name server ns1.domain.com is down. pinging is saying ping request could not find host. it's happening by itself. I didn't change any config or something. today I only added 40110:40210 ports from firewall section for passive ftp ports. bind9 is running and seems like healty. I could't solve this? here is bind9 logs after restart; Code: Feb 16 02:06:48 xxxxxx systemd[1]: Started BIND Domain Name Server. Feb 16 02:06:48 xxxxxx named[13067]: starting BIND 9.16.1-Ubuntu (Stable Release) <id:d497c32> Feb 16 02:06:48 xxxxxx named[13067]: running on Linux x86_64 5.4.0-99-generic #112-Ubuntu SMP Thu Feb 3 13:50:55 UTC 2022 Feb 16 02:06:48 xxxxxx named[13067]: built with '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=/usr/include' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu' '--runstatedir=/run' '--disable-maintainer-mode' '--disable-dependency-tracking' '--libdir=/usr/lib/x86_64-linux-gnu' '--sysconfdir=/etc/bind' '--with-python=python3' '--localstatedir=/' '--enable-threads' '--enable-largefile' '--with-libtool' '--enable-shared' '--enable-static' '--with-gost=no' '--with-openssl=/usr' '--with-gssapi=/usr' '--with-libidn2' '--with-json-c' '--with-lmdb=/usr' '--with-gnu-ld' '--with-maxminddb' '--with-atf=no' '--enable-ipv6' '--enable-rrl' '--enable-filter-aaaa' '--disable-native-pkcs11' '--disable-isc-spnego' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/bind9-e4rzcc/bind9-9.16.1=. -fstack-protector-strong -Wformat -Werror=format-security -fno-strict-aliasing -fno-delete-null-pointer-checks -DNO_VERSION_DATE -DDIG_SIGCHASE' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' Feb 16 02:06:48 xxxxxx named[13067]: running as: named -f -u bind Feb 16 02:06:48 xxxxxx named[13067]: compiled by GCC 9.3.0 Feb 16 02:06:48 xxxxxx named[13067]: compiled with OpenSSL version: OpenSSL 1.1.1f 31 Mar 2020 Feb 16 02:06:48 xxxxxx named[13067]: linked to OpenSSL version: OpenSSL 1.1.1f 31 Mar 2020 Feb 16 02:06:48 xxxxxx named[13067]: compiled with libxml2 version: 2.9.10 Feb 16 02:06:48 xxxxxx named[13067]: linked to libxml2 version: 20910 Feb 16 02:06:48 xxxxxx named[13067]: compiled with json-c version: 0.13.1 Feb 16 02:06:48 xxxxxx named[13067]: linked to json-c version: 0.13.1 Feb 16 02:06:48 xxxxxx named[13067]: compiled with zlib version: 1.2.11 Feb 16 02:06:48 xxxxxx named[13067]: linked to zlib version: 1.2.11 Feb 16 02:06:48 xxxxxx named[13067]: ---------------------------------------------------- Feb 16 02:06:48 xxxxxx named[13067]: BIND 9 is maintained by Internet Systems Consortium, Feb 16 02:06:48 xxxxxx named[13067]: Inc. (ISC), a non-profit 501(c)(3) public-benefit Feb 16 02:06:48 xxxxxx named[13067]: corporation. Support and training for BIND 9 are Feb 16 02:06:48 xxxxxx named[13067]: available at https://www.isc.org/support Feb 16 02:06:48 xxxxxx named[13067]: ---------------------------------------------------- Feb 16 02:06:48 xxxxxx named[13067]: adjusted limit on open files from 524288 to 1048576 Feb 16 02:06:48 xxxxxx named[13067]: found 1 CPU, using 1 worker thread Feb 16 02:06:48 xxxxxx named[13067]: using 1 UDP listener per interface Feb 16 02:06:48 xxxxxx named[13067]: using up to 21000 sockets Feb 16 02:06:48 xxxxxx named[13067]: loading configuration from '/etc/bind/named.conf' Feb 16 02:06:48 xxxxxx named[13067]: /etc/bind/named.conf.options:21: option 'dnssec-enable' is obsolete and should be removed Feb 16 02:06:48 xxxxxx named[13067]: reading built-in trust anchors from file '/etc/bind/bind.keys' Feb 16 02:06:48 xxxxxx named[13067]: looking for GeoIP2 databases in '/usr/share/GeoIP' Feb 16 02:06:48 xxxxxx named[13067]: using default UDP/IPv4 port range: [32768, 60999] Feb 16 02:06:48 xxxxxx named[13067]: using default UDP/IPv6 port range: [32768, 60999] Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv4 interface lo, 127.0.0.1#53 Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv4 interface ens160, 80.211.143.65#53 Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv4 interface tun0, 10.8.0.1#53 Feb 16 02:06:48 xxxxxx named[13067]: IPv6 socket API is incomplete; explicitly binding to each IPv6 address separately Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv6 interface lo, ::1#53 Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv6 interface ens160, fe80::250:56ff:fea9:4d39%2#53 Feb 16 02:06:48 xxxxxx named[13067]: listening on IPv6 interface tun0, fe80::a5af:1003:1b9f:2c36%5#53 Feb 16 02:06:48 xxxxxx named[13067]: unable to set effective uid to 0: Operation not permitted Feb 16 02:06:48 xxxxxx named[13067]: generating session key for dynamic DNS Feb 16 02:06:48 xxxxxx named[13067]: unable to set effective uid to 0: Operation not permitted Feb 16 02:06:48 xxxxxx named[13067]: sizing zone task pool based on 8 zones Feb 16 02:06:48 xxxxxx named[13067]: none:100: 'max-cache-size 90%' - setting to 879MB (out of 976MB) Feb 16 02:06:48 xxxxxx named[13067]: set up managed keys zone for view _default, file 'managed-keys.bind' Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 10.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 16.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 17.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 18.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 19.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 20.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 21.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 22.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 23.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 24.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 25.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 26.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 27.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 28.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 29.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 30.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 31.172.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 168.192.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 64.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 65.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 66.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 67.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 68.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 69.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 70.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 71.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 72.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 73.