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Martin Burnicki wrote:> BlackLists schrieb:
"orphan" and "pool" are only supported with ntpd 4.2.6 and newer.
If the OP uses an older version this won't work.
To me it seems the problem they are having,
was fixed about four years ago with the introduction of restrict source
in 4.2.7p22.
Sure if they want to use ntp software before 2010,
that they have issues with, and they don't want to use the latest,
then I guess they could continue to suffer at their own discretion.
If your point was I didn't tell them any of that,
point taken: Development 4.2.7p438 2014/04/01
<http://www.ntp.org/downloads.html> <http://archive.ntp.org/ntp4/>
<http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p438.tar.gz>
Although if you expect me to explain in every post
that thousands of issues / bugs have been fixed,
any many features added, over countless newer versions
since a few years to decades ago;
Might I also expect the person asking questions to mention
the version they are using, or I may assume they have
already tried the latest version?
From my own experience I can say that after upgrades you often have new
features available, regardless if you need or want them, or not, but
also often things don't work anymore as they used to do. This is a
general experience, not specific to NTP.
From our own customers I know that many of them keep using e.g.
existing/older Linux distros, since basically they work as expected, and
they don't always upgrade the whole distro just because a new version is
available. And often they still use the version of a program that has
been shipped with the distro because this is under control of the
package management. In other cases they just can#t upgrade the whole
system since other software relies on specific program versions.
Of course, if a system administrator stumbles across a specific bug then
I'd also expect him to try a newer version of the software first, if
available, and see if the bug has already been fixed. On the other hand,
problems due to misunderstanding of the underlying concepts can't be
fixed with a software update.
Also, for non-programmers it's not to easy to build an NTP binary
package from a tarball. For example, even if you have the openssl
libraries installed on your Linux machine you will end up with ntpd
built silently without crypto support, if you don't have the openssl
*header* files installed in addition.
So I can understand why many people just try to keep working with the
latest binary package available for their distro.
Many people asking here for advice are new to NTP. Often they are not
even familiar with the way NTP is supposed to work, and they get great
help from the experienced NTP users here in the newsgroup or on the
questions mailing list, including you.
Often one can help them easily by telling them which lines to add into
their config file to get things working, even if they are not using the
very last recent version of the software.
I'm not trying to bother someone here on the list, but for example the
"pool" and "orphan" stuff are not bug fixes but new
features/enhancements introduced in a certain version of the NTP
package. If you just tell newcomers, "Try pool and orphan if your run
NTP 4.2.6 or newer" they know this will only work if they run one of
these versions, and if they are actually using an older version they can
decide if they want to try to upgrade, or try to find a different
solution for the existing version, and will save them quite some
frustration they'd get if they tried to use this with older versions of
ntpd.
Martin
--
Martin Burnicki
Meinberg Funkuhren
Bad Pyrmont
Germany
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