Ubuntu Networking :: DHCP3 Server Won't Start?

Feb 1, 2011

I have followed the ubuntu guide for setting up a dhcp3-server server for my internal network, I have installed dhcp3-server, configured it refuse to start, here are some background:This is my /etc/default/dhcp3-server:

# Defaults for dhcp initscript
# sourced by /etc/init.d/dhcp
# installed at /etc/default/dhcp3-server by the maintainer scripts

[code]....

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Ubuntu Servers :: Dhcp3-server Fails To Start - Can't Open /etc/dhcp3/dhcpd.conf: Permission Denied

Oct 1, 2010

I installed dhcpd using:

Code:

Now when I try to run it, I get this weird error:

Code:

The error was:

I changed permissions to 777:

Code:

To no avail!

It's got something to do with AppArmor.

I don't think it is installed on this system:

Code:

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Ubuntu :: Can't Start Dhcp3 Server Errors Are Come?

May 3, 2011

I'm using ubuntu 10.04, Im going to setup LTSP sever, But I cant start dhcp3 server this errors are come, how can I fix this this error comes when I tried to start dhcp3 server

lachitha@lachitha-desktop:~$ sudo /etc/init.d/dhcp3-server start

[Code]...

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Networking :: Cannot Get DHCP3-Server To Work Under Ubuntu 9.10

Jan 7, 2010

I've never had this much trouble, but maybe it's because I have not setup a dhcp3-server in some time.

My server has three NIC cards. The Internet connection is on eth2, and I'm trying to get connect other computers to the server through eth0.

It's suppose to be relatively easy, unless I'm assigning specifics, right?

Code:
#
# Sample configuration file for ISC dhcpd for Debian
#
# Attention: If /etc/ltsp/dhcpd.conf exists, that will be used as

[Code]....

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Ubuntu Networking :: Disable Dhcp3-server On Startup?

Jun 26, 2010

I have an old Linksys WUSB54G USB wireless card lying around, and occasionally I like to use it as an access point for my laptop. For assigning IP addresses I use dhcp3-server. The only problem is that the server attempts to start itself up on boot, which I do not want- I want to start it up manually if I need it. how to disable this service on boot?

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Ubuntu Networking :: Dhcp3-server Is Not Committing Correct Dns-address To Win XP Client?

Oct 15, 2010

I'm troubling setting up my dhcp3-server.Although I've configured "option domain-name-servers 192.168.1.1" in my dhcpd.conf my windows-xp-clients dns-server address is set to 192.186.1.1.This is strange! All other things seem to work correctly.This is my dhcpd.conf:

Code:
ddns-updates on;
ddns-update-style interim;

[code].....

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Networking :: DHCP3 Server - Setting Double Range Of IP Address

Apr 27, 2010

I would like to set a double range of IP address with my DHCP3-server. Now, I have eth0 (which is my only network card) with this IP address : 172.16.93.1 and I have created a second interface eth0:1 with this address: 192.168.3.1. The goal is to give an IP address 172.16.93.X to phones (with option 66) and the IP address 192.168.3.X to the computers.

This is my DHCPD.conf :
ddns-update-style none;
option domain-name "mycompany.com";
option domain-name-servers 172.16.93.1;
default-lease-time 3600;
max-lease-time 2347200;
authoritative;
log-facility local7;
option ip-forwarding off;
default-lease-time 20;
max-lease-time 20; .....

Right now my DHCP server work fine, (I means, no error at the startup ) but the server give always the same kind of IP address, whatever if it's a phone or a computer. I notice something "wired", if I put the :
subnet 192.168.3.0 netmask 255.255.255.0 {
range 192.168.3.100 192.168.3.199;
option routers 192.168.3.254; }
(Which is first in the dhcpd.conf) after the "subnet 172.16.93.0 netmask 255.255.255.0", the server will give IP address 172.16.93.X at all the clients. Is it possible to give more than one IP range with one network card at the same time? And how set the option 66 to only give IP address (172.16.93.X) to the phones?

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Ubuntu Servers :: DHCP3 Won't Start / Restart - Sort It?

Feb 7, 2011

Ubuntu 10.10 w/ dual NICs

here's my etc/network/interfaces file code...

