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

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MAAS: Unable to start “Commisioned” nodes

I am having problems while trying to start my first node using KVM (QEMU 2.0.0) and MAAS. Automatic detection worked fine, and during the commission (virtual machine window) I get errors such as: ...
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2k views

Ubuntu Server 14.04 share internet from eth0 to eth1 with commandline

I have installed ubuntu server 14.04 LAMP with two network adapters and I'm attempting to share the network from eth0 (WAN) to eth1 (LAN). The reason for doing this is that the Ubuntu Server works as ...
0
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0answers
127 views

Ubuntu maas DNS Node not connected to internet

I have a Ubuntu MAAS Region and Cluster Controller on one Server. It is running DHCP Server as well. MAAS Cluster interface - "Manage DHCP and DNS" did not start a DHCP Server. So, I had to manually ...
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0answers
263 views

MAAS DHCP Server Setup, PXE TO1 TFTP File Not Found

I am setting Ubuntu 14.04 MAAS Cluoud. I have setup the region and cluster controller. For some reason, MAAS was not running DHCP even though (1) maas-dhcp and maas-dns were installed, and (2) Added a ...
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2answers
2k views

override dns nameserver

i wish to set higher priority for my dns nameservers, or override the ones that are being set by the dhcp server. no matter which approach i took, nslookup never displays the right dns nameserver. ...
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0answers
299 views

Ubuntu MAAS DHCP Not working Cluster

I am a newbie with Ubuntu MAAS - I have region & cluster controller running on one machine. I have two NICs - eth1 - which is connected to our organization and eth0 - which I am trying to setup ...
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2answers
1k views

Intermittent wired network issues in 14.04

Since yesterday, my wired network connection has been dropping for a couple of seconds every 30 seconds or so. To my knowledge, I had not made any changes to my network. Output of ifconfig -a: ➜ ~ ...
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0answers
94 views

Zentyal PDC on MAAS

OK, so I may be smoking crack here, but feel free to tell me... ;-) I currently have a server running Ubuntu 12.04 LTS and Zentyal 3.3, with the latter configured as my primary domain controller ...
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44 views

How to reset DHCP poolin ubuntu server 14.04?

Would like to know how to reset the DHCP pool in Ubuntu server 14.04, as I would like the server to advertise IP-addresses beginning from the start /first IP of the pool. Could anyone help please? ...
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31 views

DHCP server on MAAS

I have disabled DHCP on my router in my DNS and DHCP server is installed, configured the cluster, but my DHCP does not work and so I cannot add nodes via PXE. I'm using Ubuntu Cloud OpenStack 14.04.
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2answers
3k views

How to Stop DHCP Server

I have installed a DHCP Server. Now I need to stop the dhcp server, when I issue the command: sudo service isc-dhcp-server stop I get stop: Unknown instance. I confirm the DHCP service is running. ...
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108 views

Multi gateways & Vlans

With all your help and support, I’ve managed to configure an ubuntu dhcp server with 2 network cards, and it’s working well. Thanks again. My next step is more advanced, it’s to configure another one ...
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1answer
173 views

Static ip but dynamic nameservers?

Trying to change nameserver' settings for a Ubuntu-13.04 server I came upon this situation! /etc/network/interfaces : # This file describes the network interfaces available on your system # and how ...
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0answers
38 views

No ping to gateway although received DHCP lease from gateway

I try to connect my server to my network over WPA2. After ifup wlan0 I get a valid DHCP lease from my gateway (192.168.1.1). However, if I try to ping/access any computer (internal network, gateway, ...
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0answers
30 views

IP switched to dhcp on reboot on Ubuntu

I try to set a static IP with the following stanza in /etc/network/interface auto lo iface lo inet loopback allow-hotplug wlan0 iface wlan0 inet manual wpa-roam ...
3
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1answer
18k views

Assigning a static IP to Ubuntu Server 14.04 LTS

I've installed Ubuntu 14.04 LTS Server in my machine on a separate hard drive while having my Windows 7 installation. The Windows OS has its full network connectivity and internet access through the ...
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1answer
154 views

domain name in dhcp

I want to configure DHCP on 14.04. So I downloaded isc-dhcp-server from the repository. In configuration file I see these two line which are not commented. What is the usage/purpose of the ...
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2answers
845 views

dhcp fails after initial reboot with “No working leases in persistent database”

I just installed ubuntu server 14.04 LTS, overwriting 12.04. The installation appears to proceed correctly. During the installation process the IP and hostname are correctly obtained via dhcp. ...
2
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1answer
81 views

Web filtering, dhcp, proxies in a distro?

