0
votes
0answers
23 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. ...
0
votes
0answers
13 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 ...
-1
votes
0answers
21 views

maas user interface does not talk to or sets up dns/dhcp

after setting up maas, i go to the ui http://xxx.xxx.xxx.x/MAAS. when i go to the cluster settings, and select dhcp/dns setting fill in all the info, and i get nothing. i do a dpkg -l maas-dhcp ...
6
votes
2answers
121 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
0answers
35 views

How to create a new internal DHCP server on Ubuntu?

In office, we have a router which provides DHCP features and its subnet is 192.168.1.x. The router IP is 192.168.1.1. I want to setup a new subnet to try Hadoop cluster using isc-dhcp-server on Ubuntu ...
1
vote
1answer
62 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
70 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
26 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 ...
1
vote
0answers
55 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 ...
1
vote
1answer
39 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
0answers
35 views

Relinux - “waiting for network configuration” problem

I installed Ubuntu 12.04 base system via the "minimal ubuntu" ISO. I make a script to get hostname from dhcp server as explained here. It works perfect. I don't install network manager because I ...
1
vote
1answer
74 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
58 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
47 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 ...
2
votes
1answer
120 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
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
0answers
22 views

How do I set up a ltsp server inside a windows DHCP network

How do I set up a ltsp server within a windows DHCP network. How do you make it to only assign DHCP to certain Mac addresses? Then once that is done, do I need to rebuild the thin client?
0
votes
1answer
43 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 ...
0
votes
0answers
193 views

Resolvconf is not updating resolv.conf file when connecting via DHCP

I'm running 13.10, and when I connect to a wired network which is configured in Network Manager for DHCP, I get an address, but resolvconf is not updating /etc/resolv.conf properly. I get an IP ...
1
vote
1answer
139 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 ...
2
votes
1answer
211 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 ...
2
votes
1answer
67 views

How to know my dynamic ip is comming from which DHCP server?

The situation: On my LAN there are more than DHCP server running and all are on the same range. Now i use a machine who got an ip dynamic from a DHCP server. I have to know From which server it ...
1
vote
1answer
56 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
0answers
63 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
68 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. ...
0
votes
0answers
35 views

Cannot connect to the network anymore using DHCP

It's an apartment house's network and the connection worked fine for two days until yesterday. Problems are same plugging in directly with network cable or using a switch. If I boot with windows, ...
0
votes
0answers
122 views

Network starts slow on Ubuntu 13.10 start or resume

I have this laptop (ThinkPad X1 Carbon) with Windows 7 and Ubuntu 13.10 dualboot. Recently upgraded from Ubuntu 12.10. The good thing about this upgrade is that Ubuntu 13.10 starts very fast compared ...
1
vote
0answers
182 views

adding request to DHCP starvation using Scapy?

using this code for DHCP Starvation conf.checkIPaddr = False ...
0
votes
1answer
124 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
72 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
0answers
47 views

DHCP starvation with Scapy (12.04) only “starves” one single address repeatedly

so im running this: conf.checkIPaddr = False ...
0
votes
2answers
277 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
40 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
2answers
2k 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 ...
0
votes
0answers
21 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 ...
0
votes
0answers
21 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
116 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
34 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
0answers
113 views

Mininet problem in allocating IP address

I have encountered a problem in Mininet. The eth0 is allocated to NAT in Mininet and has a certain IP address to connect to the internet. But when I define a host only adaptor, the IPv4 is allocated ...
0
votes
1answer
765 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
0answers
100 views

DHCP Renewing every 1 second in 13.10

I've upgraded to Ubuntu 13.10 by doing a brand new fresh install then update and noticed that in /var/log/syslog I'm continually getting messages like: Dec 8 02:44:15 running-shoe dhclient: ...
0
votes
0answers
31 views

GSM does not work: DHCP instead of PPP?

I built an Erricson GSM device into my ThinkPad and am trying to get it work on Ubuntu. The GSM network is functional with Windows, so the hardware is working and and APN and credentials are correct. ...
0
votes
1answer
97 views

Ubuntu 12.04 LAN settings after changing ISP and modem : The Network Path was not found !

There is probably a very simple answer to this but it has me stumped. I have a Ubuntu 12.04 machine on a windows LAN. Previously I could find the shared folders on the system by using ...
0
votes
0answers
53 views

What should be the proper dhcp configuration for creating a ntwork over eth0?

Even not under a real server like scenario, I'm testing with dhcpd for learning and practice purposes. I'm using Ubuntu 12.04 LTS. I want to offer a network by my eth0 interface. I receive ip and so ...
0
votes
1answer
96 views

408 error in browser using Google or openid on some networks in Ubuntu [duplicate]

I have searched here and the web and many other people have similar issues going back a few years (My Google Account not working properly with Ubuntu for example), but no one seems to have fixed it. ...
1
vote
1answer
658 views

DHCP for multiple subnetworks with one NIC

I am trying to run DHCP server on Ubuntu 12.04. I need to configure several pools (different sub-networks) using one interface card. So I have configured below: sudo nano /etc/network/interfaces ...
0
votes
1answer
232 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
380 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 ...
5
votes
1answer
497 views

How can I stop sending my hostname via DHCP?

Ubuntu sends my computer's configured hostname to any DHCP server it tries to use. How do I stop it from sending a hostname?