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

learn more… | top users | synonyms

0
votes
1answer
144 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 ...
0
votes
0answers
101 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 ...
1
vote
2answers
667 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
votes
1answer
855 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 ...
-1
votes
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 ...
0
votes
0answers
154 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
votes
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 ...
2
votes
0answers
163 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
votes
1answer
115 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
votes
0answers
56 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
25k 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
votes
1answer
87 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: ...
0
votes
0answers
117 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
votes
1answer
925 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 ...
1
vote
1answer
54 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 ...
0
votes
1answer
157 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 ...
0
votes
1answer
73 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
votes
2answers
612 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 ...
0
votes
1answer
52 views

LAN but no WAN acess

I have just moved and when I did I received a new DSL modem. I have set it up as a transparent bridge as I have an internal router. It is just like I had done before, except I got rid of my static IP. ...
1
vote
1answer
1k views

Can't install software due to broken isc-dhcp-server dependency

while trying to setup hotspot i have messed up with the dhcp server setting , i do not know what went wrong but i am getting following error while installing anything : Errors were encountered while ...
0
votes
1answer
2k views

Ubuntu 12.04 wired connection doesn't work!

I just installed Ubuntu again after a few months of using Windows. At first I tried to install it by using an .ISO file, but I got stuck at 43% on the partitioner, so I figured out I should use the ...
0
votes
2answers
88 views

Cannot acquire DHCP address

I am unable to acquire a wired DHCP ip address. I have Ubuntu 13.10 installed on a thin mini-itx ECS Q77H2-TI motherboard. I'm connecting to my cable modem which does provide ip addresses to other ...
0
votes
1answer
711 views

ISC-DHCP-SERVER (primary/secondary) - Can Load Balancing Be Disabled?

When I was hired at my company, I quickly determined that one of my highest priority projects would be to improve our ancient DNS/DHCP setup. It was running on an Ubuntu-based workstation-grade server ...
1
vote
0answers
106 views

What is changing the network interfaces?

I installed Ubuntu 12.04 to virtual machine. I have edited /etc/network/interfaces like this: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp Then I created a livecd.iso using ...
2
votes
1answer
78 views

Can I have a dhcp interface in /etc/network/interfaces?

I have an interface already configured for an internal interface, which is static under eth0. My question is, can I create a dynamic outfacing interface under eth1. The reason I want to so this is ...
0
votes
1answer
111 views

Ubuntu 12.04 LTS & 13.10 not installing - IP through DHCP not working

I have this odd issue. I can't install 12.04LTS or 13.10 (both server) on my server. During the 'getting IP from DHCP' processes, the installation can't optain an IP address. Cable is fine, eth0 is ...
4
votes
1answer
252 views

Blank/empty hostname

I am using Ubuntu 12.10 and i was wondering if there is way to not send my hostname when connecting to a router? For example when I connect to my router I can see my laptop hostname when I log on the ...
1
vote
1answer
779 views

Using Ubuntu 12.04 DHCP server to securely update DNS records in Active Directory

What seems, to me, to be a simple question, apparently isn't. I have a Linux (Ubuntu 12.04) DHCP server: isc-dhcp-server, that works GREAT. No issues and all clients can get an address with no ...
3
votes
1answer
790 views

How to get host-name from DHCP server via Network Manager?

I can get hostname and ip address from DHCP server with invoking the script under /etc/dhcp/dhclient-exit-hooks.d/ directory as explained here on client side . EDITED: I assigned host-name and ip ...
1
vote
1answer
159 views

Ubuntu Server 12.04 stops responding soon after assigning a static IP manually

I know there's a lot written about this issue but no response seem to answer my question. So I am wondering my problem is with the most recent version of Ubuntu. I have just installed an Ubuntu 12.04 ...
2
votes
1answer
2k views

How to release all IP addresses in my LAN network

I have ~100 clients on my LAN. When they get turned on simultaneously many seem to get assigned the same IP addresses. - I use dhcp How can I get them get ubuntu to release all the currently ...
1
vote
2answers
1k views

Ethernet- Device not managed after changing static ip

I have changed the ethernet static ip to the default wi-fi local ip. This is so that my local and public services work after switching from a wireless connection to ethernet. At first, the solution ...
3
votes
1answer
1k views

Wired network does not work in Ubuntu, but works in Windows 7

Updated: I have pasted full output of bash command in Ubuntu into here, including ifconfig, ping, nm-tool, modinfo and dmesg | grep e100. Hi all, I can surf internet in Windows 7, just pluging in ...
0
votes
1answer
1k views

How to set hostnames to specific range of IP addresses on DHCP Server?

