DNS服务器搭建
DNS服务器搭建
1.环境准备
HOSTNAME | HOSTNAME | AUTH |
|---|---|---|
192.168.222.219 | node1.com | master |
192.168.222.220 | node2.com | work |
192.168.222.221 | node3.com | work |
192.168.222.222 | node4.com | NFS,DNS |
环境我是基于k8s搭建zookeeper的，懒得改
[root@ nodeX]# sed -ri 's/(DNS.*)=.*/\1=192.168.222.222/g' /etc/sysconfig/ifcfg-ens33
[root@ nodeX]# systemctl restart ens33
[root@ nodeX]# yum install -y bind-utils2.DNS服务器的配置
2.1 正向解析
[root@ node4]# yum install -y bind
[root@ node4]# vim /etc/named.conf #修改两项
listen-on port 53 { any; };
allow-query { any; };
[root@ node4]# cat /etc/named.rfc1912.zone
zone "0.in-addr.arpa" IN {
type master;
file "named.empty";
allow-update { none; };
};把这5行复制到最下面4遍。
修改为
zone "node1.com" IN {
type master;
file "node1.com.zone";
allow-update { none; };
};
zone "node2.com" IN {
type master;
file "node2.com.zone";
allow-update { none; };
};
zone "node3.com" IN {
type master;
file "node3.com.zone";
allow-update { none; };
};
zone "node4.com" IN {
type master;
file "node4.com.zone";
allow-update { none; };
};[root@ node4]# cd /var/named
[root@ node4]# cp -a named.localhost ./{node1.com.zone,node2.com.zone,node3.com.zone,node4.com.zone}
分别改为
[root@ node4]# cat node*.com.zone
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
@ A 192.168.222.219
----------------------------------------------------------
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
www A 192.168.222.220
----------------------------------------------------------
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
www A 192.168.222.221
----------------------------------------------------------
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
@ A 192.168.222.222# 可以使用named-checkconf /etc/named.conf /etc/named.conf (/etc/named.rfc1912.zone /etc/named.rfc1912.zone) 检测配置文件
# name-checkzone node(1-4).com.zone node(1-4).com.zone
# systemctl restart named //重启服务，让配置生效# nslookup node1.com
Server: 192.168.222.222
Address: 192.168.222.222#53
Name: node1.com
Address: 192.168.222.219
#其余也是一样2.2 反向解析
[root@ node4]# cat /etc/named.rpc1912.zone
zone "1.0.0.127.in-addr.arpa" IN {
type master;
file "named.loopback";
allow-update { none; };
};
#还是把这5行复制4次[root@ node4]# cat /etc/named.rpc1912.zone
zone "219.222.168.192.in-addr.arpa" IN {
type master;
file "192.168.222.219.zone";
allow-update { none; };
};
zone "220.222.168.192.in-addr.arpa" IN {
type master;
file "192.168.222.220.zone";
allow-update { none; };
};
zone "221.222.168.192.in-addr.arpa" IN {
type master;
file "192.168.222.221.zone";
allow-update { none; };
};
zone "222.222.168.192.in-addr.arpa" IN {
type master;
file "192.168.222.222.zone";
allow-update { none; };
};[root@ node4]# cd /var/named
[root@ node4]# cp ./named.loopback ./192.168.222.219.zone
[root@ node4]# cp ./named.loopback ./192.168.222.220.zone
[root@ node4]# cp ./named.loopback ./192.168.222.221.zone
[root@ node4]# cp ./named.loopback ./192.168.222.222.zone
[root@ node4]# cat ./192.168.222.2*.zone
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
PTR node1.com.
19 PTR node1.com.
---------------------------------------------------------
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
PTR node2.com.
20 PTR node2.com.
---------------------------------------------------------
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
PTR node3.com.
21 PTR node3.com.
---------------------------------------------------------
$TTL 1D
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
PTR node4.com.
22 PTR node4.com.[root@ node4]# systemctl restart named
[root@ nodeX]# nslookup 192.168.222.219
219.222.168.192.in-addr.arpa name = node1.com.以上。
Q.E.D.
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