[Инсталляция Oracle RAC 12.1 в Oracle Linux 6.7 (ISCSI + ASM)]: Настройка DNS сервера
| Server: | dnsserv |
DNS сервер настраивается только с целью, чтобы заработал RAC. Если нужен правильно работающий DNS сервер, необходимо обрадиться к специальным руководствам по настройке DNS сервера.
Инсталляция DNS сервера:
Если в каталоге /etc/yum.repos.d нет нет файлов с описанием репозиториев Oracle Linux.
# vi /etc/yum.repos.d/OracleLinuxRepo.repo
[OEL6]
name=Oracle Enterprise Linux $releasever - $basearch
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/latest/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=1
# yum install -y \
bind \
bind-utils
Настройка конфигурационных файлов DNS сервера:
# vi /etc/named.conf
options
{
directory "/var/named";
};
// ## Localdomain with domain prefix
zone "localdomain" IN {
type master;
file "localdomain.zone";
allow-update {none;};
};
// ## zone ARPA
zone "1.168.192.in-addr.arpa" IN {
type master;
file "192.168.1.in-addr.arpa";
};
zone "2.168.192.in-addr.arpa" IN {
type master;
file "192.168.2.in-addr.arpa";
};
zone "3.168.192.in-addr.arpa" IN {
type master;
file "192.168.3.in-addr.arpa";
};
# vi /var/named/localdomain.zone
$TTL 86400
@ IN SOA ns1.localdomain. root.localhost (
2010063000 ; serial
28800 ; refresh
14400 ; retry
3600000 ; expiry
86400 ) ; minimum
@ IN NS ns1.localdomain.
localhost IN A 127.0.0.1
ns1 IN A 192.168.1.10
rac12-scan IN A 192.168.1.31
rac12-scan IN A 192.168.1.32
rac12-scan IN A 192.168.1.33
rac1-vip IN A 192.168.1.21
rac2-vip IN A 192.168.1.22
rac1 IN A 192.168.1.11
rac2 IN A 192.168.1.12
storage IN A 192.168.1.15
rac1-priv-interconnect IN A 192.168.2.11
rac2-priv-interconnect IN A 192.168.2.12
rac1-priv-storage IN A 192.168.3.11
rac2-priv-storage IN A 192.168.3.12
# vi /var/named/192.168.1.in-addr.arpa
$TTL 86400
@ IN SOA ns1.localdomain. postmaster.localhost. (
2010063000 ; serial
28800 ; refresh
14400 ; retry
3600000 ; expiry
86400 ) ; minimum
@ IN NS ns1.localdomain.
31 IN PTR rac12-scan.localdomain.
32 IN PTR rac12-scan.localdomain.
33 IN PTR rac12-scan.localdomain.
21 IN PTR rac1-vip.localdomain.
22 IN PTR rac2-vip.localdomain.
11 IN PTR rac1.localdomain.
12 IN PTR rac2.localdomain.
13 IN PTR storage.localdomain.
# vi /var/named/192.168.2.in-addr.arpa
$TTL 86400
@ IN SOA ns1.localdomain. postmaster.localhost. (
2010063000 ; serial
28800 ; refresh
14400 ; retry
3600000 ; expiry
86400 ) ; minimum
@ IN NS ns1.localdomain.
11 IN PTR rac1-priv-interconnect.localdomain.
12 IN PTR rac2-priv-interconnect.localdomain.
# vi /var/named/192.168.3.in-addr.arpa
$TTL 86400
@ IN SOA ns1.localdomain. postmaster.localhost. (
2010063000 ; serial
28800 ; refresh
14400 ; retry
3600000 ; expiry
86400 ) ; minimum
@ IN NS ns1.localdomain.
11 IN PTR rac1-priv-storage.localdomain.
12 IN PTR rac2-priv-storage.localdomain.
Добавление в автозапуск:
# chkconfig --level 345 named on
Restart
# service named restart
Статус:
rndc status
Проверка на клиентах:
nslookup rac1
nslookup rac2.localdomain
nslookup 192.168.1.11