When I boot from my freshly installed system (10.04 LTS Server 64bit), there is no network available. Each attempt to obtain a dynamic IP address via DHCP, fails - there is no DHCPOFFER coming back.
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kdm startet nicht automatisch nach update von 11.3 auf 11.4?
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Back in April I set up a Ubuntu DHCP server and a multiple VLAN network [URL] to migrate our various servers, workstations, etc off the 192.168.1.1 /24 network that everything was on because we where running out of address space. I built out the new network and everything worked great except our AD server would never get an IP address from the DHCP server (static reservation) and even if I set the IP statically on the AD server it couldn't ping the gateway and noone could log in. After several attempts to resolve this, including bringing in outside help, we where never able to figure out what the problem was.
Now 6 months later I have time to revisit the issue without effecting the live network. I used Acronis and imaged the AD server last Friday, cloned it on to another box with the same hardware, and put it up on the new network that's been sitting unused for the last 6 months. Today when I statically set the IP on the AD server (which is what I want) it connects and I can ping it's gateway 192.168.1.1 and all the way across vlans to a test sales agent workstation at 192.168.8.xxx on vlan 800 but only if I statically assign the agents station an IP address. When I try to get an IP address via DHCP it fails as destination unreachable. Nothing has changed in the last 6 months on the DHCP server but now it for some reason can't ping its default gateway 192.168.1.1. All of the config files are the same as they where left from the post linked above aside from the vlan id's used where changed from 1's to 100's (i.e. vlan 3 is now vlan 300) /etc/network/interfaces
Code:
auto lo
iface lo inet loopback
auto vlan100
iface vlan100 inet static
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why it can't reach the gateway, when I do a tcpdump I can see the DHCP requests come in on eth0 but the server never responds and I'm pretty sure its because it isn't "seeing" them since it thinks there isn't a network connection but I don't know how to trouble shoot to find out where the problem lies.
Back in April I set up a Ubuntu DHCP server and a multiple VLAN network [URL] to migrate our various servers, workstations, etc off the 192.168.1.1 /24 network that everything was on because we where running out of address space. I built out the new network and everything worked great except our AD server would never get an IP address from the DHCP server (static reservation) and even if I set the IP statically on the AD server it couldn't ping the gateway and noone could log in. After several attempts to resolve this, including bringing in outside help, we where never able to figure out what the problem was.
Now 6 months later I have time to revisit the issue without effecting the live network. I used Acronis and imaged the AD server last Friday, cloned it on to another box with the same hardware, and put it up on the new network that's been sitting unused for the last 6 months. Today when I statically set the IP on the AD server (which is what I want) it connects and I can ping it's gateway 192.168.1.1 and all the way across vlans to a test sales agent workstation at 192.168.8.xxx on vlan 800 but only if I statically assign the agents station an IP address.
When I try to get an IP address via DHCP it fails as destination unreachable. Nothing has changed in the last 6 months on the DHCP server but now it for some reason can't ping its default gateway 192.168.1.1. All of the config files are the same as they where left from the post linked above aside from the vlan id's used where changed from 1's to 100's (i.e. vlan 3 is now vlan 300) /etc/network/interfaces
Code:
auto lo
iface lo inet loopback
auto vlan100
[code]....
why it can't reach the gateway, when I do a tcpdump I can see the DHCP requests come in on eth0 but the server never responds and I'm pretty sure its because it isn't "seeing" them since it thinks there isn't a network connection but I don't know how to trouble shoot to find out where the problem lies.
Currently I have my eth0 interface getting a DHCP address but at times the DHCP server will not be reachable. Sooo what I would like my server to do is if it cannot find a DHCP server assign a static address to eth0. Then start the DHCP service so it can then dish out some addresses.How can I do this? Surely it is possible
View 2 Replies View RelatedI have an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices.My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server.One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network.
View 4 Replies View RelatedI have an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices. My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server. One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network. However I have no idea how this could be setup.
