[SOLVED] cant ping DNS server

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benyaminpy
Posts: 6
Joined: 2019/01/03 21:34:42
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[SOLVED] cant ping DNS server

Post by benyaminpy » 2019/04/06 14:18:15

hello,
i was trying to configure dns on my vps, i figured it out by checking the configuration files of other servers that i have access to
so, now the problem is i cant ping my dns server
when i try to ping it on my computer as well as my other vps machines it says Name or service not known
do i get any errors while restarting named service: No

checkout my configuration files:
named.conf :

Code: Select all

options {
	listen-on port 53 { any;};
	listen-on-v6 port 53 { ::1; };
	directory 	"/var/named";
	dump-file 	"/var/named/data/cache_dump.db";
	statistics-file "/var/named/data/named_stats.txt";
	memstatistics-file "/var/named/data/named_mem_stats.txt";
	recursing-file  "/var/named/data/named.recursing";
	secroots-file   "/var/named/data/named.secroots";
	allow-query     { any; };
	recursion no;
	dnssec-enable yes;
	dnssec-validation yes;
	/* Path to ISC DLV key */
	bindkeys-file "/etc/named.iscdlv.key";
	managed-keys-directory "/var/named/dynamic";
	pid-file "/run/named/named.pid";
	session-keyfile "/run/named/session.key";
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};

zone "." IN {
	type hint;
	file "named.ca";
};

include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";

zone "server.my-domain-name.com" IN {
	type master;
	file "/var/named/server.my-domain-name.com.db";
	allow-update { none; };
};
/var/named/server.my-domain-name.com.db :

Code: Select all

$TTL 14400
server.my-domain-name.com. 86400 IN SOA server.my-domain-name.com. info.centos-webpanel.com. (
	2013071600 ;serial, todays date+todays
	86400 ;refresh, seconds
	7200 ;retry, seconds
	3600000 ;expire, seconds
	86400 ;minimum, seconds
)
my-domain-name.com. 86400 IN NS my-domain-name.com.
my-domain-name.com. 86400 IN NS my-domain-name.com.
my-domain-name.com. 14400 IN A MY_VPS_IP
and journalctl -xe output after systemctl restart named:

