The Dynamic Host Configuration Protocol (DHCP) is a network configuration protocol that assigns IP addresses and gateway configuration automatically.
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25 views
Wired network works in live CD but not after installation
Live CD and installation have working network connection.
But after installing, the network connection is offline; it won't connect! No automatic configuration, aka DHCP doesn't work.
Static ...
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0answers
20 views
How to provide gateway in dhcpv6 config file for clients?
I have installed isc-dhcp-server. It is working fine. Using this isc-dhcp-server, I can give ipv6 address, and dns address. But, I want to know how to give gateway for customers to go out for ...
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votes
1answer
30 views
Dhcpd: I have 2 Linux Ubuntu Servers running DHCP. Is it possible to install a 3rd DHCP server (which will run Windows Server)?
Im learning /etc/dhcpd.conf, and set up 2 dhcp servers that are running Ubuntu 1204. Do you know if I can make a 3rd dhcp server, but I want this one to run Windows DHCP (not AD, just Dhcp and ...
0
votes
1answer
35 views
Many dhclient processes running?
Is it OK to have many dhclient processes running? Or is this an error and you should always have one such a process? What does it mean? Why is it listening? Is this computer a DHCP client or is it a ...
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0answers
75 views
Local DNS resolver + dnsmasq in Ubuntu 12.04?
I need a local DNS resolver because my ISP DNS is seriously broken and breaks, in turn, many networks scripts.
Before Precise I could just install unbound and add 127.0.0.1 as a prepended name server ...
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0answers
60 views
How configure DHCP on Ubuntu 12.10
I have router 192.168.1.1 and machines connected through wire to it. I have also TP-Link connected with IP 192.168.1.2 and machines connected to it with IP 192.168.0.2 0.3 etc, some of them wireless ...
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0answers
24 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 ...
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1answer
32 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 ...
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votes
3answers
180 views
How do you actually configure DHCP in MaaS in Raring?
All the docs say is
If you are using MAAS to control DHCP, you need to set this via the web interface.
But I see no mention of DHCP in the web interface. What exactly do you click on to ...
0
votes
1answer
49 views
MAC address changing in Ubuntu 12.04 [duplicate]
I am trying to change the MAC address of my device. I tried the ifconfig way as well as the macchanger tool way. However although the MAC address changes on interface eth0. I do not get a DHCP based ...
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1answer
66 views
how to configure dhcp?
I have still problems with internet connection on my network using Ubuntu 12.10. I have router NetGear 192.168.1.1, then TP-Link running on his 192.168.1.2 and Ubuntu connected through wire to TP-Link ...
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1answer
27 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
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1answer
188 views
Regenerate resolv.conf from dhclient.conf without releasing/renewing IP?
When I make changes to dhclient.conf such as modifying the DNS search path (so that the changes don't get lost on reboot or DHCP renews), how do I regenerate /etc/resolv.conf? That page suggests ...
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votes
0answers
119 views
DHCP Server not working
I have installed isc-dhcp-server, and I wish to using this dhcp server as wireless hotspot. I have the following dhcpd.conf file in /etc/dhcp/dhcpd.conf
ddns-update-style none;
option ...
0
votes
1answer
112 views
Ubuntu as a Router/Gateway - Unable to access WAN
I am currently trying to set up a home router using a machine running Ubuntu 12.04. The machine has two ethernet ports. eth0 is LAN and eth1 is WAN.
I have set eth0 to a static ip and have eth1 ...
0
votes
1answer
40 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 ...
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0answers
187 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"
...
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0answers
52 views
MAAS on Ubuntu 12.10 Error Setting Page (DHCP Manual config)
I have already installed MAAS on Ubuntu 12.10 with the help of a lot of resource along with this forum.
I can now access http:// hostname/MAAS/Settings
I can login, i can see the user preference.
...
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0answers
17 views
network configuration with includes?
i saw in lot of ubuntu conf files that is containing include files. so, i think about that how to solve problem of many people that have dynamic ip address. so this question is based on that, to ...
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vote
0answers
49 views
DHCP can not obtain correct IP sometimes
I installed Ubuntu lucid on my Thinkpad x201i laptop.Recently I found it that when I connect my cable to my laptop in our school's library,my DHCP client can not obtain correct IP. I have to set it ...
