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

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DHCP help in Virtual Box

new to Linux and Ubuntu - ya noob, be gentle. I have a Windows 7 host, running latest Virtual Box, created an Ubuntu 12.10 server installation. Everything seemed to go fine, I chose all defaults ...
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internet connection: connected only when detach/attach the wire again

I just started my adventure with Linux. obviously had many issues already, but get to manage it. one that bother me a little though I have found the temporary workoround is my network connection. my ...
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Not connecting to WEP enabled Wifi router after update

I have been using 12.04 on a dual boot Lenovo Thinkpad Edge. Recently the Wi-Fi stopped working on my home network, but still worked on an open network. Other computers in the household, and my ...
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Add Server between current wireless router and new router

I have a Ubuntu 12.04 Server with a wireless router attached. I would like to connect it to my modem/wireless router via the wireless interface in a transparent manner. My goal is to use the server to ...
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How do i make ubuntu request a specific ip address from a dhcp server?

So here's the deal. My router assigns ip addresses starting from 192.168.0.50. I have a couple of computers running ubuntu which i want the router to assign 192.168.0.50 and 192.168.0.51 every time ...
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273 views

Possible to run custom DHCP and DNS with fall-back to Cable Modem?

I am trying to accomplish a task that may, or may not, require a creative solution. Essentially, I want to run my own DHCPd and, more importantly, DNS for my home network. I want to run my own Name ...
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Configure ubuntu with two network adapters and a switch

After 4 hours of trying to configure this I'm getting mad. I've the next setup: eth0: is the on board lan adapter and this one connect directly to a switch. eth1: is the lan adapter (pci card) that ...
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399 views

How to connect internet across a static IP network?

I'm using Ubuntu 10.04 but without internet at home. The reason I think is I have changed my network connections recently to static IP from DHCP because gnuradio needs static IP for accessing external ...
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How to edit /etc/resolv.conf on Ubuntu 12.04

I have two network interfaces configured via DHCP. As a result, /etc/resolv.conf is populated with information coming from the DHCP server. How can I edit this file? I know that if I add prepend ...
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87 views

Per network settings for a laptop

I often roam in different networks. Some of those need special settings for DNS or block mails to external mailservers and only accept internal smarthosts. I'm looking for some kind of program where I ...
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Ubuntu router breaking internet radio streams

I have Ubuntu 12.04 up and running fine as a DHCP router with great throughput to my connected devices. two single nic's (one onboard and one PCI-e, both with Realtek 8111E chips) are used as WAN and ...
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How to access my virtual machine server via hostname?

I created a Ubuntu 12.10 virtual machine in VMware which runs an Apache server. The VMware machine is on a bridged network adapter, so it's using the physical network connected on my host. For now I ...
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Turning off pppoe

I had a pppoe connection and I am trying now to connect to another network without pppoe. I've made the following modifications in the /etc/network/interfaces file: ################################ ...
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Question for class

I have a question for class that I cannot figure out, I was hoping the helpful folks at Ask Ubuntu could help. The question is basically this: Your Linux system appears to have a DHCP problem. You ...
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setup dhcp server - “Job failed to start”

I have an eth0 and eth1, eth0 has dynamic IP-address and on eth1 I setup static IP-address: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet static address ...
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ISC-DHCP: Battling to get the host name from the dhcp script

Server OS : Ubuntu 12.0.4.1 LTS Server Desktop OS : Ubuntu 12.0.4.1 LTS and Windows 7 I have followed an article on the net on how to update a powerdns database. ISC DHCP and PowerDNS How ever I am ...
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Why can't I connect to my network via wired DHCP connection?