I want to ditch our Dave's web filtering because it blocks anything our dear Gov do not like, but I also want to protect my children from porn. I am thinking I can install a cut down Ubuntu distro on ...
1
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1answer
111 views

Strange issue with DHCP on Ubuntu 12.10 [closed]

I've configured a new Ubuntu DHCP server (12.10) and it's working fine (thanks to you all for all you help in setting it up). I have a strange issue, and don't know what's going on. I hope I will get ...
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0answers
327 views

Unable to add Windows 7 PC as client to samba4 AD DC

I'm new to networking. I'm trying to set up a network at my office which consists of about 15 Windows 7 PCs in the lab. This worked perfectly when I tried with Windows Server (evaluation version). ...
0
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1answer
329 views

Correct DHCP client configuration

I have two dhcp directories in /etc: /etc/dhcp and /etc/dhcp3 Which one is the correct direcotry for editing my dhcp client configuration? I want to send the hostname with dhcp and so was trying to ...
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45 views

Append DNS Suffix - Wifi vs Physical

So a while back I changed my DHCP config to appended a dns suffix automatically. I modified the.. /etc/dhcp/dhclient.conf ..config file and added the a line.. append domain-name "mydomain.net"; ...
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1answer
113 views

Is it possible to periodically repeat a dhcp request?

I have my ubuntu server set to get addresses from a dhcp server. However, if that dhcp server is not currently active, the server will just stay with no address. Is there some mechanism to ...
0
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1answer
100 views

inactive enable Wi-Fi

I did some changes on my wi-fi connection to give ip manual and somethings else I do not remember what exactly i did and now Wi-Fi connection is not enable on the menu bar I set my connection again to ...
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2answers
78 views

dhcpserver configuration, please help

I hope I will get help here. I need to configure an Ubuntu dhcp server (12.10), the server has 2 network cards. What I need to do is to configure the server as DHCP to give clients IP-Addresses ...
5
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2answers
24k views

Unable to set static IP address in Ubuntu 14.04 [closed]

I've never had so much problems setting a network interface card to static addressing. I'm not sure what has changed, but I can only seem to get this thing to work if it's set to obtain the address ...
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233 views

iptables ruleset blocking LAN and WAN

Having problems with your Intel I217-V ethernet port? I suggest you read this entire post. Whilst drivers were not my issue, nor my answer (in the end), this post will still provide useful insight. ...
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2answers
400 views

Why dhclient is still running when I choose static IP?

I modify dhcp to static in /etc/network/interfaces (like below). # The primary network interface auto eth0 iface eth0 inet static netmask 255.255.0.0 address 10.10.130.128 gateway 10.10.1.1 Then ...
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42 views

Is there a way to set BOOTIF in dnsmasq equivalent to isc-dhcpd?

It would seem that isc-dhcpd sends BOOTIF parameter for PXE booting clients. The initramfs-tools package detects this and uses the BOOTIF variable to determine which interface to set up for the root ...
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0answers
2k views

Configuring Ubuntu 14.04 as DHCP with 2 network cards

I am really confused, I installed Ubuntu DHCP server 14.x and trying to get it working but don't know where to start. I've been reading online and there are different versions of doing it. ...
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1answer
119 views

Where can I specify init service conf for isc-dhcp-server?

I used service isc-dhcp-server start to invoke the dhcpd. if I do ps -ef | grep dhcp here it is: root@casalab-Latitude-D530:~# ps -ef | grep dhcp dhcpd 6636 1 0 Apr28 ? 00:00:00 dhcpd ...
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0answers
94 views

Prevent some interfaces from editing resolv.conf

I am trying to connect a camera to the internet. To do this, I have two devices: lte0 and wlan0. The camera (Sony NEX 5) is controlled over wlan0, and lte0 is the LTE connection. My ...
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2answers
590 views

Ubuntu server network autoconfigure failed

I'm novoice Ubuntu server user. Im using Virtualbox to install Ubuntu Server 13.10 While installation process i got message Network Auto Configuration failed I selected Continue Now my server ...
5
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1answer
692 views

What's the correct MAAS DHCP configuration?

