

Ethernet stop working after while

I have an ethernet issue, i connect to network but after while it stops working, to bring it back on, i need bring eth0 down and up. I'm using clonned MAC address if it can by the problem, also I ...
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58 views

Ubuntu 12.04 in a VM as DHCP / Router

Preface: I'm quite noobish Desire I have a bunch of IP phones I want to program using DHCP options 66/160. Our router is just a standard D-link so doesn't handle options. So I figured I would ...
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93 views

Ubuntu MAAS 14.04 Cant add nodes

root@spsandboxbl02:/var/log/maas# cat /etc/issue Ubuntu 14.04.1 LTS \n \l Following this guide: http://maas.ubuntu.com/docs/install.html root@spsandboxbl02:/var/log/maas# apt-get install maas ...
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1answer
86 views

DHCP change requires reboot

I have a static IP set on my web-server. When I change static to dhcp the server needs to be reboot for the changes to take effect. Is there any way to make it so I can use ifdown and ifup to change ...
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128 views

How to create a static wifi with hostapd UBUNTU 14.04?

I am trying to connect my android phone with wifi ubuntu. Things I have tried: 1) ap-hotspot -> , phone stuck in obtaining ip address, then avoided due to poor internet 2) manually configured ...
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38 views

Routing internet, resources and other network traffic through two NIC

Say you have two NIC cards and want two different subnets on each card but one gateway to the internet: eth0 192.168.1.1 netmask 255.255.255.0 gw 192.168.1.1 (DHCP and DNS Services) eth0 ...
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63 views

Configure Bind9 to search local domain for localhosts first

First a little background.(skip this if your in a hurry) This is a network in a small shop. There is a mix of clients on this network. There are PC's running various versions of windows and linux as ...
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1answer
38 views

Network configuration on boot taking longer than 60 seconds… why?

My HTPC was running Ubuntu 13.04 and had no problems, but I've re-formatted the system and installed Ubuntu 14.04 (minimal) from scratch and I've having a problem with my network. When the system ...
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30 views

Ubuntu Server low client dowload speed

In the work we have a Ubuntu server 14.04 working as a proxy server, dhcp and Firewall, we assigns the clients Ips Manually in the dhcp for each Mac Address. The most of the clients go out through ...
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72 views

Ubuntu MaaS nodes not booting PXE images

I've many nodes on LAN with wake On LAN enabled. I turn them one it tries to acquire IP through DHCP. Then reports No DHCP or proxyDHCP offers were recieved Sometimes No boot filename recieved ...
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84 views

2 DHCP Servers -ubuntu-14.04 and 1 gateway

I’ve got 2 DHCP servers / ubuntu 14.04.they are configured in failover mode (primary/secondary). They work very well but I have the following issue: The primary has got 2 NW-cards, eth0 for ...
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1answer
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isc-dhcp for Virtual Machines only

I installed Xen 4.3 on Ubuntu Server 14.04 and added the xenbr0 bridge. The host IP is 145.173.136.2. The network administrator reserved 15 IP's for the VMs: 145.173.136.112-126 So i installed the ...
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1answer
99 views

PXE based insallation always sets hostname as 'kickseed'

I am using PXE based provisioning of Ubuntu 12.04.5. I have PXE, TFTP, DHCP server in place. All my configurations specified in kickstart file are set correctly except the hostname. The machine always ...
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1answer
44 views

How to find IP address lease info using WPA2 Enterprise

I'm trying to find the DHCP lease info for my wifi connection on a network using WPA2 Enterprise and PEAP. I can do this in Windows using ipconfig /all which shows both when the lease was issued and ...
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1answer
175 views

How to get default gateway with a dhcp

I have ubuntu 12.04 and I have configured /etc/network/interfaces like this auto eth2 iface eth2 inet dhcp I also have auto eth1 iface eth1 inet static address 60.60.60.1 ...
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117 views

Lan party network usage statistics

Me and couple of my friends have decided to make a lan party around 40 to 50 players. I have couple of conserns I need to find solutions for. DHCP server I have now installed a DHCP server (in ...
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229 views

NetworkManager unable to complete wifi connection

When my built-in Ethernet controller died over the weekend, I bought a TP-LINK WN725N USB WiFi adapter. From a laptop, I obtained some firmware and a module from "sensorgnome" because the module with ...
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1answer
275 views

static ip in NetworkManager but ifconfig does not show the ip (ubuntustudio 14.04)

i am running ubuntustudio 14.04. I have a development setup where my pc has 2 NICs one of which connects to the internet and acquires dhcp ip from the router, while the other (eth1) is used to ...
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2answers
264 views

Configure LXC with additional IP ubuntu 14.04

I'm still looking for answer on my question. I have a dedicated server with ubuntu server 14.04, and 2 public ip. I want to add 1 public ip per 1 lxc. I think i've tried everything and nothing helped ...
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1answer
110 views

Wireless DHCP configuration fails on open network

I upgraded to Kubuntu Trusty last summer, and now that I'm back in school, I've noticed that my laptop has been failing to connect to the school's wireless (which is a completely open network). Every ...
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1answer
322 views

14.04 Desktop: Static IP is acquired, ping works, DNS does not

My question is very similar to this one: Can ping but no DNS I have setup a static IP on my previous Ubuntu versions - 9.04 and 12.04 - without issue. I have used an identical means this time as ...