I am trying to connect to the LAN of the university where I work, on a wired connection. The Internet is accessed by VPN after connecting to the network. On Windows 7, the computer seems to ...
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dhcp server configured in ubuntu on vmware

How can I test a dhcp server running on Ubuntu in vmware? My dhcp configuration is: ddns: update-style none; default-lease-time 600; max-lease-time 7200; subnet 192.168.56.0 netmask 255.255.255.0 { ...
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Setting up Ubuntu Server as a Router with DHCPD and 3 Ethernet devices

My configuration: Ubuntu 12.04 DHCP3-server BIND9 eth0, eth1, eth2 eth0 is the external connection eth1 & eth2 are the internal network eth1 and eth2 are supposed to be seperate ...
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ubuntu 12.04 dhcp gateway server

I need a little help. I will explain this the best I can so people don't have to ask extra questions. Essentially, I have a dell poweredge 2650, with 2 nics. eth0 goes to my cable modem, while eth1 ...
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Setup DNS server for local network (with DHCP) for use with apache

I've set up an ubuntu-server to host a website. But at first i want to configure it to work in my local network. Actually it serves as DHCP server for the whole network with static ip 192.168.170.250 ...
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How do I set a static DNS nameserver address on Ubuntu Server?

I am trying statically to set DNS server addresses in my Ubuntu server running as virtual machine. I followed all recommendations on official Ubuntu support pages but I simply cannot get rid of my ...
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Casper set hostname via dhcp

I'm booting sucessfull via pxeboot a live ubuntu remix. I wan't to set the hostname via dhcp because I'm booting several instances of the same image. Right now I'm using a hookline in ...
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529 views

Defaulting internet requests to wlan0 when also connected to eth0

I am trying to configure an Ubuntu 10.04 desktop edition as a server. I currently have the DHCP server working through eth0. My problem is that I only have one Ethernet port, and am receiving ...
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371 views

Forwarding data between two interfaces

I installed Ubuntu server 12.04 after that I installed dhcp3-server and configured it like this: At isc-dhcp-server INTERFACES="eth0" And in dhcpd.conf # A slightly different configuration for an ...
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817 views

How can I obtain an IPv4LL address when dhcp server is down?

I edited the /etc/network/interfaces with the lines auto eth0 iface eth0 inet dhcp but, if the dhcp server is down, I want the interface obtains automatically a link-local address. Is it possible? ...
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566 views

How to define the range of IPs using DHCP?

I am new to installing ubuntu 12.10 MAAS. I want to set up a DHCP server to define the range of ips for clients. I am not able to do this on 12.10 while on 12.04 this was simple to perform. Please if ...
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MAAS on Ubuntu 12.10

I just upgraded a Ubuntu 12.04 server to 12.10. It was built with MAAS but no other servers had been added to its private network yet, but I confirmed that dnsmasq was setup correctly for DHCP and ...
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Timeout in a connection to a DHCP server

I want to configure my eth0 interface using an external DHCP server (resident in my subnet), so I edited /etc/network/configure with the lines auto eth0 iface eth0 inet dhcp but I also want to ...
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dhcp3-server or isc-dhcp-server

So. I need a dhcp server on my ubuntu server. I've found two options, and some saying it's the same thing? Could someone explain the difference, maybe even pros and cons? If it's not the same.
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Ubuntu Server 12.04, NAT, Router, DNS. It just doesnt work

I recently inherited some server hardware from work and decided that it could be my main router at home (among other things). Ubuntu 12.04 server installation harware wise goes well and everything is ...
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217 views

Getting “Try Ubuntu” Option for Netboot Ubuntu

I've been working the past few days to create a server computer that will allow me to boot a Windows computer on its network into Ubuntu, but without damaging any of the files on the Windows client ...
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Cannot get DHCP to work when connecting to an Android AP

I am having a problem with my Ubuntu 12.4. Basically, while I can connect fine with a "normal" wireless access point, I am having great difficulty connecting to anything else -- neither with my ...
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Configure ISC DHCP server “routers”

My challenge is trying to find a conditional way to change the order of the default gateways used in "option routers" parameters. Perhaps on receiving a DHCPDISCOVER message. So the first client ...
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935 views