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 74.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 75.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 76.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 77.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 78.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 79.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 80.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 81.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 82.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 83.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 84.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 85.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 86.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 87.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 88.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 89.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 90.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 91.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 92.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 93.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 94.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 95.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 96.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 97.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 98.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 99.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 100.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 101.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 102.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 103.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 104.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 105.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 106.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 107.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 108.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 109.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 110.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 111.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 112.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 113.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 114.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 115.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 116.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 117.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 118.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 119.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 120.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 121.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 122.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 123.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 124.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 125.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 126.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 127.100.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 254.169.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 2.0.192.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 100.51.198.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 113.0.203.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 255.255.255.255.IN-ADDR.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: D.F.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 8.E.F.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 9.E.F.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: A.E.F.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: B.E.F.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: 8.B.D.0.1.0.0.2.IP6.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: EMPTY.AS112.ARPA Feb 16 02:06:48 xxxxxx named[13067]: automatic empty zone: HOME.ARPA Feb 16 02:06:48 xxxxxx named[13067]: none:100: 'max-cache-size 90%' - setting to 879MB (out of 976MB) Feb 16 02:06:48 xxxxxx named[13067]: configuring command channel from '/etc/bind/rndc.key' Feb 16 02:06:48 xxxxxx named[13067]: command channel listening on 127.0.0.1#953 Feb 16 02:06:48 xxxxxx named[13067]: configuring command channel from '/etc/bind/rndc.key' Feb 16 02:06:48 xxxxxx named[13067]: command channel listening on ::1#953 Feb 16 02:06:48 xxxxxx named[13067]: managed-keys-zone: loaded serial 3 Feb 16 02:06:48 xxxxxx named[13067]: zone 0.in-addr.arpa/IN: loaded serial 1 Feb 16 02:06:48 xxxxxx named[13067]: zone 127.in-addr.arpa/IN: loaded serial 1 Feb 16 02:06:48 xxxxxx named[13067]: zone 255.in-addr.arpa/IN: loaded serial 1 Feb 16 02:06:48 xxxxxx named[13067]: zone domain1.com/IN: loaded serial 2022021603 (DNSSEC signed) Feb 16 02:06:48 xxxxxx named[13067]: zone domain2.com/IN: loaded serial 2022021603 (DNSSEC signed) Feb 16 02:06:48 xxxxxx named[13067]: zone domain3.com/IN: loaded serial 2022021609 (DNSSEC signed) Feb 16 02:06:48 xxxxxx named[13067]: zone localhost/IN: loaded serial 2 Feb 16 02:06:48 xxxxxx named[13067]: all zones loaded Feb 16 02:06:48 xxxxxx named[13067]: running Feb 16 02:06:48 xxxxxx named[13067]: zone domain1.com/IN: sending notifies (serial 2022021603) Feb 16 02:06:48 xxxxxx named[13067]: zone domain2.com/IN: sending notifies (serial 2022021603) Feb 16 02:06:48 xxxxxx named[13067]: zone domain3.com/IN: sending notifies (serial 2022021609)
bind9 log after ns1.domain.com record update; Code: Feb 16 02:38:01 xxxxxx systemd[1]: Reloading BIND Domain Name Server. Feb 16 02:38:01 xxxxxx named[14274]: received control channel command 'reload' Feb 16 02:38:01 xxxxxx named[14274]: loading configuration from '/etc/bind/named.conf' Feb 16 02:38:01 xxxxxx named[14274]: /etc/bind/named.conf.options:21: option 'dnssec-enable' is obsolete and should be removed Feb 16 02:38:01 xxxxxx named[14274]: reading built-in trust anchors from file '/etc/bind/bind.keys' Feb 16 02:38:01 xxxxxx named[14274]: looking for GeoIP2 databases in '/usr/share/GeoIP' Feb 16 02:38:01 xxxxxx named[14274]: using default UDP/IPv4 port range: [32768, 60999] Feb 16 02:38:01 xxxxxx named[14274]: using default UDP/IPv6 port range: [32768, 60999] Feb 16 02:38:01 xxxxxx named[14274]: sizing zone task pool based on 8 zones Feb 16 02:38:01 xxxxxx named[14274]: none:100: 'max-cache-size 90%' - setting to 879MB (out of 976MB) Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 10.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 16.