Code: Select all

Apr 06 18:44:07 server.my-domain-name.com named[8702]: stopping command channel on ::1#953
Apr 06 18:44:07 server.my-domain-name.com named[8702]: no longer listening on 127.0.0.1#53
Apr 06 18:44:07 server.my-domain-name.com named[8702]: no longer listening on 95.216.86.199#53
Apr 06 18:44:07 server.my-domain-name.com named[8702]: no longer listening on ::1#53
Apr 06 18:44:07 server.my-domain-name.com named[8702]: exiting
Apr 06 18:44:07 server.my-domain-name.com systemd[1]: Stopped Berkeley Internet Name Domain (DNS).
-- Subject: Unit named.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named.service has finished shutting down.
Apr 06 18:44:07 server.my-domain-name.com systemd[1]: Starting Generate rndc key for BIND (DNS)...
-- Subject: Unit named-setup-rndc.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named-setup-rndc.service has begun starting up.
Apr 06 18:44:07 server.my-domain-name.com systemd[1]: Started Generate rndc key for BIND (DNS).
-- Subject: Unit named-setup-rndc.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named-setup-rndc.service has finished starting up.
-- 
-- The start-up result is done.
Apr 06 18:44:07 server.my-domain-name.com systemd[1]: Starting Berkeley Internet Name Domain (DNS)...
-- Subject: Unit named.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named.service has begun starting up.
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: zone localhost.localdomain/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: zone localhost/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: 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/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: zone 0.in-addr.arpa/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com bash[8740]: zone server.my-domain-name.com/IN: loaded serial 2013071600
Apr 06 18:44:07 server.my-domain-name.com named[8744]: starting BIND 9.9.4-RedHat-9.9.4-73.el7_6 -u named -c /etc/named.conf
Apr 06 18:44:07 server.my-domain-name.com named[8744]: built with '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--disable-dependency-tracking' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/us
Apr 06 18:44:07 server.my-domain-name.com named[8744]: ----------------------------------------------------
Apr 06 18:44:07 server.my-domain-name.com named[8744]: BIND 9 is maintained by Internet Systems Consortium,
Apr 06 18:44:07 server.my-domain-name.com named[8744]: Inc. (ISC), a non-profit 501(c)(3) public-benefit
Apr 06 18:44:07 server.my-domain-name.com named[8744]: corporation.  Support and training for BIND 9 are
Apr 06 18:44:07 server.my-domain-name.com named[8744]: available at https://www.isc.org/support
Apr 06 18:44:07 server.my-domain-name.com named[8744]: ----------------------------------------------------
Apr 06 18:44:07 server.my-domain-name.com named[8744]: adjusted limit on open files from 4096 to 1048576
Apr 06 18:44:07 server.my-domain-name.com named[8744]: found 1 CPU, using 1 worker thread
Apr 06 18:44:07 server.my-domain-name.com named[8744]: using 1 UDP listener per interface
Apr 06 18:44:07 server.my-domain-name.com named[8744]: using up to 21000 sockets
Apr 06 18:44:07 server.my-domain-name.com named[8744]: loading configuration from '/etc/named.conf'
Apr 06 18:44:07 server.my-domain-name.com named[8744]: reading built-in trusted keys from file '/etc/named.iscdlv.key'
Apr 06 18:44:07 server.my-domain-name.com named[8744]: initializing GeoIP Country (IPv4) (type 1) DB
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GEO-106FREE 20180327 Build 1 Copyright (c) 2018 MaxMind Inc All Rights Reserved
Apr 06 18:44:07 server.my-domain-name.com named[8744]: initializing GeoIP Country (IPv6) (type 12) DB
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GEO-106FREE 20180605 Build 1 Copyright (c) 2018 MaxMind Inc All Rights Reserved
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP City (IPv4) (type 2) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP City (IPv4) (type 6) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP City (IPv6) (type 30) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP City (IPv6) (type 31) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP Region (type 3) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP Region (type 7) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP ISP (type 4) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP Org (type 5) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP AS (type 9) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP Domain (type 11) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: GeoIP NetSpeed (type 10) DB not available
Apr 06 18:44:07 server.my-domain-name.com named[8744]: using default UDP/IPv4 port range: [1024, 65535]
Apr 06 18:44:07 server.my-domain-name.com named[8744]: using default UDP/IPv6 port range: [1024, 65535]
Apr 06 18:44:07 server.my-domain-name.com named[8744]: listening on IPv4 interface lo, 127.0.0.1#53
Apr 06 18:44:07 server.my-domain-name.com named[8744]: listening on IPv4 interface ens160, 95.216.86.199#53
Apr 06 18:44:07 server.my-domain-name.com named[8744]: listening on IPv6 interface lo, ::1#53
Apr 06 18:44:07 server.my-domain-name.com named[8744]: generating session key for dynamic DNS
Apr 06 18:44:07 server.my-domain-name.com named[8744]: sizing zone task pool based on 7 zones
Apr 06 18:44:07 server.my-domain-name.com named[8744]: set up managed keys zone for view _default, file '/var/named/dynamic/managed-keys.bind'
Apr 06 18:44:07 server.my-domain-name.com named[8744]: command channel listening on 127.0.0.1#953
Apr 06 18:44:07 server.my-domain-name.com named[8744]: command channel listening on ::1#953
Apr 06 18:44:07 server.my-domain-name.com named[8744]: managed-keys-zone: loaded serial 2
Apr 06 18:44:07 server.my-domain-name.com named[8744]: zone 0.in-addr.arpa/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com named[8744]: zone server.my-domain-name.com/IN: loaded serial 2013071600
Apr 06 18:44:07 server.my-domain-name.com named[8744]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com named[8744]: 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/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com named[8744]: zone localhost.localdomain/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com named[8744]: zone localhost/IN: loaded serial 0
Apr 06 18:44:07 server.my-domain-name.com named[8744]: all zones loaded
Apr 06 18:44:07 server.my-domain-name.com named[8744]: running
Apr 06 18:44:07 server.my-domain-name.com polkitd[4409]: Unregistered Authentication Agent for unix-process:8724:26534309 (system bus name :1.258, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Apr 06 18:44:07 server.my-domain-name.com systemd[1]: Started Berkeley Internet Name Domain (DNS).
-- Subject: Unit named.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named.service has finished starting up.
-- 
-- The start-up result is done.
Last edited by benyaminpy on 2019/04/07 15:26:35, edited 1 time in total.

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TrevorH
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Posts: 33216
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: cant ping DNS server

Post by TrevorH » 2019/04/06 15:58:53

viewtopic.php?f=12&t=66365
server.my-domain-name.com. 86400 IN SOA server.my-domain-name.com. info.centos-webpanel.com. (
...
my-domain-name.com. 86400 IN NS my-domain-name.com.
This is just wrong. The name on your SOA is what should be appended to all entries in this zone file. The NS (or A/CNAME etc) records should then have the name of the entry in the first column and the ip address in the last. What your file there does is it defines "my-domain-name.com. 14400 IN A MY_VPS_IP" which would end up being my-domain-name.com.server.my-domain-name.com. pointing to MY_VPS_IP.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

benyaminpy
Posts: 6
Joined: 2019/01/03 21:34:42
Contact:

Re: cant ping DNS server

Post by benyaminpy » 2019/04/07 15:26:23

solved the issue,
thanks

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