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Re: A question about some network services



On Tue, Apr 02, 2002 at 11:49:53AM -0700, Will Aoki wrote:
> On Tue, Apr 02, 2002 at 10:23:21AM -0800, Anne Carasik wrote:
> > On Tue, Apr 02, 2002 at 07:45:21PM +0200, eim wrote:
> > > A question about some network services
> > > ======================================
> > > 
> > > Hallo Debian folks,
> > > 
> > > By default, on my debian boxes, I disable this network
> > > services which are enabled automaticly during a fresh
> > > Debian stable aka "potato" installtion:
> > > 
> > > 	* daytime
> > > 	* time
> > > 	* discard
> > > 
> > > All this services are stareted from inet.d / xinet.d
> > > so I can easily disable them via "update-inetd", 
> > > so my only question is: 
> > > 
> > > 	Why are this services enabled by default and
> > > 	for 'what' exactly do we need them ?
> > 
> > Well, daytime spits out the time of day, time is for NTP,
> > and I'm not sure what discard is used for.
> 
> 'time' is RFC 868, a pre-NTP time synchronization protocol. It just
> sends the time as a 32-bit int, where:
> 
> "The time is the number of seconds since 00:00 (midnight) 1 January 1900
>  GMT, such that the time 1 is 12:00:01 am on 1 January 1900 GMT; this
>  base will serve until the year 2036."
> 
> I think it sends it big-endian, but I'm not sure.

Is it used by the old rdate tools?

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