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 17.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 18.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 19.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 20.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 21.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 22.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 23.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 24.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 25.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 26.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 27.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 28.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 29.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 30.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 31.172.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 168.192.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 64.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 65.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 66.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 67.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 68.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 69.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 70.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 71.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 72.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 73.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 74.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 75.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 76.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 77.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 78.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 79.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 80.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 81.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 82.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 83.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 84.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 85.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 86.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 87.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 88.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 89.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 90.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 91.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 92.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 93.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 94.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 95.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 96.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 97.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 98.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 99.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 100.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 101.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 102.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 103.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 104.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 105.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 106.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 107.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 108.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 109.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 110.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 111.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 112.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 113.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 114.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 115.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 116.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 117.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 118.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 119.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 120.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 121.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 122.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx rndc[55675]: server reload successful Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 123.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 124.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 125.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx systemd[1]: Reloaded BIND Domain Name Server. Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 126.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 127.100.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 254.169.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 2.0.192.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 100.51.198.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 113.0.203.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 255.255.255.255.IN-ADDR.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: D.F.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 8.E.F.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 9.E.F.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: A.E.F.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: B.E.F.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: 8.B.D.0.1.0.0.2.IP6.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: EMPTY.AS112.ARPA Feb 16 02:38:01 xxxxxx named[14274]: automatic empty zone: HOME.ARPA Feb 16 02:38:01 xxxxxx named[14274]: none:100: 'max-cache-size 90%' - setting to 879MB (out of 976MB) Feb 16 02:38:01 xxxxxx named[14274]: configuring command channel from '/etc/bind/rndc.key' Feb 16 02:38:01 xxxxxx named[14274]: configuring command channel from '/etc/bind/rndc.key' Feb 16 02:38:01 xxxxxx named[14274]: reloading configuration succeeded Feb 16 02:38:01 xxxxxx named[14274]: reloading zones succeeded Feb 16 02:38:01 xxxxxx named[14274]: zone domain1.com/IN: loaded serial 2022021610 (DNSSEC signed) Feb 16 02:38:01 xxxxxx named[14274]: zone domain1.com/IN: sending notifies (serial 2022021610) Feb 16 02:38:01 xxxxxx named[14274]: all zones loaded Feb 16 02:38:01 xxxxxx named[14274]: running
In order to help you better, do provide us with the require information as stated in Please read before posting! Most of the time you'd be surprised that it even can help you before any of us can.
