CentOS7 9 搭建DNS伺服器

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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