I'm working on Diskless Linux Clusters. I'm using Ubuntu Server 12.04( DHCP, TFTP and NFS servers installed and configured). When I boot slave machines via Live CD, all of them have same hostname but ...
0
votes
1answer
393 views

How do I set network speed and duplex during boot?

My problem is that I have ADSL box doing autonegotiation, defaulting to 100Mb. However, my network cable does not seem to operate at that rate. The speed is set to 100Mbps but DHCP fails. I need to be ...
1
vote
1answer
2k views

Wired network is connected & acquires IP address but the internet is not working

So the other day when my network died completely without a warning at first. I thought it may have been the modem or the router (the modem can't handle to many connections as its a a bit dodgy); but ...
3
votes
1answer
2k views

Can't resolve windows domains in local network

I've installed ubuntu on my computer at work because I think it is a perfect system for work which I do but I got some issues. I can't resolve domains from windows DNS server. Basically, we have two ...
1
vote
1answer
413 views

Ubuntu How to setup Multi Dhcp Server

If you have 2 NIC (network Lan card) each connected to different networks: => eth0: 192.168.1.0/24 => eth1: 192.168.2.0/24 I need the Dhcp server to serve the different subnets ip leases ? How to ...
2
votes
1answer
3k views

How can I find my DHCP server?

On my LAN there are multiple DHCP servers running, and all of them are on the same range. Now I use a machine which has a dynamic IP address from a DHCP server. I have to know from which server it ...
1
vote
1answer
635 views

MAC filtering for DHCP3 server

I am setting up a school network and i have an ubuntu 13.10 sever. I am looking for a way to deny all devices to get an ip, except for the devices which MAC address I specify in a certain list. As I ...
0
votes
1answer
54 views

Question about dhcp server in ubuntu server 12.04

I configured a dhcp server , i then configured a client to take a dhcp ip . I need from server terminal to know the addresses released to my domain Pcs .
1
vote
0answers
581 views

adding request to DHCP starvation using Scapy?

using this code for DHCP Starvation conf.checkIPaddr = False ...
0
votes
1answer
571 views

dhclient.conf supersede stanzas ignored

I'm putting the following lines at the top (also tried the bottom) of my dhclient.conf file: send host-name "hostname"; supersede domain-name "my-domain-name" supersede domain-search "my-domain-name" ...
1
vote
1answer
241 views

How can I share my internet connection from windows to ubuntu?

Okay, so I have a mobile connection attached to my main pc (windows 8.1), the address range is 192.168.43.1 - 255 with the gateway being 192.168.43.1 and I want to share this to my Ubuntu server which ...
1
vote
2answers
4k views

Configuring a network on a multi ethernet port server

Hy to all: I have just installed Ubuntu Server 12.04.3 on a Sunfire X4100 This server has 4 ethernet port, my target is to use: eth0 to connect to the modem and so to internet eth1, eth2, eth3 to ...
-2
votes
1answer
51 views

No network out of the sudden on Ubuntu 12.10

Recently, I replaced my network card and had few issues with the new card and the network connection on the office Intel Xeon 5500/Core i7 white box server running 64-bit Ubuntu 12.10. I ended up ...
0
votes
1answer
367 views

DHCP Configuration in ubuntu server 12.04 LTS

I know i can configure DHCP in terminal by installing isc-dhcp-server but what i need is the best GUI program that allow me to configure DHCP settings graphically . Any Suggestion is thankful ?
0
votes
2answers
11k views

Problem configuring dhcp server: Job failed to start

I m trying to configure dhcp server in ubtuntu onto my virtual box and connecting other virtual instance of ubuntu to this dhcp sever i have installed dhcp server using sudo apt-get isc-dhcp-server ...
1
vote
1answer
980 views

LTSP thin client would not login

The situation is: I have created an Ubuntu LTSP 64bit Server with 32 bit clients using the steps in this tutorial. I used Virtual Box machine as thin client using same procedure in this tutorial. ...
0
votes
0answers
22 views

ssh backup host [duplicate]

I have a pc called MONKEY, when MONKEY is connected to the lan of my network it has ip address 192.168.1.101, when MONKEY is connected to the wlan of my network it has ip adress 192.168.0.107. Now in ...