you are right, I post it in a hurry. system; Code: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal dig domain; Code: ; <<>> DiG 9.16.1-Ubuntu <<>> @localhost cembol.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7505 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: bc91b91f016d8b8301000000620ca3a05a43f5347ba5fd10 (good) ;; QUESTION SECTION: ;cembol.com. IN A ;; ANSWER SECTION: cembol.com. 3600 IN A 80.211.143.65 ;; Query time: 4 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Wed Feb 16 10:11:28 +03 2022 ;; MSG SIZE rcvd: 83 htf_report.txt; Code: ##### SERVER ##### IP-address (as per hostname): [localhost] [WARN] could not determine server's ip address by ifconfig [INFO] OS version is Ubuntu 20.04.3 LTS [INFO] uptime: 10:04:21 up 10:01, 1 user, load average: 0.03, 0.03, 0.00 [INFO] memory: total used free shared buff/cache available Mem: 976Mi 418Mi 100Mi 34Mi 458Mi 362Mi Swap: 4.2Gi 1.6Gi 2.6Gi [INFO] systemd failed services status: UNIT LOAD ACTIVE SUB DESCRIPTION ● certbot.service loaded failed failed Certbot ● snap.lxd.activate.service loaded failed failed Service for snap application lxd.activate LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type. 2 loaded units listed. [INFO] ISPConfig is installed. ##### ISPCONFIG ##### ISPConfig version is 3.2.7p1 ##### VERSION CHECK ##### [INFO] php (cli) version is 7.4.3 [INFO] php-cgi (used for cgi php in default vhost!) is version 7.4.3 ##### PORT CHECK ##### ##### MAIL SERVER CHECK ##### ##### RUNNING SERVER PROCESSES ##### [INFO] I found the following web server(s): Apache 2 (PID 13840) [INFO] I found the following mail server(s): Postfix (PID 2257) [INFO] I found the following pop3 server(s): Dovecot (PID 719) [INFO] I found the following imap server(s): Dovecot (PID 719) [INFO] I found the following ftp server(s): PureFTP (PID 1208) ##### LISTENING PORTS ##### (only () Local (Address) [anywhere]:10080 (2270/./ts3server) [anywhere]:993 (719/dovecot) [anywhere]:995 (719/dovecot) [anywhere]:10022 (2270/./ts3server) [localhost]:10023 (1036/postgrey) [localhost]:10024 (9963/amavisd-new) [localhost]:10025 (2257/master) [localhost]:10026 (9963/amavisd-new) [localhost]:10027 (2257/master) [anywhere]:587 (2257/master) [localhost]:11211 (727/memcached) [anywhere]:110 (719/dovecot) [anywhere]:143 (719/dovecot) [anywhere]:30033 (2270/./ts3server) [anywhere]:465 (2257/master) ***.***.***.***:53 (14274/named) ***.***.***.***:53 (14274/named) [localhost]:53 (14274/named) [anywhere]:21 (1208/pure-ftpd) ***.***.***.***:53 (705/systemd-resolve) [anywhere]:22 (838/sshd:) [localhost]:953 (14274/named) [anywhere]:25 (2257/master) [anywhere]:10011 (2270/./ts3server) [localhost]0080 (2270/./ts3server) *:*:*:*::*:993 (719/dovecot) *:*:*:*::*:995 (719/dovecot) [localhost]0022 (2270/./ts3server) *:*:*:*::*:10024 (9963/amavisd-new) *:*:*:*::*:10026 (9963/amavisd-new) *:*:*:*::*:3306 (955/mysqld) *:*:*:*::*:587 (2257/master) [localhost]10 (719/dovecot) [localhost]43 (719/dovecot) *:*:*:*::*:8080 (13840/apache2) *:*:*:*::*:80 (13840/apache2) *:*:*:*::*:8081 (13840/apache2) *:*:*:*::*:465 (2257/master) *:*:*:*::*a5af:1003:1b9f:53 (14274/named) *:*:*:*::**:*:*:*::*53 (14274/named) *:*:*:*::*:53 (14274/named) *:*:*:*::*:21 (1208/pure-ftpd) *:*:*:*::*:22 (838/sshd:) *:*:*:*::*:25 (2257/master) *:*:*:*::*:953 (14274/named) *:*:*:*::*:443 (13840/apache2) ##### IPTABLES ##### Chain INPUT (policy DROP) target prot opt source destination f2b-postfix-syslog tcp -- [anywhere]/0 [anywhere]/0 multiport dports 25 f2b-dovecot tcp -- [anywhere]/0 [anywhere]/0 multiport dports 110,995,143,993,587,465,4190 f2b-named-refused-tcp tcp -- [anywhere]/0 [anywhere]/0 multiport dports 53,953 