在CentOS系統中,優化域名解析可以通過以下幾個步驟來實現:
sudo yum install bind-chroot -y
systemctl stop firewalld
setenforce 0
vi /etc/named.conf
# 修改內容
listen-on port 53 { any; };
allow-query { any; };
vi /etc/named.rfc1912.zones
# 添加新的DNS區域
zone "example.com" IN {
type master;
file "example.com.zone";
};
systemctl restart named
vi /etc/resolv.conf
# 添加多個DNS服務器
nameserver 8.8.8.8
nameserver 8.8.4.4
sudo yum install nscd
vi /etc/nscd.conf
# 啟用緩存
enable-cache hosts yes
positive-time-to-live hosts 5
service nscd start
chkconfig nscd on
vi /etc/httpd/conf/httpd.conf
# 啟用Gzip壓縮
LoadModule deflate_module modules/mod_deflate.so
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript application/json application/x-javascript
<link rel="stylesheet" href="http://cdn.example.com/style.css">
<script src="http://cdn.example.com/script.js"></script>
以上步驟可以幫助您在CentOS系統中優化域名解析,提高網站的訪問速度和穩定性。