Joseph, I can't spot the problem either. And the dhcp3-server package in 11.10 is new to me (dhcp3-server - ISC DHCP server (transitional package)). But since your error references not being able to process your /etc/ltsp/dhcpd.conf file correctly, consider 1) backing it up and regenerating it 2) checking it's read permissions (ls -l ) 3) ensure that it's the correct config file (correct name/correct location) I'll try to remember to check your dhcpd.conf file against mine when I get to work today. I think it's unrelated to your dhcp server issue, but make sure you work out your upstream device (eth0) which might require purging network-manager. And dont' forget to run sudo ltsp-update-sshkeys since you changed your nics. but maybe you knew all that... -peter <div class="gmail_quote">On Sat, Sep 3, 2011 at 11:45 AM, David Groos <<a href="mailto:djgroos@gmail.com" target="_blank">djgroos@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hey Joseph, Some things that come to mind... <ol><li>Are you using "Network Manager"? it seems that that has a different way of setting up ip addresses. For example, I was just trying to set up a vpn client on my home ubuntu so I could access our district servers. I thought I had everything correct but couldn't make it work with editing the appropriate config files. So then I tried using System-->Preference-->Network Connections and got it set up and it worked BUT it also ignored my /etc/network/interfaces config file! So then I had to put further info into this application to get my internet and static ip back. Lesson here, read up all you can about the issues with Network Manager. I know that I ended up removing it while setting up the school ltsp server 15 months ago. So, I'm saying that some other config file besides /etc/network/interfaces MIGHT be affecting your setup. Sorry I don't know more about this. </li><li>A common mistake for me is choosing the netmask--I've never really learned the diff between type A and type B/C etc networks, I don't remember when I should set this to 255.255.255.0 or 255.255.0.0. so when nothing else works I try one then the other. I seem to remember that a 10.x.x.x would have the latter? You probably know all this but I thought I would share it just in case. </li><li>When you type the command, "ifconfig" into the terminal, what do you get? This give some critical info as to what's happening on each of your ports. It would be useful (perhaps for myself or someone who knows more than I) for you to post the results of ifconfig here.</li></ol>Good Luck! When it finally works it's sweet! David<div><div></div><div> <div class="gmail_quote"> On Fri, Sep 2, 2011 at 11:58 PM, Joseph Bishay <<a href="mailto:joseph.bishay@gmail.com" target="_blank">joseph.bishay@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello, Thanks for your feedback -- I tried mimicking your setting but I still receive the same error. I also did make a point to restart every time I made changes to the configuration files but it also made no difference. Joseph <div><div></div><div> On Fri, Sep 2, 2011 at 10:32 AM, David Groos <<a href="mailto:djgroos@gmail.com" target="_blank">djgroos@gmail.com</a>> wrote: > Hi Joseph, > I was looking at your /etc/network/interface file and noticed that all you > have for eth0 is the: "auto eth0" and it doesn't tell how it should connect > such as via dhcp: > auto eth0 > iface eth0 inet dhcp > > or take on a static ip as I do on my server such as: > auto eth0 > iface eth0 inet static > address 10.51.0.199 > netmask 255.255.0.0 > gateway 10.51.0.1 > > For the connection to the switch/thin/fat clients I use these lines: > auto eth1 > iface eth1 inet static > address 192.168.0.1 > netmask 255.255.255.0 > up iptables-restore < /etc/ltsp/nat > > You didn't mention that you rebooted the server after adjusting the > 70-persistent-net.rules? > > Good luck! > David > > On Thu, Sep 1, 2011 at 11:07 PM, Joseph Bishay <<a href="mailto:joseph.bishay@gmail.com" target="_blank">joseph.bishay@gmail.com</a>> > wrote: >> >> Hello, >> >> I hope everyone is doing well. >> >> I have a cleanly installed Edubuntu 11.04 server in the classic 2-NIC >> format. I realized after installation, but before I tried to connect >> any thin clients, that it was better to reverse the NICs so the Intel >> one was running the thin clients. I was able to successfully do so >> via modification of /etc/udev/rules.d/70-persistent-net.rules and >> reversing the two lines. >> >> Now I wanted to try to book a thin client. Took a switch and plugged >> the LTSP NIC from the server and a thin client into the switch. And >> the thin client fails to PXE boot -- can't find the DHCPD server. >> >> Ideally I'd like eth0 to be the Internet NIC and eth1 to be the LTSP >> NIC on the 10.x.x.x. subnet. >> >> So I hunted around and find that the dhcpd3 service is not running. >> Every time I try to run it on the server I get: >> >> sudo service isc-dhcp-server start: >> * Starting ISC DHCP server dhcpd >> * check syslog for diagnostics. [fail] >> >> Checking syslog I get: >> >> eduLTSP dhcpd: Wrote 0 leases to leases file. >> eduLTSP dhcpd: >> eduLTSP dhcpd: No subnet declaration for eth1 (no IPv4 addresses). >> eduLTSP dhcpd: ** Ignoring requests on eth1. If this is not what >> eduLTSP dhcpd: you want, please write a subnet declaration >> eduLTSP dhcpd: in your dhcpd.conf file for the network segment >> eduLTSP dhcpd: to which interface eth1 is attached. ** >> eduLTSP dhcpd: >> eduLTSP dhcpd: >> eduLTSP dhcpd: Not configured to listen on any interfaces! >> >> I've tried to search online and tried a bunch of steps but been unable >> to resolve this! Here are the relevant configuration files: >> --- >> jbishay@i7-eduLTSP:~$ cat /etc/networks >> # symbolic names for networks, see networks(5) for more information >> link-local 169.254.0.0 >> --- >> jbishay@i7-eduLTSP:/etc/network$ cat interfaces >> auto lo >> iface lo inet loopback >> >> auto eth0 >> >> #auto eth1 >> >> iface eth1 inet static >> # address 192.168.0.254 >> address 10.0.0.254 >> netmask 255.255.255.0 >> broadcast 10.0.0.255 >> --- >> jbishay@i7-eduLTSP:/etc/ltsp$ cat dhcpd.conf >> # >> # Default LTSP dhcpd.conf config file. >> >> authoritative; >> >> subnet 10.0.0.0 netmask 255.255.255.0 { >> range 10.0.0.1 10.0.0.250; >> option domain-name "<a href="http://edultsp.stgr.org" target="_blank">edultsp.stgr.org</a>"; >> option domain-name-servers 192.168.1.1; >> option broadcast-address 10.0.0.255; >> option routers 192.168.1.1; >> # next-server 192.168.0.1; >> # get-lease-hostnames true; >> option subnet-mask 255.255.255.0; >> option root-path "/opt/ltsp/i386"; >> if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" { >> filename "/ltsp/i386/pxelinux.0"; >> } else { >> filename "/ltsp/i386/nbi.img"; >> } >> } >> --- >> jbishay@i7-eduLTSP:/etc/default$ cat isc-dhcp-server >> # Defaults for dhcp initscript >> # sourced by /etc/init.d/dhcp >> # installed at /etc/default/isc-dhcp-server by the maintainer scripts >> # >> # This is a POSIX shell fragment >> # >> # On what interfaces should the DHCP server (dhcpd) serve DHCP requests? >> # Separate multiple interfaces with spaces, e.g. "eth0 eth1". >> INTERFACES="eth1" >> --- >> >> I believe that is all the relevant files-- if I missed something >> please just tell me and I'll post it here! >> >> So I'm at a loss -- what do you recommend? >> >> Thanks! >> Joseph >> >> -- >> edubuntu-users mailing list >> <a href="mailto:edubuntu-users@lists.ubuntu.com" target="_blank">edubuntu-users@lists.ubuntu.com</a> >> Modify settings or unsubscribe at: >> <a href="https://lists.ubuntu.com/mailman/listinfo/edubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/edubuntu-users</a> > > </div></div></blockquote></div> </div></div> -- edubuntu-users mailing list <a href="mailto:edubuntu-users@lists.ubuntu.com" target="_blank">edubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/edubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/edubuntu-users</a> </blockquote></div>