1
vote
0answers
41 views
CUPS: HP printer DNS url
The URL for my printer generated by hp-makeuri looks like this:
hp:/net/Officejet_6500_E710n-z?ip=192.168.178.30
But the printer is on a dhcp enabled wifi network and so its IP-address does and ...
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1answer
156 views
How can I configure isc dhcpd to provide option 150 for Cisco phones?
Cisco phones use the proprietary option 150 to tell the phone what server to contact for configuration information.
How can I provide this option using the ISC DHCP server on Ubuntu?
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0answers
29 views
Execute a shell command in ISC DHCP
Can I execute a shell script and retrieve the return results in ISC DHCP. For example below doesn't work;
if(execute("/root/myscript.sh", "d", "add", "", "0"))
{
[..]
}
Was wondering if there's ...
2
votes
1answer
87 views
How to monitor DHCP leased ip address
I have Ubuntu server 12.10 as DRBL and CloneZilla. How can I find out how many IP addresses have been assigned to the clients. How do I control/monitor the DHCP daemon service(stop/start/status)?
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0answers
56 views
“Shared to other computers” in network setting turns off DHCP
(follow up to this - Sharing internet between mac mini (with ubuntu) and android - I guess)
I want to share a wired connection wirelessly.
The only way I found is to set the wired connection as ...
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votes
1answer
52 views
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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0answers
233 views
ubuntu 12.10 internet connection and dhcp problem
this question is related to my previous one (link).
my network topology is: NAT->modem->router(NetGear 192.168.1.1)->TPLink(192.168.0.1) TPLink gives me the wireless network at home. but I have also ...
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votes
0answers
38 views
https sites won't load
The other day, I installed some updates (in 12.10) and rebooted after I was prompted. I then found that I could connect to the router, but no websites would load. After several reboots and ...
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0answers
66 views
How can I get internet access? Desktops (switch) <- LAN -> Server <- WLAN -> Router (Internet)
I have the following setup:
Desktops (switch) <- LAN -> Server(Ubuntu) <- WLAN -> Router (Internet)
I want to have internet available at the desktops.
What do I need to install on the Server ...
1
vote
0answers
36 views
DHCP 'hotplugging' or failover
When some PCs are connected via a simple switch, that is also connected to an DHCP router, is it possible to have them autoconfiguring their IP adresses, if the DHCP is absent, but DHCP-configured, as ...
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0answers
52 views
DHCP Server to WLAN Users
I've tried doing research on this question, but I've been unable to find information on this specific situation.
I have Virtualbox 4.2.6 running two hosts, a Debian machine running isc-dhcp-server, ...
2
votes
1answer
102 views
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 ...
0
votes
3answers
275 views
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 ...
2
votes
0answers
44 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
66 views
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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votes
1answer
73 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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0answers
168 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 ...
0
votes
1answer
134 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 ...
3
votes
2answers
2k views
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 ...
1
vote
1answer
41 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 ...
2
votes
0answers
114 views
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 ...
0
votes
0answers
90 views
Not using DNS servers from DHCP
this seems to have changed last week I guessing with the updates. But my ubuntu 12.04 workstation is no longer using my internal DNS servers. I can resolve names on the internet, but nothing ...
2
votes
1answer
509 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 ...
0
votes
0answers
155 views
isc-dhcp not starting
I am currently trying to build a dhcp and firewall server for my home.
I followed the instructions posted on the Ubuntu Forums about setting up such a server.
As far as I can tell, I don't have any ...
1
vote
2answers
75 views
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:
################################
...
0
votes
1answer
52 views
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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0answers
50 views
Can not ping to window from ubuntu in LAN with DHCP
I can not ping from Ubuntu to Window in LAN but otherwise.
My router is set DHCP mode. Is there any configures?
1
vote
0answers
387 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 ...
1
vote
2answers
2k views
setup dhcp server - “Job failed to start”
I have an eth0 and eth1, eth0 has dynamic ip and on eth1 i setup static ip:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto eth1
iface eth1 inet static
address 10.10.0.1
...
0
votes
0answers
73 views
dhcp configuration not working ubuntu 11.10
I am usually behind a proxy server in college so I connect to the ethernet or wifi using manual IPv4 addresses only inside college. I have been trying really hard to get the internet work at home, ...
