CentOS7 9 搭建DNS伺服器

2021-10-13 23:03:28 字數 3664 閱讀 4838

centos7 搭建dns伺服器，實現區域網網域名稱訪問，內網網域名稱解析

dns服務		       192.168.199.170


vm-dev001.wowo.com 192.168.199.171


vm-dev002.wowo.com 192.168.199.172


vm-dev003.wowo.com 192.168.199.173


yum install bind
在主配置檔案中實現或主配置檔案輔助配置檔案中實現：/etc/named.conf或者/etc/named.rfc1912.zones

zone "zone_name" in ;


file "zone_name.zone";


};
# 下面新增etc/named.rfc1912.zones


zone "wowo.com" in ;
1.在/var/named/目錄下建立區域資料檔案；

[root@vm-wowo-dev0-base named]# pwd


/var/named


[root@vm-wowo-dev0-base named]# cat wowo.com.zone


$ttl 1d


@ in soa dns.wowo.com admin.wowo.com. (


123 ; serial


1d ; refresh


1h ; retry


1w ; expire


3h ) ; minimum


@ in ns dns


@ in mx 5 mail


dns in a 192.168.199.170


mail in a 192.168.199.170


www in a 192.168.199.170


vm-dev001 in a 192.168.199.171


vm-dev002 in a 192.168.199.172


vm-dev003 in a 192.168.199.173
2.修改區域檔案的許可權及屬組

[root@vm-wowo-dev0-base named]# chown :named wowo.com.zone
3.檢查配置檔案和區域檔案是否有語法錯誤

或者systemctl reload named.service

listen-on port 53 ;


下面這些都注釋掉,至於為啥不知道


// 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 ;


// dnssec-enable yes;


// dnssec-validation yes;


#啟動dns服務（說明：dns服務的守護程序為named）


[root@vm-wowo-dev0-base named]# systemctl start named.service


#將dns設為開機自啟動


[root@vm-wowo-dev0-base named]# systemctl enable named.service


#檢視dns服務的狀態


[root@vm-wowo-dev0-base named]# systemctl status named.service


#nslookup一下


[root@vm-wowo-dev001 ~]# nslookup -qt=ns vm-dev001.wowo.com


*** invalid option: qt=ns


server: 192.168.199.170


address: 192.168.199.170#53


name: vm-dev001.wowo.com


address: 192.168.199.171


[root@vm-wowo-dev0-base named]# dig -t a www.wowo.com @192.168.199.170


; <<>> dig 9.11.4-p2-redhat-9.11.4-26.p2.el7_9.3 <<>> -t a www.wowo.com @192.168.199.170


;; global options: +cmd


;; got answer:


;; ->>header<


;; flags: qr aa rd ra; query: 1, answer: 1, authority: 1, additional: 2


;; opt pseudosection:


; edns: version: 0, flags:; udp: 4096


;; question section:


//;www.wowo.com. in a


;; answer section:


www.wowo.com. 86400 in a 192.168.199.170


;; authority section:


wowo.com. 86400 in ns dns.wowo.com.


;; additional section:


dns.wowo.com. 86400 in a 192.168.199.170


;; query time: 0 msec


;; server: 192.168.199.170#53(192.168.199.170)


;; when: 二 1月 05 00:28:49 cst 2021


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