How can we use DHCP to find or allocate ipaddress in ubuntu.I have connected Hawkboard, i need to known the ip address of my system and hawkboard. how can i find ip address of board connected to system, i have used serial port null modem cable and ethernet crossover cable between the board and system
View 3 RepliesI've tried to configure DRBL server to use Clonezilla and that is required me to setup DHCP, TFTP serversBut I've gotten a lot of errors from them - so please look at my attachments from /var/log/messages and dhcpd.conf - help me to find out what are wrong with them.
Feb 23 09:47:46 eth0-eth0 last message repeated 17 times
Feb 23 09:55:06 eth0-eth0 dhcpd: DHCPREQUEST for 192.168.1.53 from 00:13:20:36:26:28 via eth0: unknown lease 192.168.1.53.
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I've tried to configure DRBL server to use Clonezilla and that is required me to setup DHCP, TFTP servers.But I've gotten a lot of errors from them - so please look at my attachments from /var/log/messages and dhcpd.conf - help me to find out what are wrong with them.
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I want to install Ubuntu LTSP on top of an already existing system. However, I want to use a different DHCP and TFTP server. Do I simply just install 'ltsp-server-standalone' with apt and run 'sudo ltsp-build-client', stop the DHCP and TFTP server and stop them from starting automatically? Would I then just copy over the pxelinux.cfg/default file from /var/lib/tftpboot along with the initrd.img and vmlinuz images to the TFTP server?
Edit: Do I need to actually copy the whole /var/lib/tftpboot/ltsp directory over to the TFTP server?
When I try to pxe boot a Sun X4100 (which actually has a RHEL OS on it right now) I get the message TFTP open timeout. All traffic is allowed for port 69 udp in both directions. I do get a dhcp address. I see that both on the server and the client it gets an IP. After that I get this message in the logs:
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I am trying to transfer a file using tftp between two PC's. I have installed tftp-server, tftp, xinetd on both PC's. I am unable to transfer the file between the two systems. although the self transfer is working on both the system. I am getting the error "Transfer timed out"
cat /etc/xinetd.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer
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I have called an script in cronjob named get_mac.sh as follows:
#!/bin/sh
MAC=`ifconfig eth0 |sed -n 1p|awk '{print $5}'|awk -F : '{print $1$2$3$4$5$6}'`
ARG_FILE="/etc/asterisk/scripts/server.params"
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I am trying to put a file from one linux machine to my other linux machine. There is absolutely no problem in downloading the file i.e. performing the "get" operation but when I try to upload or "put file" from my host1 to host2 it throws error "Error 0 Permission denied". I am able to put files from host2 to host1 without any problem but not from host1 to host. Infact if I try to tftp even localhost on host2 it throws the same error. Here is my
/etc/xinetd.d/tftp file for host2
service tftp {
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -c -s /tftpboot
#disable = yes
disable = no
per_source = 11
cps = 100 2
flags = IPv4
}
And permissions on /tftpboot are 777
[root@LinuxServer /]# ls -ld /tftpboot/
drwxrwxrwx 2 root root 4096 Jan 6 05:21 /tftpboot/
[root@LinuxServer /]# ls -l /tftpboot/
total 16
-rwxrwxrwx 1 root root 11 Jan 6 06:16 new_test
-rwxrwxrwx 1 root root 12 Jan 5 06:02 test2
And the command which I am using is :
[root@LinuxServer /]# tftp localhost -c put new_test
Error code 0: Permission denied
And ya here is /etc/sysconfig/selinux file is as under :
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - SELinux is fully disabled.
SELINUX=permissive
# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted
first: 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 RelatedBack 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
[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.
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.
I 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?
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 RelatedI am having problem in booting target system from pxeboot.On hp blade bl460.My network boot server is cobbler
CLIENT MAC ADDR: 00 A0 A5 5D C9 C8 GUID: 00020003 0004 0005 0006 000700080009
CLIENT IP: 10.113.105.93 MASK: 255.255.255.0 DHCP IP: 10.113.105.90
GATEWAY IP: 10.113.105.1 10.113.105.2
Press F12 for network service boot PXE-M0F: Exiting Intel Boot Agent. When i take tcpdump on server i see dhcp discover and dhcp offer coming and going out but no tftp request on cobbler server in var/log/messages also i am seeing dhcp offer and discover
I have a custom Ubuntu distro that run both from a CD and PXE boot. The problem I have is that I need to boot in an environment that has to be routed through a router that can't forward NFS (the protocol doesn't use a standard port) I found that the Ubuntu based Clonezilla Live CD has a option like "fetch tftp://server/folder/filesystem.squashfs" I can borrow the kernel and initrd and it works, but how do I add this feature myself? Is there a package I need to install or a initrd option I need to add?
