[mythtv-users] NTP without network connection problems

Nigel Metheringham Nigel.Metheringham at dev.intechnology.co.uk
Wed Mar 23 14:39:21 UTC 2005

On Wed, 2005-03-23 at 09:29 -0500, Craig Thomas wrote:
> I enabled NTP to keep my time up to date.  When I have a network
> connection, the PC boots fine.  However, when a network connection is
> not present, the machine hangs on boot right after it tries start NTP.
> I do not currently have a network connection by my TV (I will be
> running cable soon), and this also concerns me in case my internet
> connection goes out.  If I remove NTP, it boots fine with and without
> network.  Has anyone run into this before?

Thats pretty normal - the main problem tends to be that you are
generating a batch of DNS requests, each of which has to time out, and
maybe also a batch of connect attempts, which also have to time out.

The hang should be of the order of a minute or so.

Specifying your NTP targets as IP addresses will prevent the DNS
timeouts (which tend to be the longest).

NTP is not really suitable for (booting) hosts with intermittent


[ Nigel Metheringham           Nigel.Metheringham at InTechnology.co.uk ]
[ - Comments in this message are my own and not ITO opinion/policy - ]

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