I've set up a MAAS controller by following this documentation: http://maas.ubuntu.com/docs1.4/cluster-configuration.html However, when I got to the DHCP configurations I was a little puzzled. The ...
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1answer
20 views

Configuring two half-separate lans using DHCP

I have to set up DHCP that has to assign IPs over 2 networks (192.168.0.0/24 and 192.168.1.0/24). That is easy and I've got it working. The question is, is it possible to make PCs from one network ...
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148 views

Trusty, Lenovo Y500, and Wifi

After a little googling, I was able to install Ubuntu 14.04 on my Lenovo Y500. Grub would not install on /dev/sda (16GB SSD), but installed fine on the spinny disk. I'm using the SSD as the swap ...
5
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2answers
4k views

DHCP and static IP address simultaneously in ubuntu

We can use multiple IP address for a single interface in linux(eth0:0, eth0:1). But can we use dhcp and static IP in the same time?? eth0:1 should have a static IP address and eth0:0 will be configure ...
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0answers
160 views

Macvlan interfaces beyond first interface fail to connect.

I've been working on a project to build a set of macvlans on ubuntu. The process I'm using comes from here. In short, I run this set of commands to build and initialize an interface: ip link add link ...
2
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1answer
105 views

How to direct DHCP requests based on IP

I have a home server that I want to make multicast a music stream to my network. I have the server connected to my main network router via WiFi, and I have a switch connected to the server by wire ...
0
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0answers
53 views

Nintendo DS unable to aquire ip from ubuntu 12.04

I want to connect my Nintendo DS (does not support WPA or Ad-Hoc) to the internet, but i can't just change the encryption from WPA to WEP every time i do so, so i connected my pc via ethernet cable to ...
4
votes
1answer
24k views

Cannot connect to wireless in Lubuntu 14.04

I have tried all afternoon to fix this, but now I give up. I am trying to set up an old XP PC with Lubuntu 14.04. It works perfectly fine, except for the wireless connection. Connecting with ethernet ...
0
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1answer
78 views

DHCP Server & Client

So I'm having a bit of trouble getting my DHCP server to assign and IP address to my clients. I have the dhcpd.conf file configured to assign a range of IP address to my clients as follows: ...
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0answers
109 views

Install MAAS when I can't control the existing DHCP server

I'm a graduate student and I'm trying to install MAAS to manage the servers in my lab. The document of MAAS and MAAS itself is awesome, but I still have a question about DHCP configuration. So there ...
0
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1answer
685 views

VirtualBox: Simulate network and DHCP Server - cant reach hosts

I have 4 Virtual Machines with VirtualBox and I want to set up a virtual network like this: The VMs have multiple eth interfaces using "Internal Networking" mode in Virtualbox. My goal is to be ...
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0answers
172 views

Can't Open A Specific Website. Can Open With A Proxy. wget stucks on “HTTP request sent, awaiting response…”

Ok, I'm having a very weird problem. I've searched through google and ubuntu forums but it seems that this problem, if faced, is unsolvable. However, I'm very hopeful that I'll get a solution here. ...
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1answer
53 views

How is information passed between ipconfig and the init process at boot time

I'm trying to assign an IPv6 address to my machine at early boot time (in order to boot a diskless system over IPv6) with ip -6 addr add $ipv6/108 dev eth0 at nfs-premount. This works fine, but as ...
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1answer
146 views

MAAS / nodes have limited internet access after install

I´ve installed a test environment for MAAS and JUJU. MAAS manages both DHCP and DNS. Following setup: maas01 - static IP juju01 - dhcp and dns from maas01 node01 - dhcp and dns from maas01 and pxe ...
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1answer
64 views

Why after installing Ubuntu by PXE it never has Internet or Internet Connectivity?

I've even trying for weeks to install Ubuntu over the the network. I have been successful at setting up my Ubuntu Server and also I am able to get my clients to pxe boot and everything else is working ...
8
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2answers
542 views

How to run a script when there is a change in your local IP?

Before marking as a duplicate: this is not about dynamic DNS or similar things. I know how to run a script every time my networks goes up; it is a simple matter of adding a script in the directory ...