f2b-named-refused-udp udp -- [anywhere]/0 [anywhere]/0 multiport dports 53,953 f2b-pure-ftpd tcp -- [anywhere]/0 [anywhere]/0 multiport dports 21 f2b-sshd tcp -- [anywhere]/0 [anywhere]/0 multiport dports 22 ufw-before-logging-input all -- [anywhere]/0 [anywhere]/0 ufw-before-input all -- [anywhere]/0 [anywhere]/0 ufw-after-input all -- [anywhere]/0 [anywhere]/0 ufw-after-logging-input all -- [anywhere]/0 [anywhere]/0 ufw-reject-input all -- [anywhere]/0 [anywhere]/0 ufw-track-input all -- [anywhere]/0 [anywhere]/0 Chain FORWARD (policy DROP) target prot opt source destination ufw-before-logging-forward all -- [anywhere]/0 [anywhere]/0 ufw-before-forward all -- [anywhere]/0 [anywhere]/0 ufw-after-forward all -- [anywhere]/0 [anywhere]/0 ufw-after-logging-forward all -- [anywhere]/0 [anywhere]/0 ufw-reject-forward all -- [anywhere]/0 [anywhere]/0 ufw-track-forward all -- [anywhere]/0 [anywhere]/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination ufw-before-logging-output all -- [anywhere]/0 [anywhere]/0 ufw-before-output all -- [anywhere]/0 [anywhere]/0 ufw-after-output all -- [anywhere]/0 [anywhere]/0 ufw-after-logging-output all -- [anywhere]/0 [anywhere]/0 ufw-reject-output all -- [anywhere]/0 [anywhere]/0 ufw-track-output all -- [anywhere]/0 [anywhere]/0 Chain f2b-dovecot (1 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 Chain f2b-named-refused-tcp (1 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 Chain f2b-named-refused-udp (1 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 Chain f2b-postfix-syslog (1 references) target prot opt source destination REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable RETURN all -- [anywhere]/0 [anywhere]/0 Chain f2b-pure-ftpd (1 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 Chain f2b-sshd (1 references) target prot opt source destination REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable RETURN all -- [anywhere]/0 [anywhere]/0 Chain ufw-after-forward (1 references) target prot opt source destination Chain ufw-after-input (1 references) target prot opt source destination ufw-skip-to-policy-input udp -- [anywhere]/0 [anywhere]/0 udp dpt:137 ufw-skip-to-policy-input udp -- [anywhere]/0 [anywhere]/0 udp dpt:138 ufw-skip-to-policy-input tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:139 ufw-skip-to-policy-input tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:445 ufw-skip-to-policy-input udp -- [anywhere]/0 [anywhere]/0 udp dpt:67 ufw-skip-to-policy-input udp -- [anywhere]/0 [anywhere]/0 udp dpt:68 ufw-skip-to-policy-input all -- [anywhere]/0 [anywhere]/0 ADDRTYPE match dst-type BROADCAST Chain ufw-after-logging-forward (1 references) target prot opt source destination LOG all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] " Chain ufw-after-logging-input (1 references) target prot opt source destination LOG all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] " Chain ufw-after-logging-output (1 references) target prot opt source destination Chain ufw-after-output (1 references) target prot opt source destination Chain ufw-before-forward (1 references) target prot opt source destination ACCEPT all -- [anywhere]/0 [anywhere]/0 ctstate RELATED,ESTABLISHED ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 3 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 11 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 12 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 8 ufw-user-forward all -- [anywhere]/0 [anywhere]/0 Chain ufw-before-input (1 references) target prot opt source destination ACCEPT all -- [anywhere]/0 [anywhere]/0 ACCEPT all -- [anywhere]/0 [anywhere]/0 ctstate RELATED,ESTABLISHED ufw-logging-deny all -- [anywhere]/0 [anywhere]/0 ctstate INVALID DROP all -- [anywhere]/0 [anywhere]/0 ctstate INVALID ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 3 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 11 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 12 ACCEPT icmp -- [anywhere]/0 [anywhere]/0 icmptype 8 ACCEPT udp -- [anywhere]/0 [anywhere]/0 udp spt:67 dpt:68 ufw-not-local all -- [anywhere]/0 [anywhere]/0 ACCEPT udp -- [anywhere]/0 ***.