ntp problems
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From: unruh on 19 Apr 2010 12:54 On 2010-04-19, Bonno Bloksma <bbloksma(a)xs4all.nl> wrote: > Hi, > > Using Debian Lenny, default install of ntp on several servers. > The only change applied on most servers is to add a line to a nearby startum 2 server. > Somehow is looks as if the ntp server is running ok but clients cannot connect. > > Can I assume rdate is a proper ntp client? No. rdate has absolutely nothing to do with ntp. It is an ancient time deamon/proceedure. > And if rdate -p 127.0.0.1 fails that there is a problem? No, rdate has nothing to do with ntp. It does NOT use the ntp protocol. YOu could try ntpdate.
From: Rick Jones on 19 Apr 2010 14:37 Bonno Bloksma <bbloksma(a)xs4all.nl> wrote: > On a HP switch there is the option TimeP or SNTP. Eventhough TimeP > is still the default it seems I then need to use SNTP to talk to a > NTP server. Yes. You should use SNTP rather than TimeP > If I have other hardware that only understands RFC868, can I service > them as well, is there a converter available I can install on my > Debian Lenny servers? You could install/enable xinted - not sure if it has a date/time built-in service like most inetds or not but that should become obvious in short order. I wouldn't count on "great" time synchronization that way though. rick jones -- oxymoron n, Hummer H2 with California Save Our Coasts and Oceans plates these opinions are mine, all mine; HP might not want them anyway... :) feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...
From: unruh on 19 Apr 2010 16:00 On 2010-04-19, Rick Jones <rick.jones2(a)hp.com> wrote: > Bonno Bloksma <bbloksma(a)xs4all.nl> wrote: >> On a HP switch there is the option TimeP or SNTP. Eventhough TimeP >> is still the default it seems I then need to use SNTP to talk to a >> NTP server. > > Yes. You should use SNTP rather than TimeP Or ntpd, or chrony, both of which will discipline your local time to better than a ms. sntp is a cutdown implimentation of ntp for use for final leaves in a tree ( ie it shoulc not be used as a server for anything else). Your switch may well be something you use to then discipline other clocks on your network. > >> If I have other hardware that only understands RFC868, can I service >> them as well, is there a converter available I can install on my >> Debian Lenny servers? > > You could install/enable xinted - not sure if it has a date/time > built-in service like most inetds or not but that should become ??? What has xinetd to do with time? Or inetd? > obvious in short order. I wouldn't count on "great" time > synchronization that way though. > > rick jones
From: Rick Jones on 19 Apr 2010 16:12 unruh <unruh(a)wormhole.physics.ubc.ca> wrote: > On 2010-04-19, Rick Jones <rick.jones2(a)hp.com> wrote: > > Bonno Bloksma <bbloksma(a)xs4all.nl> wrote: > >> On a HP switch there is the option TimeP or SNTP. Eventhough > >> TimeP is still the default it seems I then need to use SNTP to > >> talk to a NTP server. > > > > Yes. You should use SNTP rather than TimeP > Or ntpd, or chrony, both of which will discipline your local time to > better than a ms. Have you ported chrony to HP ProCurve switches?-) rick jones -- I don't interest myself in "why". I think more often in terms of "when", sometimes "where"; always "how much." - Joubert these opinions are mine, all mine; HP might not want them anyway... :) feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...
From: unruh on 19 Apr 2010 17:06
On 2010-04-19, Rick Jones <rick.jones2(a)hp.com> wrote: > unruh <unruh(a)wormhole.physics.ubc.ca> wrote: >> On 2010-04-19, Rick Jones <rick.jones2(a)hp.com> wrote: >> > Bonno Bloksma <bbloksma(a)xs4all.nl> wrote: >> >> On a HP switch there is the option TimeP or SNTP. Eventhough >> >> TimeP is still the default it seems I then need to use SNTP to >> >> talk to a NTP server. >> > >> > Yes. You should use SNTP rather than TimeP > >> Or ntpd, or chrony, both of which will discipline your local time to >> better than a ms. > > Have you ported chrony to HP ProCurve switches?-) What operating system do they run? If it is linux or bsd then it might well work. If not, then no. > > rick jones |