[root@os7-httpd1 ~]# rpm -ql bind
/etc/named.conf
/usr/lib/systemd/system/named.service

/usr/sbin/named  #對外提供服務

資料庫檔案 
/var/log/named.log
/var/named
/var/named/data
/var/named/dynamic
/var/named/named.ca #網際網路13個根
/var/named/named.empty
/var/named/named.localhost
/var/named/named.loopback
/var/named/slaves

修改named配置檔案,設定所有人都能到本dns伺服器查詢
cat /etc/named.conf -n

    12	options {
    13		listen-on port 53 { localhost; }; localhost表示機器都能通過此機器進行上網
    14		listen-on-v6 port 53 { ::1; };
    15		directory 	"/var/named";
    16		dump-file 	"/var/named/data/cache_dump.db";
    17		statistics-file "/var/named/data/named_stats.txt";
    18		memstatistics-file "/var/named/data/named_mem_stats.txt";
    19		recursing-file  "/var/named/data/named.recursing";
    20		secroots-file   "/var/named/data/named.secroots";
    21		allow-query     { localhost;any; }; # 對外提供服務,任何人都可以向我查詢
    22	

 

managed-keys-directory "/var/named/dynamic";