***.***.*** udp dpt:5353 ACCEPT udp -- [anywhere]/0 ***.***.***.*** udp dpt:1900 ufw-user-input all -- [anywhere]/0 [anywhere]/0 Chain ufw-before-logging-forward (1 references) target prot opt source destination Chain ufw-before-logging-input (1 references) target prot opt source destination Chain ufw-before-logging-output (1 references) target prot opt source destination Chain ufw-before-output (1 references) target prot opt source destination ACCEPT all -- [anywhere]/0 [anywhere]/0 ACCEPT all -- [anywhere]/0 [anywhere]/0 ctstate RELATED,ESTABLISHED ufw-user-output all -- [anywhere]/0 [anywhere]/0 Chain ufw-logging-allow (0 references) target prot opt source destination LOG all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW ALLOW] " Chain ufw-logging-deny (2 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 ctstate INVALID limit: avg 3/min burst 10 LOG all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] " Chain ufw-not-local (1 references) target prot opt source destination RETURN all -- [anywhere]/0 [anywhere]/0 ADDRTYPE match dst-type LOCAL RETURN all -- [anywhere]/0 [anywhere]/0 ADDRTYPE match dst-type MULTICAST RETURN all -- [anywhere]/0 [anywhere]/0 ADDRTYPE match dst-type BROADCAST ufw-logging-deny all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 10 DROP all -- [anywhere]/0 [anywhere]/0 Chain ufw-reject-forward (1 references) target prot opt source destination Chain ufw-reject-input (1 references) target prot opt source destination Chain ufw-reject-output (1 references) target prot opt source destination Chain ufw-skip-to-policy-forward (0 references) target prot opt source destination DROP all -- [anywhere]/0 [anywhere]/0 Chain ufw-skip-to-policy-input (7 references) target prot opt source destination DROP all -- [anywhere]/0 [anywhere]/0 Chain ufw-skip-to-policy-output (0 references) target prot opt source destination ACCEPT all -- [anywhere]/0 [anywhere]/0 Chain ufw-track-forward (1 references) target prot opt source destination Chain ufw-track-input (1 references) target prot opt source destination Chain ufw-track-output (1 references) target prot opt source destination ACCEPT tcp -- [anywhere]/0 [anywhere]/0 ctstate NEW ACCEPT udp -- [anywhere]/0 [anywhere]/0 ctstate NEW Chain ufw-user-forward (1 references) target prot opt source destination ACCEPT all -- ***.***.***.***/24 [anywhere]/0 Chain ufw-user-input (1 references) target prot opt source destination ACCEPT udp -- [anywhere]/0 [anywhere]/0 udp dpt:1194 DROP all -- ***.***.***.***/24 [anywhere]/0 DROP all -- ***.***.***.***/16 [anywhere]/0 DROP all -- ***.***.***.***/24 [anywhere]/0 DROP all -- ***.***.***.***/24 [anywhere]/0 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:20 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:21 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:22 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:25 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:53 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:80 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:110 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:143 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:443 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:465 