[syslinux] tftpd: read(ack): Connection refused

Luciano Miguel Ferreira Rocha strange at nsk.no-ip.org
Wed Mar 29 11:05:15 PST 2006

On Thu, Mar 30, 2006 at 05:55:55AM +1100, Kosolapov Dmitry wrote:
> Luciano Miguel Ferreira Rocha wrote:
> >On Thu, Mar 30, 2006 at 04:42:38AM +1100, Kosolapov Dmitry wrote:
> >>Luciano Miguel Ferreira Rocha wrote:
> >>>On Thu, Mar 30, 2006 at 03:53:35AM +1100, Kosolapov Dmitry wrote:
> >>>>I've checked from the 4-th subnet. No changes. TFTPD refuses remote 
> >>>>connctions (ack requests). Please help me.
> >>>Run /etc/init.d/iptables stop and try again.
> >>>
> >>>If that fixes it, you need to allow tftp traffic in your firewall. If it
> >>>doesn't, try fetching the file via a tftp client directly on the server
> >>>(tftp localhost) and on a machine on the same subnet.
> >>>
> >>>
> >>That didn't help to it. I've tried to download the file within subnet 
> >>server being in. Remote connections are refused. But at the server I can 
> >>download files from /tftpboot (both and (my 
> >>server's etch0 interface)).
> >
> >Did you run: /etc/init.d/iptables stop
> >
> >I suspect it's firewall related.
> >
> Yes, "service iptables stop" was done.

Next step:
   tcpdump -n -i eth0 -vvv port tftp
   strace -f -p `pidof in.tftpd || pidof xinetd`

log the output from those commands while requesting the file from
another server.

The problem could be in your gateway.


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