1
vote
1answer
28 views

Static IP breaks Network connection

I am somewhat new to Linux. I am setting up a Web server and installed Ubuntu server 14.04 on an vSphere ESXi 5.5 host. I am connecting perfectly fine to the internet when using DHCP but when I apply ...
0
votes
1answer
23 views

iSCSI + br0 bridge + 14.04.1 Server = does not work

On one of my servers I have: USB 4GB: 1) EFI partition 2) /boot partition iSCSI 50GB (on another fileserver): 3) / partition In /etc/network/interfaces it works flawlessly if I have: auto p3p1 ...
0
votes
0answers
90 views

Setting up DHCP server - fail to start/stop it

I am following this guide. I am completely new to Ubuntu, working on 14.04 LTS. When I reach the last step before dealing with Kerrighed (half way through the tutorial), I try to start my DHCP server ...
0
votes
0answers
28 views

Can not apply a static IP address to Virtual PC?

I Installed an Ubuntu 12.04 LTS Server as a Virual Server using Wmware Workstation 10. Unfortunately when I change the DHCP setting to static. The server is unable connect to our network, it works ...
2
votes
1answer
51 views

How to change Ubuntu DHCP server address on the client?

How do I tell Ubuntu to use a specific DHCP server IP? I'm building a virtual test network in VirtualBox where I have a Ubuntu server installed. However, VirtualBox doesn't have an option to tell ...
0
votes
1answer
50 views

2 ubuntu dhcp servers

I would like to run 2 DHCP servers at the same time, each one should have differnt IP but both in the same subnet, same gateway but one has to have the first half of the DHCP rang and the other the ...
0
votes
0answers
23 views

How to configure my Ubuntu server as a dhcp router

I have a little problem with configuring my ubuntu server properly. On the ubuntu server there are 3 internet cards and one of them is wi-fi card. I read a lot of info for my problem but i couldnt ...
1
vote
0answers
75 views

Ubuntu MAAS DHCP working DNS Not working

I setup Ubuntu 14.04 MAAS on one server. I setup interface to manage DHCP and DNS via the Cluster interface. DHCP is working. But, DNS is not! When I try to add another node, it is doing PXE boot, ...
0
votes
0answers
440 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
votes
0answers
63 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 ...
0
votes
0answers
98 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 ...
0
votes
0answers
62 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 ...
0
votes
0answers
20 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? ...
0
votes
0answers
20 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.
0
votes
2answers
155 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. ...
0
votes
0answers
26 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 ...
1
vote
1answer
714 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 ...
1
vote
1answer
115 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 ...
2
votes
1answer
37 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
vote
1answer
81 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 ...
0
votes
1answer
44 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 ...
1
vote
2answers
57 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 ...
1
vote
0answers
136 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. ...
0
votes
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. ...
0
votes
1answer
37 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 ...
1
vote
2answers
123 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 ...
2
votes
1answer
48 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
1answer
40 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
1answer
151 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 ...
0
votes
1answer
236 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
1answer
63 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
53 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 ...
0
votes
0answers
311 views

Installing DHCP Server on Fog Server using Ubuntu 12.10 when it was not installed initially?

I installed Fog Server 0.32 on Ubuntu 12.10, and when I first did it, I connected it to our network thinking that I was going to get away with ghosting the machines where they sit. However, after ...
1
vote
1answer
220 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 ...
1
vote
2answers
196 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 ...
0
votes
0answers
143 views

how to change content of interfaces file?

my /etc/network/interfaces file looks like this auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.81.20 netmask 255.255.255.0 gateway ...
0
votes
1answer
760 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
0answers
139 views

Ubuntu 12.04LTS server: cannot get isc-dhcp-server to start

When I try and start isc-dhcp-server I get a can't open /etc/bind/rndc.key: permission denied So per instructions from Ubuntu site I added to /etc/apparmor/usr.sbin.dhcpd /etc/bind/r, ...
3
votes
1answer
565 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 ...
0
votes
0answers
149 views

Captive portal setup and content of interfaces file

I am trying to design a captive by referring to this link Captive Portal Using PHP and iptables Firewall on Linux In initial setup(linux box router) it is said that my interface file should be as ...
0
votes
0answers
102 views

How do I bind my internal ip to my external ip with dhcp?

I am making a minecraft a minecraft server, I have forwarded the port 25565 and have done everything necessary for it to work, with a functioning DNS that updates from the external ip every 5 minutes. ...
1
vote
1answer
128 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 ...
0
votes
2answers
907 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
44 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
0answers
25 views

Use Ubuntu Server to create a WiFi acces point

I have configured my Ubuntu-Server as a WiFi acces point following this instruction: http://wiki.ubuntuusers.de/WLAN_Router?highlight=dnsmasq I can connect and authenticate. But I don't want't ...
1
vote
2answers
175 views

Sharing Internet Connection (DHCP) through a Wireless Hotspot

I have an internet connection through a cable modem. The IP address on the cable modem is not static and is perhaps obtained through a DHCP mode. I wish to share this internet connection through ...
0
votes
0answers
49 views

Internet connection and external access with two Nics 12.04

I have just set up two nics in my ubuntu 12.04 server. I have eth0 and eth1 both configured to use DHCP. eth0 is connected to my router and the router has access to the internet. eth1 is connected ...
0
votes
1answer
3k views

How to reserve IP Address in DHCP Server

I install DHCP Server with https://help.ubuntu.com/lts/serverguide/dhcp.html but I need to make reserve IP addresses for specific machine (192.168.1.XXX) and further to assign a name to each machine ...
0
votes
2answers
1k views

configure dhcp server in Ubuntu 13.10 and other version?

salam (Hi) What is the difference between install / configure dhcp-server in Ubuntu 13.10 and other versions? I see a video about configure dhcp-server in Ubuntu 12 but I can't configure it in ...
1
vote
2answers
492 views

How to assign unique MAC addresses to sub-interfaces

I'm in a corporate environment with a DHCP server with static assignments for my server. I have one physical nic with several sub-interfaces. I statically assign different MAC addresses for each ...