Hello David,
Am Samstag, 14. August 2021, 18:36:11 CEST schrieb David Vasek:
  Hello Günther,
 do you query the server from the same host in both cases? If so, may I
 ask what's the contents of /etc/resolv.conf and what's your OS? 
yes this is from the same host, but all other host have the same problem with
"host", on this servers I don't have a "khost"
The OS is oracle Linux 8.4
The resolv.conf
cat /etc/resolv.conf
# Generated by NetworkManager
search 4gjn.com.lan 
4gjn.com
nameserver 127.0.0.1
nameserver 192.168.100.221
nameserver 217.196.154.211
  > I am a newbie
 > I have a problem with KNOT or I don't understand Knot?
 >
 > What do I have to configure so that knot also dissolves my internal
 > zones?
 > My config for the zones
 > # Internal zone
 >
 >   - domain: 4gjn.com.lan
 >
 > # notify: secondary
 >
 >     file: "/var/lib/knot/zones/4gjn.com.lan.zone"
 >     dnssec-signing: off
 >     zonefile-sync: -1
 >     zonefile-load: difference
 >     journal-content: changes
 >
 > # master: primary1
 > # acl: update_acl
 >
 >     # Master zone
 >
 >   - domain: 100.168.192.in-addr.arpa
 >
 > # notify: secondary
 >
 >     file: "/var/lib/knot/zones/100.168.192.in-addr.arpa.zone"
 >     zonefile-sync: -1
 >     zonefile-load: difference
 >     journal-content: changes
 >     dnssec-signing: off
 >
 > # master: primary
 > # acl: acl_secondary
 > with khost I have this answer on the knot-server
 > khost 192.168.100.204
 > 204.100.168.192.in-addr.arpa. points to ipa.4gjn.com.lan.
 > khost ipa.4gjn.com.lan
 > ipa.4gjn.com.lan. has IPv4 address 192.168.100.204
 >
 > But with host do I get the answer back?
 >
 > host 192.168.100.204
 > Host 204.100.168.192.in-addr.arpa. not found: 3 (NXDOMAIN)
 > host ipa.4gjn.com.lan
 > Host ipa.4gjn.com.lan not found: 3 (NXDOMAIN)
 >
 > is that correct or do I have an error?
 >
 > ping seems to work
 > ping ipa.4gjn.com.lan
 > PING ipa.4gjn.com.lan (192.168.100.204) 56 (84) bytes of data.
 >
 > Thanks for an answer, 
--
mit freundlichen Grüßen / best regards
  Günther J. Niederwimmer