MAC filtering after DHCP

How to manage filtering by MAC in Ubuntu? Scenario: Ubuntu DHCP is configured and working (network 192.168.1.0) a) Laptop 1 is set in configuration on Ubuntu as static IP Laptop 1 is configured ...
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Have to run sudo dhclient eth0 automatically every boot

I just installed ubuntu 12.04.1 alternative install (for raid 0 on some disks). I Have some problems with the net. I'm at school, we use cable, and it got IPv6. If I run ifconfig eth0 heres my ...
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Can not restart dnsmasq due to “ configuration syntax check [fail]”

I restart dnsmasq and get $ sudo /etc/init.d/dnsmasq restart * Restarting DNS forwarder and DHCP server configuration syntax check [fail] From where and how can I troubleshooting?
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How to view the DNS address assigned by DHCP?

How to view the DNS address assigned by DHCP? ifconfig can not show it. $ ifconfig -a eth0 Link encap:Ethernet HWaddr 90:e6:ba:22:6a:f2 inet addr:192.168.1.111 Bcast:192.168.1.255 ...
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Cannot get Dell Dimension 3000 to get DHCP from DCP3010 Charter cable modem [closed]

I am trying to set up a firewall on a Dell Dimension 3000 with server 12.04. I have a DCP3010 cable modem from Charter, when I plug my Win7 laptop directly into the modem I get an IP address through ...
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I need to reset my computer's ip address to dhcp from static

I have been running a file server on Ubuntu for a couple of years now. Recently I had to take the network down. When I brought it back up, my server lost its ip address from the router. I can't ...
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NATTING in Ubuntu Server

My Server has two NIC, One is connected to the Internet Service provider with dhcp ip (dynamically change) given by ISP and other NIC is connected with local Switch with 192.168.1.1 IP. Now I want to ...
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DHCP3-server Don't want IPV6 address

Recently we upgraded from a windows 2003 DHCP server to a Ubuntu 10.04 DHCP3-server. The problem I am faced with now is that my windows 7 clients are now getting IPv6 ip address along with the IPv4 ...
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How to automatically renew DHCP IP?

I have a headless server on my network (actually it's just running Ubuntu Desktop 10.04) that for some reason isn't automatically renewing its DHCP lease when it gets reconnected to the network. How ...
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Cannot connet to password protected wifis

Network manager cannot connect to a wifi, if the wifi is password protected (WEP or WPA). However it can connect to passwordless wifis. Also, I can conned to password protected wifis manually as: ...
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server 12.04 boot dhcp, can not find hard disk

I am trying to set up ubuntu server 12.04 LTS on my old Dell desktop for a LAMP home testing server. The install went fine, but when I start up, I do not see the the grub boot loader (which i ...
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Setup DHCP server for LAN party

I will host a LAN party next week where we will create am isolated LAN without internet connection. Since I do not want to set up static IPs on some 8 computers, I thought about setting up a DHCP ...
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How to setup DHCP Server and Dynamic DNS with BIND?

Possible Duplicate: How to make my pc a DNS server in local network with no-internet access? I have installed the two servers (dhcp & DNS) what i need is to make the dns dynamically ...
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Honeyd is not working properly

what i done till nw is.... step 1. install the honeyd step 2. made a config file with the name "honed.conf" step 3. save the file in the same directory where honeyd package is already. step 4. run ...
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Ubuntu keeps reconfiguring my network

I'm configuring a "network", between two computers(both with ubuntu 12.04), using a crossover cable and assigning all ips by hand. When I set up an interface, with IP netmask etc, everything works, ...
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DHCP is mangling my PTR records in DNS

I originally posted this in LinuxQuestions http://www.linuxquestions.org/questions/linux-server-73/dhcp-is-mangling-my-ptr-records-in-dns-4175412344/ without much luck, so I'll try here. DHCP is ...