Linux服务器配置RAC DNS服务器
作者：互联网
一、安装Linux服务器
| 主机版本 | 主机名 | 主机内存 | 主机磁盘空间 | 主机网卡 | DNS主机IP | DNS服务名 |
| redhat 7.9 | DNSSERVER | 1G | 50G | eth0 | 10.211.55.200 | lucifer.com |
二、配置YUM源，安装BIND
##1.通过cdrom挂载
mount /dev/cdrom /mnt
##2.通过安装镜像源挂载
mount -o loop /soft/rhel-server-7.9-x86_64-dvd.iso /mnt
##配置yum文件
cat <<EOF>/etc/yum.repo.d/local.repo
[local]
name=local
baseurl=file:///mnt
gpgcheck=0
enabled=1
EOF
##关闭防火墙
##Linux6
service iptables stop
chkconfig iptables off
##Linux7
systemctl stop firewalld
systemctl disable firewalld
##安装bind
yum install -y bind-libs bind bind-utils
##设置开启自启
##LINUX6
chkconfig named on
##LINUX7
systemctl enable named
##配置网络
yum install -y bash-com*
su -
nmcli connection show
nmcli connection modify eth0 ipv4.addresses 10.211.55.200/24 ipv4.gateway 10.211.55.1 ipv4.method manual autoconnect yes
ip a
三、配置DNS服务器
1、配置/etc/named.conf文件
cat <<EOF >/etc/named.conf
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 yes;
dnssec-enable yes;
dnssec-validation yes;
bindkeys-file "/etc/named.root.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";
EOF2、配置/etc/named.rfc1912.zones文件
DNSNAME=lucifer.com
RacPublicIPFX=55.211.10.
RacPrivFX=1.10.10.
RacPriv1FX=1.1.1.
cat <<EOF >>/etc/named.rfc1912.zones
zone "${DNSNAME}" IN {
type master;
file "${DNSNAME}.zone";
allow-update { none; };
};
zone "${RacPublicIPFX}in-addr.arpa." IN {
type master;
file "${RacPublicIPFX}arpa";
allow-update { none; };
};
zone "${RacPrivFX}in-addr.arpa." IN {
type master;
file "${RacPrivFX}arpa";
allow-update { none; };
};
zone "${RacPriv1FX}in-addr.arpa." IN {
type master;
file "${RacPriv1FX}arpa";
allow-update { none; };
};
EOF3、配置正向解析 lucifer.com.zone 文件
DNSNAME=lucifer.com
DNSIP=10.211.55.200
cat <<EOF >/var/named/"${DNSNAME}".zone
\$TTL 1D
@ IN SOA ${DNSNAME}. root.${DNSNAME}. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
@ IN NS ns.${DNSNAME}.
ns IN A ${DNSIP}
EOF4、配置反向解析 55.211.10.arpa 文件
RacPublicIPFX=55.211.10.
DNSNAME=lucifer.com
DNSIP=10.211.55.200
cat <<EOF >/var/named/"${RacPublicIPFX}"arpa
\$TTL 1D
@ IN SOA ${DNSNAME}. root.${DNSNAME}. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS ns.${DNSNAME}.
ns A ${DNSIP}
EOF5、配置反向解析 1.10.10.arpa文件
RacPrivFX=1.10.10.
DNSNAME=lucifer.com
DNSIP=10.211.55.200
cat <<EOF >/var/named/"${RacPrivFX}"arpa
\$TTL 1D
@ IN SOA ${DNSNAME}. root.${DNSNAME}. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS ns.${DNSNAME}.
ns A ${DNSIP}
EOF6、配置反向解析 1.1.1.arpa文件
RacPrivFX=1.1.1.
DNSNAME=lucifer.com
DNSIP=10.211.55.200
cat <<EOF >/var/named/"${RacPrivFX}"arpa
\$TTL 1D
@ IN SOA ${DNSNAME}. root.${DNSNAME}. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS ns.${DNSNAME}.
ns A ${DNSIP}
EOF四、配置RAC IP
##/var/named/lucifer.com.zone
cat <<EOF>>/var/named/lucifer.com.zone
CANLON IN A 10.211.55.18
rac11g01 IN A 10.211.55.100
rac11g02 IN A 10.211.55.101
rac11g01-priv IN A 10.10.1.1
rac11g02-priv IN A 10.10.1.2
rac11g01-priv1 IN A 1.1.1.1
rac11g02-priv1 IN A 1.1.1.2
rac11g01-vip IN A 10.211.55.102
rac11g02-vip IN A 10.211.55.103
rac11g-scan IN A 10.211.55.104
rac11g-scan IN A 10.211.55.105
rac11g-scan IN A 10.211.55.106
EOF
##/var/named/55.211.10.arpa
cat <<EOF>>/var/named/55.211.10.arpa
18 PTR CANLON.lucifer.com.
100 PTR rac11g01.lucifer.com.
101 PTR rac11g02.lucifer.com.
102 PTR rac11g01-vip.lucifer.com.
103 PTR rac11g02-vip.lucifer.com.
104 PTR rac11g-scan.lucifer.com.
105 PTR rac11g-scan.lucifer.com.
106 PTR rac11g-scan.lucifer.com.
EOF
##/var/named/1.10.10.arpa
cat <<EOF>>/var/named/1.10.10.arpa
1 PTR rac11g01-priv.lucifer.com.
2 PTR rac11g02-priv.lucifer.com.
EOF
##/var/named/1.1.1.arpa
cat <<EOF>>/var/named/1.1.1.arpa
1 PTR rac11g01-priv1.lucifer.com.
2 PTR rac11g02-priv1.lucifer.com.
EOF五、启动DNS服务
##Linux6
service named start
##Linux7
systemctl start named六、配置RAC节点DNS
cat <<EOF>>/etc/hosts
##Public IP
10.211.55.100 rac11g01.lucifer.com rac11g01
10.211.55.101 rac11g02.lucifer.com rac11g02
##Private IP
10.10.1.1 rac11g01-priv.lucifer.com rac11g01-priv
10.10.1.2 rac11g02-priv.lucifer.com rac11g02-priv
##Virtual IP
10.211.55.102 rac11g01-vip.lucifer.com rac11g01-vip
10.211.55.103 rac11g02-vip.lucifer.com rac11g02-vip
##SCAN IP
##10.211.55.104 rac11g-scan.lucifer.com rac11g-scan
##10.211.55.105 rac11g-scan.lucifer.com rac11g-scan
##10.211.55.106 rac11g-scan.lucifer.com rac11g-scan
EOF
cat <<EOF>>/etc/resolv.conf
nameserver 10.211.55.200
EOF测试：
标签：named,RAC,##,lucifer,DNSNAME,DNS,服务器,10.211,com 来源： https://blog.csdn.net/m0_50546016/article/details/116742628