Bind view

透過bind view的功能，我們可以讓DNS Server見人說人話，見鬼說鬼話囉~怎麼說呢？比如說公司中Internet/Intranet的DNS名稱解析都是用同一台，但我不想讓Internet上的machine可以查詢到我內部的hostname時，此時透過bind view的功能，看是誰來查詢，並回應相關的結果。

整個named.conf的架構舉例如下:

22 view "intranet" {
23 match-clients {"192.168.1.0/24";};
24 zone "." IN {
25 type hint;
26 file "named.root";
27 };
28
29 zone "localdomain." IN {
30 type master;
31 file "localdomain.zone";
32 allow-update { none; };
33 };
34
35 zone "localhost." IN {
36 type master;
37 file "localhost.zone";
38 allow-update { none; };
39 };
40
41 zone "0.0.127.in-addr.arpa." IN {
42 type master;
43 file "named.local";
44 allow-update { none; };
45 };
46
47 zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa." IN {
48 type master;
49 file "named.ip6.local";
50 allow-update { none; };
51 };
52
53 zone "255.in-addr.arpa." IN {
54 type master;
55 file "named.broadcast";
56 allow-update { none; };
57 };
58
59 zone "0.in-addr.arpa." IN {
60 type master;
61 file "named.zero";
62 allow-update { none; };
63 };
64
65 zone "example.com" {
66 type master;
67 file "example.com.zone";
68 };
69 };
70
71
72 view "internet" {
73 match-clients {"!192.168.1.0/24";};
74 zone "." IN {
75 type hint;
76 file "named.root";
77 };
78
79 zone "localdomain." IN {
80 type master;
81 file "localdomain.zone";
82 allow-update { none; };
83 };
84
85 zone "localhost." IN {
86 type master;
87 file "localhost.zone";
88 allow-update { none; };
89 };
90
91 zone "0.0.127.in-addr.arpa." IN {
92 type master;
93 file "named.local";
94 allow-update { none; };
95 };
96
97 zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa." IN {
98 type master;
99 file "named.ip6.local";
100 allow-update { none; };
101 };
102
103 zone "255.in-addr.arpa." IN {
104 type master;
105 file "named.broadcast";
106 allow-update { none; };
107 };
108
109 zone "0.in-addr.arpa." IN {
110 type master;
111 file "named.zero";
112 allow-update { none; };
113 };
114 };
115
116 include "/etc/rndc.key";

其實就是多了
view "internet" {
match-clients {"!192.168.1.0/24";};
};
與
view "intranet" {
match-clients {"192.168.1.0/24";};
};

在這兩個區域內設定相關的zone/zone file就可以了。