Here's the problem -- DHCP wont start and throws the error "Can't create PID file /var/run/dhcpd.pid: Permission denied." Somewhere I found a post that indicated that the following corrected the issue (I dont really know why):

ln -s /var/run/dhcp3-server/dhcpd.pid /var/run/dhcpd.pid
dhcpd3 -cf /etc/dhcp3/dhcpd.conf eth1

When I do the above DHCP will start (in theory, at least no erros are thrown). But if I ask DHCP to restart, it will stop, but not restart. And the error is "No subnet declaration for eth1 (192.168.3.2)"

I'm newbie-ish. Help me Obi-Wan Kenobi.

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Server :: DHCP3-Server Giving IP Addresses Depending On MAC

Apr 11, 2011

I have dhcp3-server (isc-dhcp-server) installed on my Debian and now I got a question about how it's giving the IP addresses to new devices.

For example: I connected my laptop and dhcp server gave me 192.168.1.5 address. Will it always give me the same ip address when I connect my laptop or it will eventually change after some time (week-month)? If it's not changing it, then I am wrong about this.

BUT...If I am somehow correct and if it will change in a week and give me another random (like 192.168.1.8) IP even I won't change my laptop network adapter, is it possible to configure dhcp server to always give same IP address depending on what MAC it is?

To make it clear, I want that when I connect new device (new laptop/pc) dhcp server would give it random IP but same time it would note the MAC address and never change the IP on that MAC.

I know about MAC filters, but setting filters is when you know MAC address since beginning and want to assign IP for it, but in my situation I don't know the MAC address.

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Ubuntu :: Dhcp3-server On Computer Doesn't Respond?

Sep 11, 2010

I need to create a network boot from 1 laptop to another, with a crossover ethernet cable between them, no routers no nothing, my computer is supposed to be the server. I followed half dozen tutorials over the internet but I think my major problem is with the dhcp serverfollowed this tutorial[URL]but when the client boots it makes several dhcp requests but doesn't respondwireshark capture looks something like this until the client times out

Code:
1 0.000000000 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x200d8ad

[code].....

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Mar 7, 2011

I'm writing because my ubuntu server has started with troubles .
It's running Linux 2.6.32-29-generic-pae kernel for ubuntu server 10.04 and after the last update it stopped from giving addresses on clients connected.
Dhcp3 server it's running and the conf files are fine, but i can only use static addresses assignation now...
Also MYSQL has stopped working (installed for Bacula purpose) but now the dhcp problem is the biggest issue. I work in an office where dhcp is fundamental, too much clients (about 15) that are personal laptops also (so static assignation for clients is not a good choose).
Please any one could help me? It's two days I'm trying to figure it out without success.
also tried removing and reinstalling dhcp3-serer...no way.
Here are my conf files code...

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Ubuntu Networking :: DHCP3 Reservations Being Ignored?

Mar 30, 2011

Have DHCP3 running on an ubuntu server. Using config of the below but the 10.1.1.2 address is being given to a windows pc (which does not have that MAC address). Tried getting windows to release ip address, then clearing the lease file and restarting dhcp3 service, then renewing dhcp request from windows, but address 10.1.1.2 is still given.

Code:

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Ubuntu Servers :: Setup A DHCP3-server On Brand New Learning 11.04 ?

Jun 3, 2011

I been trying to set up a DHCP3-server on my brand new learning Ubuntu 11.04 server. I can connect when i put the IP infomation in manually, so I know everything else is working, just got to fix the DHCP problem before I put the machine into production on my home LAN. Can someone tell me if these config files located at /etc/dhcp3/dhcpd.conf and another at /etc/default/dhcp3-server are correct? eth1 is the NIC that will be the LAN side of the network, I double checked that...

Code:
/# A slightly different configuration for an internal subnet.
subnet 192.168.10.0 netmask 255.255.255.0 {
range 192.168.10.10 192.168.10.200;
option domain-name-servers 8.8.8.8, 8.8.4.4;
option domain-name "linuxrouter.local";

[Code]...

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Debian Configuration :: DHCP3 Server Giving Wrong Ip Address?

May 20, 2011

Hey guys. I have a client computer PXE booting from my host computer and it is supposed to give the client the ip address 172.16.0.100 however instead it gives it the ip address 172.16.0.208.