View 2 Replies View Relatedfirst: PXE flawless bind to dhcp address but put next binding state to free second: when installer calls init script to reinit ethernet driver (e1000 (vmware)) binding fails 11.2 opensuse fail to reinit dhcp with log entry "no free leases" third: when manual set network install works how to preserve dhcp lease on reinit of driver?
View 1 Replies View RelatedI am puzzled with trying to configure a linux (openSUSE) client to dhcp to eBox DHCP server. I am using dhclient to lease an IP address with dhclient eth0 -s 10.45.48.108 and get a response
openSUSE11232CL1 dhclient: DHCPDISCOVER on eth0 to 10.45.48.108 port 67 interval 4
openSUSE11232CL1 dhclient: DHCPOFFER from 10.45.48.108
openSUSE11232CL1 dhclient: DHCPREQUEST on eth0 to 10.45.48.108 port 67
openSUSE11232CL1 dhclient: send_packet: Network is unreachable
openSUSE11232CL1 dhclient: send_packet: please consult README file regarding broadcast address.
The server reports eBox141 dhcpd: DHCPDISCOVER from 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
eBox141 dhcpd: DHCPOFFER on 10.45.200.2 to 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
I interpret this as the server receives the request and the client accepting it but the lease does not last long and the connection breaks. what this could be and why the connection breaks? Or my undestanding is totally wrong on how it works and should work? And BTW, where is that README file that's referenced in the message I receive on the client?
During the Ubuntu Minimal 10.04, 10.10 or XBMC Live (Ubuntu 10.04) I get a DHCP automatic configuration fail. If I change to manual and put the IP, gateway, mask and DNS servers, the installation goes fine but when I boot I don't have a connection.Installing Ubuntu minimal 11.04 everything works.My system is an Asus AT5IONT-i and it's connected by wire to my router. I've double checked the cable and the router and all seams fine.
View 9 Replies View RelatedI am a web designer and don't know anything about servers. My server service provider use Linux environment and sometime it would be much easier for me to have a local server to test my websites. So I have install a fresh copy of Ubuntu 10.04 to one of my computer. Half way installation, the system tell me something like couldn't configure the DHCP, I have checked that my router has enabled DHCP servers (D-Link 615). After installation and logon, I use sudo pppoeconf command and try to set the network.
But it said something like no PPPoE access. I know I am very dull, and maybe get ban from this forum because I have not read the instruction, it will be great if you can point me to the right page. All I want to do is have something like a web space + MySQL and support PHP to work with.
I just upgraded my Ubuntu Server from 10.04 to 11.04. I am having issues with the ethernet connection upon boot. The connection will blink slowly and not stay connected to the network. If I then unplug the ethernet from the switch and then replug it in, eth0 will get a steady connection, at which point I have to run the following command to get everything working.
Code:
sudo dhclient eth0
After running the command I have no issues with the ethernet connection.
lshw -C network
Code:
*-network:0
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For a school project I need to install a Fedora virtual machine (on VMware Server), setting it up as a server. I am encountering the following problem.
When I want to 'yum install dhcp' I get the following error message:
Quote:
I think the link to the download site is not right.
I have checked internet and DNS acces, both are correct and tested..
I have opened the /etc/yum.repos.d/fedora-core.repo file, and this is the entry:
Quote:
Im using Fedora Core 5.
I am trying to install dhcp server on F12 with yum, but at the time I issue yum install dhcp, I got the following message:
Transaction Summary:
Install 1 Package(s)
Upgrade 0 Package(s)
Total size: 821 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Check Error:
file /usr/share/man/man5/dhcp-eval.5.gz from install of dhcp-12:4.1.1-5.fc12.i686 conflicts with file from package dhclient-12:4.1.0p1-17.fc12.i686
file /usr/share/man/man5/dhcp-options.5.gz from install of dhcp-12:4.1.1-5.fc12.i686 conflicts with file from package dhclient-12:4.1.0p1-17.fc12.i686
And I see that if I uninstall the dhclient package, I will lose my networkmanager, which I also need, is there a way to have a dhcp server as well as dhclient utility on fedora as it is possible on rhel?
