# （三）DNS Server設定 ## server端 ``` $ vim /etc/named.conf ``` ```dockerfile= #執行結果 options { listen-on port 53 { any; }; //listen-on-v6 port 53 { ::1; }; directory "/var/named"; 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"; secroots-file "/var/named/data/named.secroots"; recursing-file "/var/named/data/named.recursing"; allow-query { any; }; //allow-query-cache {any;}; allow-transfer { none; }; recursion yes; dnssec-enable yes; dnssec-validation yes; managed-keys-directory "/var/named/dynamic"; pid-file "/run/named/named.pid"; session-keyfile "/run/named/session.key"; include "/etc/crypto-policies/back-ends/bind.config"; }; logging { channel default_debug { file "data/named.run"; severity dynamic; }; }; zone "." IN { type hint; file "named.ca"; }; zone "chuck.im.shu" IN{ type master; file "named.linux.shu"; }; zone "10.24.172.in-addr.arpa" IN{ type master; file "named.192.168.1"; }; include "/etc/named.rfc1912.zones"; include "/etc/named.root.key"; ``` ``` $ vim /var/named/named.linux.shu ``` ```dockerfile= #執行結果 $TTL 600 @ IN SOA master.chuck.im.shu. shu.chuck.im.shu. ( 2011080401 3H 15M 1W 1D ) @ IN NS master.chuck.im.shu. master.chuck.im.shu. IN A 172.24.10.8 @ IN MX 10 chuck.im.shu. chuck.im.shu. IN A 172.24.10.8 centos.chuck.im.shu. IN CNAME chuck.im.shu. ftp.chuck.im.shu. IN CNAME chuck.im.shu. forum.chuck.im.shu. IN CNAME chuck.im.shu. kvm8.chuck.im.shu. IN A 172.24.10.3 kvm10.chuck.im.shu. IN A 172.24.10.5 ``` ``` $ vim /var/named/named.192.168.1 ``` ```dockerfile= #執行結果 $TTL 600 @ IN SOA master.chuck.im.shu. shu.chuck.im.shu. ( 2011080401 3H 15M 1W 1D ) @ IN NS master.chuck.im.shu. @ IN NS kvm8.chuck.im.shu. @ IN NS kvm10.chuck.im.shu. 8 IN PTR master.chuck.im.shu. 8 IN PTR chuck.im.shu. 3 IN PTR kvm8.chuck.im.shu. 5 IN PTR kvm10.chuck.im.shu. ``` ``` $ vim /etc/resolv.conf ``` ```dockerfile= #執行結果 #將原本檔案更改成以下內容 # Generated by NetworkManager search chuck.im.shu ``` ``` $ vim /etc/nsswitch.conf ``` ```dockerfile= #執行結果 #nsswitch.conf檔案有很多找到下面這行確認即可 hosts: files dns myhostname ``` ``` $ vim /etc/hosts ``` ```dockerfile= #執行結果 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 172.24.10.8 chuck.im.shu master.chuck.im.shu ``` ``` $ hostnamectl set-hostname chuck.im.shu ``` ``` $ systemctl restart named $ systemctl enable named $ reboot ``` 測試 ``` $ dig chuck.im.shu ``` ```dockerfile= #執行結果 #找到下面這行answer section確認即可 ;; ANSWER SECTION: chuck.im.shu. 600 IN A 172.24.10.8 ``` ``` $ dig kvm8.chuck.im.shu ``` ```dockerfile= #執行結果 #找到下面這行answer section確認即可 ;; ANSWER SECTION: kvm8.chuck.im.shu. 600 IN A 172.24.10.3 ``` ## client端 ``` $ vim /etc/sysconfig/network-scripts/ifcfg-enp0s3 ``` ```dockerfile= #執行結果 #直接在檔案中新增下面這行 DNS1=172.24.10.3 ``` ``` $ vim /etc/hosts ``` ```dockerfile= #執行結果 #直接在檔案中新增下面兩行 172.24.10.3 kvm8.chuck.im.shu 172.24.10.8 chuck.im.shu master.chuck.im.shu ``` ``` $ vim /etc/resolv.conf ``` ```dockerfile= #執行結果 #將原本檔案更改成以下內容 # Generated by NetworkManager serch chuck.im.shu nameserver 172.24.10.3 ``` ``` $ vim /etc/nsswitch.conf ``` ```dockerfile= #執行結果 #nsswitch.conf檔案有很多找到下面這行確認即可 hosts: files dns myhostname ``` ``` $ hostnamectl set-hostname kvm8.chuck.im.shu $ reboot ``` 測試 ``` $ ping kvm8.chuck.im.shu $ ping chuck.im.shu ``` :::success 皆能ping通表示DNS設定完成:clap: ::: :::info kvm10同kvm8設定 把內容有kvm8都改成kvm10即可 IP也改為172.24.10.5就好 :::