Hello,
I am new to DNS and I was trying to create two internal DNS server. I set up named on both and configured a primary and secondary dns server as shown below:
dns01.nyc.aevtech.net
Code:
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
acl "trusted" {
10.10.10.0/24; # Local Frontend Network
};
options {
listen-on port 53 { 127.0.0.1; 10.10.10.2; };
# 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";
allow-query { trusted; };
allow-transfer { 10.10.10.3; };
recursion yes;
dnssec-enable no;
dnssec-validation no;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
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";
include "/etc/named/named.conf.local";
dns02.nyc.aevtech.net
Code:
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
acl "trusted" {
10.10.10.0/24; # Local Frontend Network
};
options {
listen-on port 53 { 127.0.0.1; 10.10.10.2; };
# 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";
allow-query { trusted; };
recursion yes;
dnssec-enable no;
dnssec-validation no;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
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";
include "/etc/named/named.conf.local";
When dns01.nyc.aevtech.net is running I can query hostnames with no problem:
Code:
[root@puppet01 files]# nslookup web01.nyc.aevtech.net
Server: 10.10.10.2
Address: 10.10.10.2#53
Name: web01.nyc.aevtech.net
Address: 10.10.10.167
When I stop the named service on dns01.nyc.aevtech.net so it can fail over to dns02.nyc.aevtech.net I get the following:
Code:
[root@puppet01 files]# nslookup web01.nyc.aevtech.net
;; connection timed out; trying next origin
;; connection timed out; no servers could be reached
These are the logs when I started the service on both host:
dns01.nyc.aevtech.net
Code:
[root@dns01 mvelez]# tail -f /var/log/messages
Aug 7 00:44:45 dns01 named[6632]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Aug 7 00:44:45 dns01 named[6632]: 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
Aug 7 00:44:45 dns01 named[6632]: zone localhost.localdomain/IN: loaded serial 0
Aug 7 00:44:45 dns01 named[6632]: zone localhost/IN: loaded serial 0
Aug 7 00:44:45 dns01 named[6632]: /etc/named/zones/db.nyc.aevtech.net:1: no TTL specified; using SOA MINTTL instead
Aug 7 00:44:45 dns01 named[6632]: zone nyc.aevtech.net/IN: loaded serial 2016080300
Aug 7 00:44:45 dns01 named[6632]: managed-keys-zone ./IN: loaded serial 11
Aug 7 00:44:45 dns01 named[6632]: running
Aug 7 00:44:45 dns01 named[6632]: zone 10.10.in-addr.arpa/IN: sending notifies (serial 2016080300)
Aug 7 00:44:45 dns01 named[6632]: zone nyc.aevtech.net/IN: sending notifies (serial 2016080300)
dns02.nyc.aevtech.net
Code:
[root@dns02 mvelez]# tail -f /var/log/messages
Aug 7 00:44:43 dns02 named[6054]: zone 10.10.in-addr.arpa/IN: loaded serial 2016080300
Aug 7 00:44:43 dns02 named[6054]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Aug 7 00:44:43 dns02 named[6054]: 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
Aug 7 00:44:43 dns02 named[6054]: zone localhost.localdomain/IN: loaded serial 0
Aug 7 00:44:43 dns02 named[6054]: zone localhost/IN: loaded serial 0
Aug 7 00:44:43 dns02 named[6054]: zone nyc.aevtech.net/IN: loaded serial 2016080300
Aug 7 00:44:43 dns02 named[6054]: managed-keys-zone ./IN: loaded serial 11
Aug 7 00:44:43 dns02 named[6054]: running
Aug 7 00:44:43 dns02 named[6054]: zone nyc.aevtech.net/IN: sending notifies (serial 2016080300)
Aug 7 00:44:43 dns02 named[6054]: zone 10.10.in-addr.arpa/IN: sending notifies (serial 2016080300)
Is there any other information I can provide to better assist everyone in helping trouble shoot this? Let me know so I can provide it as soon as possible and thank you in advanced for any and all help!!
