Hey,
Recently I discovered that the nameservers of two out the three IPA
masters (replicas) are
not responding with up-to-date information.
Our setup has three masters. Each is configured as nameserver. Most of
the time I use
one as the main master when I modify DNS entries. We also have a DHCP
server that
sends updates to that "main" master.
What I now discovered is that updates are not available when clients use
the two
other masters.
On all three masters the DNS record is present when I use local
ldapsearch [1]. But with dig
the record is only present on one master.
If I restart the nameserver it then has all records available.
What would be the best method to find out what is wrong?
BTW. There are two things that changed recently. I mention this in case
it rings a bell.
1. one master was re-installed with CentOS 8 Stream. An other CentOS8
master was added
a few weeks ago.
2. our nameservers don't have connection to the Internet any more. So,
root servers cannot
be found.
[1] by local ldapsearch I mean doing a command like this:
ldapsearch -H ldapi://%2fvar%2frun%2f...
--
Kees
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