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:587 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:993 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:995 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:3306 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:8080 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:8081 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:10000 ACCEPT udp -- [anywhere]/0 [anywhere]/0 udp dpt:53 ACCEPT udp -- [anywhere]/0 [anywhere]/0 udp dpt:3306 ACCEPT udp -- [anywhere]/0 [anywhere]/0 udp dpt:9987 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:10011 ACCEPT tcp -- [anywhere]/0 [anywhere]/0 tcp dpt:30033 Chain ufw-user-limit (0 references) target prot opt source destination LOG all -- [anywhere]/0 [anywhere]/0 limit: avg 3/min burst 5 LOG flags 0 level 4 prefix "[UFW LIMIT BLOCK] " REJECT all -- [anywhere]/0 [anywhere]/0 reject-with icmp-port-unreachable Chain ufw-user-limit-accept (0 references) target prot opt source destination ACCEPT all -- [anywhere]/0 [anywhere]/0 Chain ufw-user-logging-forward (0 references) target prot opt source destination Chain ufw-user-logging-input (0 references) target prot opt source destination Chain ufw-user-logging-output (0 references) target prot opt source destination Chain ufw-user-output (1 references) target prot opt source destination ##### LET'S ENCRYPT ##### Certbot is installed in /usr/bin/letsencrypt
If ping can not reach the host maybe it has lost Internet connectivyt and thus can not work as name server. Have you tried pinging the IP number, does ping work then? If you altered firewall configuration, maybe you by mistake blocked the host being reached from the internet? My signature has link to name service tutorial, it has troubleshooting insctructions. Check if your name server answers when used from public Internet. Check what is registered as name servers of the domain.
I pinged cembol.com just fine though the ip doesn't matched the one you quoted above. Is your ns1 server now up again?
Have you set up your own name server host and are testing that? You can test it giving as parameter the name server to use, but since looks like you have not entered ns1 A record in your hosting providers name servers the hostname ns1 does not work. Use IP-number of your name server instead in host command and dig command. Now that I figured out what domain and IP-number you have, I tested and your name server does work. But you have not registered your new name server at your domain registrar. See yourself what command whois shows as name server for your domain.
I've 3 sites and they were working just fine till yesterday. I setup up ispconfig more than a year ago. these 3 sites are hosted in my ispconfig confguration. I'm pinging ns1.cembol.com and the result is; ping ns1.cembol.com ping: ns1.cembol.com: Name or service not known
Login to the server ns1.cembol.com and run this command on the shell: dig @localhost ns1.cembol.com If this works, then check the domain registry of your domain cembol.com (the place where you registered it, not on your server) to see if the settings there are correct (correct DNS servers and correct glue records for the name servers).
It shows different ip for both your dns server from my side when I successfully pinged but dig shows no ip for both your dns server. Your top domain however can be pinged and its ip also shows on dig.
your domain cembol.com has expired, it's been parked for free by godaddy. so the nameservers for the domain have been switched to ns05(06).domaincontrol.com, which obviously doesn't have all these A records. go to godaddy and renew your domain.