View 1 Replies View Relatedim trying to setup a tftp server on red hat linux. Ive gone through like all the instructinos online. And like i didnt get any errors or anything when typing the commands on the terminal but basically every time i try to test it i never works sooo im not really sure how im suppose to do this. basically i have a tftp in one ip address. And with another system with a different ip address using the client tftp ipaddr(server) and i try to get foo and it never connects and I tried a ping and they ping together just fine soo im just not sure if the tftp server is even on
View 2 Replies View RelatedI have created a /tftpboot directory and chmod it to 777. I have put an image 'uImage' on my Debian box under /tftpboot
In directory /etc/xinetd.d/ I have created file tftp:
Service tftp
{
disable = no
socket_type = dgram
protocol = udp
wait = yes
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This is very old topic but despite of trying out all possible solutions available on net and forums, I am not able to setup tftp server on my 2.6.32.11-99.FC12.i686.PAE. Is there something obvious missing out.
/etc/xinet.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer
# protocol. The tftp protocol is often used to boot diskless
# workstations, download configuration files to network-aware printers,
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I have been trying to install Ubuntu by network booting, I used tftp in Windows in another pc, and the target boots successfully but fails to download from any archive mirror, I'm not sure what goes wrong.
Well, I'm trying to do is, my friend's HP-mini fails to boot to Windows, and BIOS also gives error-messages, the thing is that my friend has important data on his netbook, it has only one drive, no cd-rom, and it doesn't support USB-booting, so I was thinking if I get to access an Ubuntu, I will be able to backup his data and install Windows, I would use anything that would let me copy files.
I am trying to setup a TFTP server and followed these instructions in setting up TFTP-HPA.
[URL]
I pretty much followed every step but commented out these two lines from the /etc/xinet.d/tftp.
# only_from = 172.31.0.240/28
# interface = 172.31.0.252
Do we really need the lines if I am allowing any machine to connect? And I have only 1 network card. This is acting as a dedicated TFTP server.I ask as I get an error on the get and put commands as below:
tftp> get xxx.txt
tftp: error received from server <File not found>
tftp: aborting
However although it gives an error it DOES GET the file.The put command however does NOT put the file. I have nobody / nogroup setup for the directory permissions as well.
tftp> put .vimrc
tftp: error received from server <File not found>
tftp: aborting
Can i set tftp server on RHEL 5.5 for Fedora Kickstart?
View 1 Replies View RelatedI have created a /tftpboot directory and chmod it to 777 I have put an image 'uImage' on my Debian box under /tftpboot In directory /etc/xinetd.d/ I have created file tftp:
Service tftp
{
disable = no
socket_type= dgram
protocol= udp
wait= yes
user= root
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I keep geting timeouts although uImage is on the debian box and it appears the tftp server is running.
I want a debian server running dhcp/tftp/pxe containing a tarball of a 'client' debian installation.I want a client that pxe boots, talks to the server, creates a ramdisk, untars the 'client' tarball to the ramdisk and boots into it. Once that's working, I want an NFS map back to the server for the users home directory.Can't find any really helpful howto's... wondering if anyone on here has done this?
View 2 Replies View RelatedI'm trying to install Debian on a Sun Ultra Enterprise 3000. See: [url]
So, I guess the cdrom is kaput. My next option is to net boot. I find the instructions here: [url]
A bit lacking. So, I want to ask if I am doing things right. Using this page and others from found via the Google, I have the following:
On Ubuntu 8.04 LTS, I ran:
Code:
to install rarpd. In /etc/hosts I have
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In /etc/ethers I have
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Then run
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So, I think that should set up the RARP server, but I don't know. Now for the TFTP server. I follow the instructions here: [url]
except for step 4 I use
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In /etc/inetd.conf I have
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So I put the files from:[url]
in /srv/tftp. Then I cd /srv/tftp, and run
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Then
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Ok, finially, from the OpenBoot OK propmt on the Sun machine, I type
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All I get is
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and it just keeps doing that....
I'm trying to setup a network boot server and I'm having an issue with tftp. In the /etc/xinetd.d/tftp file, I added the "-v" (verbose) option to the server arg line so that i could figure out what was happening. When i looked at the /var/log/messages log file, it let me know that permission was denied to /tftpboot/nbi_img.
So, in short, my problem is that tftp isn't working because it doesn't have permission to /tftpboot/nbi_img. I can't figure out why. I stumbled upon a site where the user figured out a temporary fix to this issue and what he did was disabled the xinetd service and typed the following command:/usr/sbin/in.tftpd -l -v -v -s /tftpboot/nbi_imgWhen I do this as well, it works! but only until I restart and then I have to do that again. Is there a way to be able to fix that for good?
Is there a trick to allowing a TFTP connection to create a file? I can successfully tftfp (from a cisco router) if I touch the file first, but otherwise, (/tftpboot has been chmoded to 777) I get [TFTP: error code 2 received - 20334]
View 7 Replies View RelatedServer: CentosClient: F11Remotely it doesn't work
Code:
tftp 10.0.0.2
tftp> status
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You are running tftpd as an on demand server i.e. it is only fired up when it is needed. Services run by xinetd are always run on demand. Have you actually tested if tftp on another system can access your PC i.e.
Code:
tftp your_pc_ip_address