[ntp:questions] My ntpd stopped working

Hal Murray hal-usenet at ip-64-139-1-69.sjc.megapath.net
Wed Sep 12 15:15:38 UTC 2007


>I recently (yesterday) joined the ntp pool and at first everything
>seemed to go fine. My score went upwards and I started getting 'real'
>traffic. However, at some point something stopped working, my scope
>went on a downhill slope and I am not able to determine what went
>wrong/changed. Hence this posting to the group.
...

>My network is simple enough; I have a DSL modem that connects to my
>linux server. The external IP is 90.184.3.208, the internal (linux box
><-> DSL modem) is 192.168.1.2. I have a SW firewall on the linux box
>(iptables) that allows udp traffic on port 123.
...
>As I believe the restrict flags to be OK and those are the only
>difference between the two outputs I am at a loss now. I realise that
>being able to run against internal interfaces but not against the
>external one implicates some kind of filtering/firewalling, but I
>really really changed nothing since it worked yesterday.

Is your NAT box (router/modem) setup to forward packets to
UDP port 123 to your Linux box?

-- 
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