I have this set up working with two other computers and there is no noticeable difference other than mac addresses for the network card.

Here is an extract from my '/etc/dhcp3/dhcpd.conf' file...

ddns-update-style-none;
option domain-name "example.org";
default-lease-time 600;
max-lease-time 7200;

[Code]....

I have quadruple checked the mac address of the client and it is definitely "00:07:E9:32:16:81" so why is it not giving it the IP address that I have specified?

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Ubuntu Networking :: Restart Dhcp3 After Changing Dhcpd.conf?

Jan 17, 2010

ver: 9.10 how do I restart dhcp3 after changing dhcpd.conf?

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Jun 15, 2010

v10.4 {I have completely re-edited this thread because I have started over fresh. I am no longer using bind9, but now using the installation-defaults nameserver and dhcp and trying to get a handle on how things ought to be setup properly. My previous attempts was a disaster.}

Coming fresh out of a newly installed 10.4, I obviously was able to get network connectivity but then I ran into trouble the minute that I tried to change eth0/eth1 connections via network-manager's applet. What I found was, that when I attempted to define static connections, all bets were off. It seems that once one attempts to change eth0/eth1 which are wired devices, I was no longer able to recover my network connectivity!

I was however able to setup a wireless connection, so in this way I was able to get back network (and Internet) connectivity, and write this thread on this forum. I notice also, that there is no longer 'Networks' in the System->Administration menus! Geez, what the hell is going on? how to properly configure my static wired connection? Networks in 10.4 have really changed alot!

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Aug 25, 2010

Had problems with internet and deleted this by mistake now how do I get it back? note that I have no internet access so I cannot use Synaptic.

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[Code]....

why won't the ssh server start i gave it a port and address whats missing do i have to downgrade the version number?

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May 1, 2010

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Jan 10, 2010

I'm trying to configure a DHCP server but when I try to start it it just fails.

Code:
log
Jan 10 16:25:52 SRV-LINUX00 dhcpd: Copyright 2004-2008 Internet Systems Consortium.

[code]....

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May 10, 2011

This is kinda strange, i just installed dhcp3-server in ubuntu 11.04 , but when I try to find the starting script in /etc/init.d/dchp3-server start, it states

bash: /etc/init.d/dhcp3-server: No such file or directory

I have installed the dhcp3-server,howcome there is no script for executing dhcp server?

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I have been at this for what seems like forever but i am getting somewhere after many errors i got dhcp3 reading the file and everything is almost there but now i got an error i cannot figure out.first my config file

HTML Code:
shared-network local {
subnet 192.168.0.0 netmask 255.255.255.0 {

[code]....

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Jan 1, 2011

I want to display the associated host name with each address.

I've found the /var/lib/dhcp3/dhcpd.leases file, but it appears to have an entry for every time a lease was issued so it's hard to tell which ones are currently active.

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I have setup a CentOS 5.5 server as a DHCP server. That will be it's only task in a Cisco callmanger VoIP environment The DHCP server that comes with CentOS 5.5 is from ISC V3.0.5 -redhat.

The server (HP DL360) has two physical NIC's of which only NIC1 is used (ETH0)

ifconfig shows:

Code:

The interface has a fixed IP setup.

My dhcp.conf file looks like this:

Code:

When I start (try to) dhcpd via the service interface or via the prompt as

Code: service dhcpd start

I get an [FAILED] message and the following is in /var/log/messages

Code:

But when I start the DHCPD on the comamnd prompt in debug mode it looks as follows:

Code:

and /var/log/messages shows:

Code:

Why does the system ask a declaration for eth0 0.0.0.0?

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I'm configuring a new Centos 5.5 server in replacement of an old W2K server.The topology of our network is simple : one file/dhcp/dns relay server and workstations (PC's and some MAC's) plus network printers and scanners.All the workstations have dynamic IP addresses (easier because a lot of 'dynamic' changes : new persons with their own laptop, ...) and the server and printers/scanners have fixed IP addresses.I edited the dhcpd.conf (see here underneath), I have the file dhcpd.leases but it doesn't start !

DHCPD.CONF
ddns-update-style interim;
ignore client-updates;

[code].....

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