# Bind9 系統:ubuntu server 1804 ###### tags: `ubuntu` `dns` ### 0x00 安裝 apt install bind9 ### 0x01 設定 named.conf.options nano /etc/bind/named.conf.options ``` acl "trusted" { 192.168.0.1 #信任ip列表,可以設定本地端 192.168.0.0/24 #網段 }; options { directory "/var/cache/bind"; recursion no; # enables resursive queries allow-recursion { trusted; }; # 信任端 listen-on { 192.168.0.1; }; # 監聽ip allow-transfer { none; }; # disable zone transfers by default forwarders { 8.8.8.8; 1.1.1.1; }; }; ``` allow-recursion:允許哪些來源可以使用 DNS 主機進行遞迴查詢動作。簡單說就是透過這台 DNS 來查詢任何資料,包含不是該 DNS 主機負責的 zone 也代為查詢 ### 註記 在Ubuntu下的設定檔有三個 named.conf.default-zones named.conf.local named.conf.options 在CentOS下只有一個設定檔
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