I've run into a situation where when performing a pxe/preseed install the system boots up into the install without issue, getting a dhcp address, then the installer begins to configure the network and it gets to where it request a dhcp address and it instantly fails the install stating that we are either not using dhcp or it's slow.
I've added d-i netcfg/dhcp_timeout string 600 to the preseed file but it doesn't seem to be honoured here since it doesn't wait 600 seconds before failing. I have 2 other identical systems that install using the same preseed file but the installer completes as expected. This system has no issues installing centos just debian fails. I did try, once the install failed, to switch to the console and run udhcpc and the server received the address reserved for it.
Is there a method to force debian installer to wait a bit longer for the dhcp server besides what I've already done?
I am create Xen virtual machines.
I created a domu.cfg file with:
xen-create-nfs --ip 192.168.13.2 --broadcast 192.168.13.255 --gateway 192.168.13.1 --netmask 255.255.255.0 --nameserver 192.168.13.1 --initrd /boot/initrd.img-3.18.0 --kernel /boot/vmlinuz-3.18.0 --memory 4096M --mac 00:16:3e:01:01:01 --nfs_server myserver --nfs_root /var/exports/myhost --hostname myhost
I initialized it with:
xt-install-image --cache yes --dist wheezy --apt_proxy http://192.168.13.1:3142/ --mirror http://ftp.fr.debian.org/debian/ --location /var/exports/myhost
Then I started the domu with:
xl create /etc/xen/domu.cfg -c
And I receive this message telling me dhcp is used as I specified static ip:
IP-Config: eth0 hardware address 00:16:3e:01:01:01 mtu 1500 DHCP RARP
What can I do to desactivate the dhcp client?
remark: I used this equivalent former configuration with qemu-kvm and I booted with static ip without any problem.
This dhcp server is configured with redhat enterprise edition. I found that logs are generating in the following path /var/log my doubt is how can i setup the logs generating for a specified day.
View 1 Replies View RelatedSearched this forum and Brother's resources but still can't get the Brother HL-2070N to play on 10.04. Especially troubling since 10.04 is an LTS. Wether throught SPM or Brother's PreInstall followed by an RPM converson I still can't locate the correct drivers. Done it countlees ways and still have never seen HL-2070N show up on the driver screen. Still stuck with HL-2060 whose best match flags "out of paper".
BTW; using a "reserved" IP under DHCP for the networked printer. Essentially a fixed IP.
I recently purchased a Dell Vostro v130 which came with Win 7 pre-loaded. I've been using it for a few weeks with no problems, but now I'd like to install ubuntu studio. I made it through the the partitioning part but now I'm getting a networking error: "Network autoconfiguration failed. Your network is probably not using the DHCP protocol. Alternatively, the DHCP server may be slow or some network hardware is not working properly."
I've been using the wireless connection in win 7 without any problem so I don't know why I'm having a problem now.
I'm having trouble obtaining an ip from dhcp. Not sure what the problem is. My router doesn't display as the cable being connected.I've run dhclient multiple times, no go. i've performed:
ifconfig eth0 down
ifconfig eth0 up
dhclient eth0
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apparently someone on my LAN is running his own DHCP server (by mistake i assume) and broadcasting an address (it is 192.168.1.155) prevents me to connect to the 'real' DHCP server (195.249.186.1) thus the internet. how can i connect to my usual DHCP server? what commands should i use?
View 5 Replies View RelatedI'm kinda new to this. I've had my laptop dual booted with vista and Ubuntu for about a year. I'm just now starting to configure Ubuntu for a DNS and a DHCP Server.
View 2 Replies View Relatedi have the minimal install and im having network problems. after connecting and running dhclient i only have internet access for a minute or two before needing to re run dhclient. i tried making it run in cron every minute but my computer kept locking up. what could be causing this?
