Created attachment 863974 [details]
named. conf

I have samba-ad-dc installed and running on a raspberry pi400 with named on the
same system managing only the samba domain (samdom.pce23.net)
I connected two windows10 pro pc to this samba domain and now when a Windows PC
starts or wake up there is a core dump of named. The windows PCs of course loss
internet access and I need to start named via systemctl.

Here the core 
Jan 10 09:35:53 rasp.samdom.pce23.net named[1035]: client @0xffff91070168
192.168.2.100#61871: update 'samdom.pce23.net/IN' denied
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: client @0xffff8fa71d68
192.168.2.100#52614: update '2.168.192.in-addr.arpa/IN' denied
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: name.c:664: REQUIRE(((name1)
!= ((void *)0) && ((const isc__magic_t *)(name1))->magic == ((('D') << 24 |
('N') << 16 | ('S') << 8 | ('n'))))) failed, back trace
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /usr/sbin/named(+0x1faa4)
[0xaaaae6d1faa4]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(isc_assertion_failed+0x18) [0xffffb017a7fc]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libdns-9.18.10.so(dns_name_equal+0x19c) [0xffffaffa231c]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/usr/lib64/samba/bind9/dlz_bind9_18.so(dlz_subrdataset+0x1b8) [0xffffaeea6b9c]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /usr/sbin/named(+0x1df64)
[0xaaaae6d1df64]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libdns-9.18.10.so(+0x184108) [0xffffb0094108]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libdns-9.18.10.so(+0x53a40) [0xffffaff63a40]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libns-9.18.10.so(+0x27384) [0xffffafec7384]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libns-9.18.10.so(+0x27db4) [0xffffafec7db4]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libns-9.18.10.so(+0x27a6c) [0xffffafec7a6c]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libns-9.18.10.so(+0x27bdc) [0xffffafec7bdc]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libns-9.18.10.so(+0x317a8) [0xffffafed17a8]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(isc_task_run+0x110) [0xffffb01a4bc0]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(+0x2d4f0) [0xffffb016d4f0]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(+0x2d940) [0xffffb016d940]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(+0x2db64) [0xffffb016db64]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /lib64/libuv.so.1(+0xa374)
[0xffffafa6a374]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /lib64/libuv.so.1(+0x25ac4)
[0xffffafa85ac4]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libuv.so.1(uv_run+0x57c) [0xffffafa6fefc]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(+0x2e02c) [0xffffb016e02c]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]:
/lib64/libisc-9.18.10.so(isc__trampoline_run+0x20) [0xffffb01a8ae0]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /lib64/libc.so.6(+0x84ee8)
[0xffffaf6c4ee8]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: /lib64/libc.so.6(+0xf0bdc)
[0xffffaf730bdc]
Jan 10 09:35:54 rasp.samdom.pce23.net named[1035]: exiting (due to assertion
failure)
Jan 10 09:35:54 rasp.samdom.pce23.net systemd[1]: named.service: Main process
exited, code=dumped, status=6/ABRT
Jan 10 09:35:54 rasp.samdom.pce23.net systemd[1]: named.service: Failed with
result 'core-dump'.


After restart of named the Windows PC can use named without problem to access
internet until a restart or wake upp of these PCs.

Here the query for the samba domain zone
rasp:~ # samba-tool dns query 192.168.4.91 samdom.pce23.net @ ALL -U
Administrator
Password for [SAMDOM\Administrator]:
  Name=, Records=3, Children=0
    SOA: serial=9, refresh=900, retry=600, expire=86400, minttl=3600,
ns=rasp.samdom.pce23.net., email=hostmaster.samdom.pce23.net. (flags=600000f0,
serial=9, ttl=3600)
    NS: rasp.samdom.pce23.net. (flags=600000f0, serial=7, ttl=900)
    A: 192.168.4.91 (flags=600000f0, serial=7, ttl=900)
  Name=_msdcs, Records=0, Children=0
  Name=_sites, Records=0, Children=1
  Name=_tcp, Records=0, Children=4
  Name=_udp, Records=0, Children=2
  Name=DESKTOP-GAU, Records=1, Children=0
    A: 192.168.2.100 (flags=f0, serial=9, ttl=1200)
  Name=DESKTOP-RC7R9GG, Records=1, Children=0
    A: 192.168.3.100 (flags=f0, serial=9, ttl=1200)
  Name=DomainDnsZones, Records=0, Children=2
  Name=ForestDnsZones, Records=0, Children=2
  Name=rasp, Records=1, Children=0
    A: 192.168.4.91 (flags=f0, serial=1, ttl=900)
  Name=vm, Records=1, Children=0
    A: 192.168.4.92 (flags=f0, serial=3, ttl=900)


To solve a problem with samba_dnsupdate I added this line in sysconfig
echo 'KRB5RCACHETYPE="none"' >> /etc/sysconfig/named

I'll atrtach my named.conf stripped from all comments
Let me known if you need more information
Regards
Philippe