Hướng dẫn kích hoạt BIND trên CentOS 7

1. Kích hoạt BIND trên CentOS 7

[root@hocmangmaytinh ~]# systemctl start named

[root@hocmangmaytinh ~]# systemctl enable named

2. Nếu đang chạy Firewalld, hãy cho phép dịch vụ DNS Server. BIND sử dụng port 53/TCP, UDP.

[root@hocmangmaytinh ~]# firewall-cmd --add-service=dns --permanent 
success

[root@hocmangmaytinh ~]# firewall-cmd --reload 
success

3. Thay đổi DNS Server

[root@hocmangmaytinh ~]# nmcli c modify eno16777736 ipv4.dns 10.0.0.30

[root@hocmangmaytinh ~]# nmcli c down eno16777736; nmcli c up eno16777736

4. Names và Address được phân giải thành công

[root@hocmangmaytinh ~]# dig demo.hocmangmaytinh.com.

; <<>> DiG 9.9.4-RedHat-9.9.4-14.el7 <<>> demo.hocmangmaytinh.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41735
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;demo.hocmangmaytinh.com.              IN      A

;; ANSWER SECTION:
demo.hocmangmaytinh.com.       86400   IN      A       10.0.0.30

;; AUTHORITY SECTION:
hocmangmaytinh.com.           86400   IN      NS      demo.hocmangmaytinh.com.

;; Query time: 1 msec
;; SERVER: 10.0.0.30#53(10.0.0.30)
;; WHEN: Thu Jul 10 14:43:35 JST 2014
;; MSG SIZE  rcvd: 75

[root@hocmangmaytinh ~]# dig -x 10.0.0.30

; <<>> DiG 9.9.4-RedHat-9.9.4-14.el7 <<>> -x 10.0.0.30
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14268
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;30.0.0.10.in-addr.arpa.                IN      PTR

;; ANSWER SECTION:
30.0.0.10.in-addr.arpa. 86400   IN      PTR     demo.hocmangmaytinh.com.

;; AUTHORITY SECTION:
0.0.10.in-addr.arpa.    86400   IN      NS      demo.hocmangmaytinh.com.

;; ADDITIONAL SECTION:
demo.hocmangmaytinh.com.       86400   IN      A       10.0.0.30

;; Query time: 1 msec
;; SERVER: 10.0.0.30#53(10.0.0.30)
;; WHEN: Thu Jul 10 14:44:39 JST 2014
;; MSG SIZE  rcvd: 111