View 1 Replies View Relatedi was wondering if there is anybody out there who has logwatch running and configured to just grab dhcp leases only
View 3 Replies View RelatedI have a small server that will collect industry machine info and report it to our main server here. Now, we plan to make a few of these units but we will need to be able to remote into them (ssh) to kick off the operations when they are delivered. Problem is, how can i ssh into a machine that has an ip given by dhcp? I could have the server send me it's internal and external ip, but that still does not open port 22 (or whatever i need) on the router so i can get to it from an outside line.
View 3 Replies View RelatedI had my laptop at work for a few days and when I brought it home I couldn't open up web pages any more. I have a DHCP connection (shaw cable).When I plug the chord from the modem into my windows machine I can open up web pages. When I plug it into my ubuntu laptop I can't open up web pages.
I have tried unplugging the modem and restaring my computer.I think that there is some sort of connection because when I open up Network tools it shows that I am continually receiving packets. As soon as I unplug the ethernet wire I stop receiving packets. For some reason I just can't open web pages.I also tryed typing 'sudo ifconfig' and 'sudo dhclient' in a terminal. I don't fully understand what this means but I saw it in another forum.
I just installed ubuntu for the first time, and I am not very familiar with everything yet but i am trying to connect to my university's wireless network and can't seem to figure it out. These are the directions they provide for linux users:
Use linuxconf Start linuxconf, go to Basic Host Information under Networking and Client Tasks.
Click Adapter 1, and select DHCP.
Click OK and Apply Changes.
Finally, reboot
I tried running linuxconf from the terminal but no such command exists, is there a similar one for ubuntu?
I am setting up dhcp server for my public library and need to divide clients into a number of pools on the same network. The different ranges will be for different filtering requirements via squid/dansguard proxy. I have inhouse clients: staff, adult patron, and child patron, that have different filtering requirements and wireless guests that I want to shorter lease times to handle the rapid turnover rate. Trying to understand the terse manual, you assign pools via allow/deny members of classes, but classes are assigned by matching on mac address or vendor ids. Unfortunately as a poor rural library we have a hodge-podge of hardware with no matchable pattern. So I can solve the inhouse clients by using fixed-address, and remove them from the dynamic pool. Now the dhcp server would be serving only the short term wireless guests from the pool.
A common problem at libraries, you always get a few that are compelled to misbehave and break the libraries TOS. In the past the librarians would kick the offenders out of the library only to have them link in from the step or parking lot. Since I have their mac address in their initial lease I would like to prevent them from reestablishing a connection when they are banned.
My thinking is this; the library's computers are static and not part of the pool, the wireless clients would be unknown-clients, so set the pool to allow only unknown-clients, and for the "bad-boys" add their hosts in a group directive would make them "known" and therefore unable to get a IP from the dhcp server.
group {
host banned1 { hardware ethernet 00:00:00:00:00:01; }
host banned2 { hardware ethernet 00:00:00:95:a6:c1; }
host banned3 { hardware ethernet 0c:f1:b6:fe:00:01; }
}
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Recently, I have encountered a problem when setting my network configuration.I want to automatically get an IP address through DHCP at system startup, and this can be done by editing /etc/network/interfaces file, adding
auto eth0
iface eth0 inet dhcp
The problem is that I want to set a static DNS, but DHCP will automatically overwritten /etc/resolv.conf file.
What should I do?
Alright, I'm running Ubuntu KK 9.10 and I've probably read every ICS tutorial on ubuntuforums. I'm running wireless internet via a Linksys router and have a LAN card in my system as well.
(lshw -c network)
Code:
I tried the easy route with 9.10 (setting my wireless to DHCP and LAN to share connection) and although Ubuntu recognizes the Xbox when its turned on (I get a nice notification saying my wired connection is active) the Xbox gets no internet, and doesn't even recognize the connection. (when I tested the connection it failed before it even hit network...)