[K12OSN] tftp problem on client after IP change on server

[Eric Harrison]

On Tue, 14 Mar 2006 rmcdaniel at indata.us wrote:

> When I change the IP address of my LTSP server, single NIC, and boot a
> client, the client hangs at TFTP....
>
> I have checked the following files to make sure that the IP address is
> updated:
>
>    /etc/exports
>    /etc/hosts.allow
>    /etc/rc.d/init.d/nat
>    /etc/hosts
>    /etc/dhcpd.conf
>    /opt/ltsp/i386/etc/lts.conf
>    /opt/ltsp/templates/k12linux/hosts-update.sh
>    /opt/ltsp/templates/k12linux/setup-update.sh
>
> Is there any where else that I need to check????

A few ideas off the top of my head:

* Since you have a single NIC, perhaps firewall rules are biting you?
   Check /etc/sysconfig/iptables

* is TFTP turned on?

 	  # chkconfig --list tftp

   if it says it is off, run:

      # chkconfig tftp on
      # service xinetd reload

* Are the TFTP and DHCP servers now seperate? The clients will try to TFTP
   their boot image from the DCHP server unless a "next-server" is specified
   in dhcpd.conf

-Eric