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While running samba python tests with `coverage.py`, `make test` failed
to start ad_dc env since dns_update_cache stays empty.
Flush the file after write fix the issue.
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Without this we had an interesting race!
The messaging_dgm code caches connected datagram sockets based on the
destination pid for 1 second.
The fact that samba_dnsupdate constantly recreates its messaging
context (and the underlying datagram socket) means that we the winbindd
messaging context may get a stale connection. As a result sending any
message from winbindd back to samba_dnsupdate will result in
ECONNREFUSED.
That means the IRPC response from winbindd never reaches
samba_dnsupdate, which will then hit a timeout.
In turn samba_dnsupdate on the RODC times out.
This was a workaround for the problem, by having just one global
IRPC handle and thus just one messaging_dgm context.
The actual problem is solved a few commits before
("messages_dgm: Properly handle receiver re-initialization").
But we keep this as an performance optimization, which hopefully
means that the overall samba_dnsupdate is less likely to
timeout after the hardcoded 20 seconds.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Misc hanges needed to get make test TEST=samba.tests.dns &
samb.tests.dns_fowarder to run and pass under PY3
* socket.send needs bytes not string
* rec.dwTimeStamp expects int not float (in PY3 / operator
will give float results, for int use '//' instead)
* re.match using bytes needs a bytes search term
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
PY3 test was failing as param passed to update was str rather than bytes
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If there's a problem in get_credentials() (getting the machine account
Kerberos credentials), then we fallback to use_samba_tool (essentially
ignoring use-file). However, there's no need to do this, as use-file
shouldn't require Kerberos credentials.
This was making bootstrapping issues starting a testenv harder to debug.
Obviously, Kerberos is dependent on DNS functioning correctly, but
running dnsupdate was also dependent on having a working Kerberos KDC.
In my case, the testenv had a bad krb5.conf file, but the problem
appeared as resolv-wrapper errors (due to a missing RESOLV_WRAPPER_HOSTS
file, which should've been generated by dnsupdate).
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-With: Garming Sam <garming@catalyst.net.nz>
If you call samba_dnsupdate with a --configfile option, this wasn't
passed through to the samba-tool commands the script tries to run.
Normally, samba_dnsupdate would only be run on the DC itself, so it
shouldn't be a big deal, however, this may be a problem if you install
the samba database into a non-default location (i.e. not
/usr/local/samba).
This patch passes through the smb.conf file, if one was specified.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Since scavenging is implemented the samba_dnsupdate command always updates all
dns records required by the dc. This is not needed if dns zone scavenging
is not enabled.
This avoids the repeating TSIG error messages:
# samba_dnsupdate --option='dns zone scavenging = yes' 2>&1 | uniq -c
29 ; TSIG error with server: tsig verify failure
1 Failed update of 29 entries
# echo ${PIPESTATUS[0]}
29
# samba_dnsupdate --option='dns zone scavenging = no' 2>&1 | uniq -c
# echo ${PIPESTATUS[0]}
0
Note that this results in about 60 lines in the log file,
which triggered every 10 minutes ("dnsupdate:name interval=600" is the default).
This restores the behavior before 8ef42d4dab,
if "dns zone scavenging" is not switched on (which is still the default).
Avoiding the message from happening at all is subject for more debugging,
most likely they are caused by bugs in 'nsupdate -g' (from the bind package).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13605
Pair-programmed-with: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Björn Baumbach <bb@sernet.de>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Björn Baumbach <bb@sernet.de>
Autobuild-Date(master): Wed Sep 12 18:03:10 CEST 2018 on sn-devel-144
Now that scavenging is implemented, the DNS update tool needs to be changed so
that it always updates every name required by the DC. Otherwise, the records
might be scavenged.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=10812
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This uses the underlying function in kcc_utils.py which already has
tests.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This should eventually be removed, but for now this unblocks samba_dnsupdate operation
in existing domains that have lost the original Samba DC
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This ensures that nsupdate can use a namserver in /etc/resolv.conf that is a
cache or forwarder, rather than the AD DC directly.
This avoids a regression from forcing the nameservers to the
/etc/resolv.conf nameservers in
e85ef1dbfe
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
The samba_dnsupdate script is responsible to provision the DNS entries.
The private krb5.conf uses dns lookups to find the KDC to acquire a
Kerberos ticket. Obviously this will fail because currently we are are
in the process of adding the DNS entries for the KDC.
If we are inside of selftest we need to use the krb5.conf created by
selftest itself.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Tests are still flapping, because it claims it needs a cache rebuild.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Mar 28 00:04:54 CEST 2017 on sn-devel-144
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Garming Sam <garming@samba.org>
Autobuild-Date(master): Tue Nov 22 05:59:40 CET 2016 on sn-devel-144
This reverts a totally unnecessary change to samba_dnsupdate. The self test
environment does the correct things with NS records now.
This reverts commit af08cb2eee.
Signed-off-by: Richard Sharpe <rsharpe@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Jun 27 04:13:04 CEST 2016 on sn-devel-144
Add a --add-ns option to samba_dnsupdate and use that, but only when --use-file has been specified, to add an NS record to the file produced.
This allows us to make progress in the self tests and is an interim fix.
Signed-off-by: Richard Sharpe <rsharpe@samba.org>
Reviewed-by: Rowland Penny <repenny241155@gmail.com>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jun 21 00:51:02 CEST 2016 on sn-devel-144
This allows samba_dnsupdate to be tested without resolv_wrapper.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This avoids treating server errors identically to name-not-present status values
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This allows us to update the stub records as well as the zone itself.
Based on a proposed syntax by metze.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
By reducing the intendation this code is a little clearer
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This should help in deployements beyind NAT.
It will also help in testing.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This mode is more likely to work when we change hostname or IP
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
The doio_send() function of bind fails on a short write with sendmsg().
See https://bugzilla.redhat.com/show_bug.cgi?id=1250921
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
By reducing the intendation this code is a little clearer
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Nov 12 22:40:53 CET 2014 on sn-devel-104
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sat Sep 27 22:09:29 CEST 2014 on sn-devel-104
This will make the dns_update_list more flexible.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=9831
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We can't rely on the DNS delegation to be correct in the parent domain.
What we really want is to check if we already have registered ourself
as a NS record in our own domain.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=9831
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This way we can delete records which are not used anymore.
E.g. if the ip address changed.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=9831
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
