2
votes
1answer
21 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
16 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
39 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
0answers
94 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
40 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
35 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
68 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
162 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
51 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
32 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
216 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
72 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, ...
2
votes
1answer
242 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
71 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
77 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
74 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
304 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
41 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
22 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 ...
0
votes
0answers
123 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
36 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
899 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
944 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 ...
0
votes
1answer
244 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 ...
0
votes
1answer
402 views

Why fixed address assigned to DHCP server doesn't work?

I have an Ubuntu server that runs DHCP server. DHCP server works good normally, but when I want to assign fixed IP address for my clients, it doesn't work. My codes in dhcp server in dhcpd.conf look ...
0
votes
0answers
125 views

Two ip address for a one mac address

Can Isc-dhcp-server give two static ip addresses to one mac address? I have several home terminals in my network. Each terminal have two interfaces. One for public traffic and one for a management ...
0
votes
0answers
622 views

isc-dhcp-server not starting on ubuntu13.10

I'm trying to set a DHCP server on 13.10. I installed: sudo apt-get install isc-dhcp-server My configuration files look like this: /etc/default/isc-dhcp-server INTERFACES="eth0" ...
1
vote
2answers
714 views

Ubuntu Server Static IP Problem

Hi I've been trying and trying to chang emy ubuntu servers IP to static so I can have people join my Minecraft server that I have set up, I've been working on it for 2 days straight with no luck, when ...
1
vote
0answers
259 views

Dependency Problems while installing isc-dhcp-server

I'm a newbie in the Ubuntu world. As a result, I'm having some problems with my Ubuntu 12.04 LTS. I have an Android device which I want to connect to my Ubuntu. To make this possible, I am trying to ...
0
votes
0answers
168 views

Cannot get down interaface with ifdown

In /etc/network/interfaces I have defined two interfaces: lo and wlan0. When I run ifconfig I get three interfaces: lo, wlan0, wlan0:0. When I run ifconfig -a I get five interfaces: eth0, eth0:0, ...
0
votes
1answer
72 views

Limited or no connectivity on windows clients

here's my scenario Using ubuntu server non gui, I would set up a server with static IP on eth0 then share the connection on eth1 -> connected to a network switch. i did set up eth0 as static, ...
1
vote
2answers
5k views

Can't set DNS with Static IP

I'm running Ubuntu 13.04. I uninstalled DHCP. I set my IP address to 192.168.1.200 and it's working just fine. I can connect to it via my other internet network machines. However, I've tried to ...
3
votes
1answer
842 views

Changing/Setting DNS settings on boot

I have a situation where i do not give access to a machine, but there may be circumstances where the IP settings need to be changed. I have overcome this by providing a USB stick with a file with both ...
0
votes
0answers
102 views

Ubuntu Server 12.04 network with dhcp can't reach any node in local network

I can't get my ubuntu Server 12.04 installation to ping/reach any machines both lan and wan (including the gateway). The network is setup such that the machine connects over wifi and get an ip via ...
0
votes
0answers
389 views

eth0 & eth1 LAN But no WAN Ubuntu 13.04

NOOb here I can connect via putty on both local ips from another machine. Windows boxes can access and play media files from linux box no problem in Ubuntu deskop I can access files on the windows ...
0
votes
0answers
359 views

isc-dhcp-server on Ubuntu Server 12.04 LTS

Just installed Ubuntu Server 12.04 on my server and am trying to install isc-dhcp-server on this box so it can serv IP addresses to the rest of my network. I ran "sudo apt-get install ...
1
vote
2answers
85 views

Is there a way to connect with the real router(server) from the fake one?

Scenario: +---+ eth0| S | +----------+ internet ======| | | |------PC1 | / | | switch |------PC2 | ...
0
votes
0answers
128 views

How can I share an internet connection between IPv4 and IPv6?

I configured my Ubuntu as a dhcpv6 server for IPv6, but my WiFi connection is IPv4. I want to divert my internet connection to the Ethernet port (wlan0 to eth0). I know that IPv4 to IPv4 is possible, ...
0
votes
1answer
1k views

Ubuntu Server and setting up two nic cards

I have ubuntu server on a computer with a wireless and hardwired nic card. The wireless needs to get the internet and pass it to the ubuntu server as well as pass it along to the hardwired nic card ...
0
votes
0answers
51 views

Creating a new DHCP lease databse

I have Ubuntu Server set up as my DCHP server. We have had it install for a few year and our dchp.lease file contain over 4000 entries. I am wanting to clean it up and basically start a new lease file ...
1
vote
2answers
876 views

DHCP working but clients don't have internet

Just as the title says. My DHCP assigns IP addresse and all that stuff to clients; however clients don't have access to the Internet. Here's my DHCP configuration: ddns-update-style none; option ...
0
votes
0answers
99 views

dhcp server stops working after a few hours

I have a recently installed copy of 12.10 on a system that provides some services throughout my home. The system is up 24/7. A problem started about a week ago that the dhcp server stopped working due ...
1
vote
1answer
687 views

Ubuntu Server randomly gets DHCP address instead of keeping static IP

I have a home server set up as my internet gateway. IP fowarding and such is working fine, but for some reason the server keeps grabbing a DHCP address instead of sticking with the static address I ...
1
vote
1answer
230 views

Re-run the auto DHCP configuration

I need to re-run the network configuration, as everything has changed. How can I re-run the auto-configuration? This is on 12.04 Server
0
votes
1answer
147 views

Ubuntu Server as Router, Static ip for macadr's

I have Ubuntu Server as Router. On it i have turned on DHCP Server, but i want to give static adresses to some devices (mac adresses) in my network, where I have to start? I tried to google it, and i ...
0
votes
1answer
6k views

DHCP server not starting

I'm trying to set a DHCP server on 12.04. I installed: sudo apt-get install isc-dhcp-server My configuration files look like this: /etc/default/isc-dhcp-server INTERFACES="eth0" ...
3
votes
1answer
95 views

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 ...
0
votes
1answer
752 views

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 ...
3
votes
1answer
2k views

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 ...
1
vote
0answers
568 views

DHCP won't start / subnetting

I recently changed the IP address on an Ubuntu 12.04 server I have in my lab, which is running isc-dhcp-server. After doing so and modifying the dhcpd.conf file, my dhcp service would not start. I ...