今天突然发现打开页面很卡，测试了一下静态页面，速度很快。

因为打开静态页面的速度很快，nginx应该没问题，其后查看Nginx的错误日志，也没有发现明显的错误出现。

打开无数据库的页面也很快，所以就剩下一个Mysql了

在看了一下Mysql的慢查询日志后就发现如下代码

[16-Oct-2013 13:17:43]  [pool www] pid 19134
script_filename = /htdocs/shiniv.com/blog.shiniv.com//index.php
[0x08f83180] curl_exec() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:397
[0x08f83068] fetch_and_cache() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:623
[0x08f82fb8] get_cached_minify_urls() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:598
[0x08f82ed8] build_minify_urls() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:834
[0x08f82e1c] inject_js() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:886
[0xbf8685f8] modify_buffer() unknown:0
[0x08f82dac] ob_end_flush() /htdocs/shiniv.com/blog.shiniv.com/wp-content/plugins/wp-minify/wp-minify.php:916
[0xbf868948] post_content() unknown:0
[0x08f82c98] call_user_func_array() /htdocs/shiniv.com/blog.shiniv.com/wp-includes/plugin.php:406
[0x08f82c30] do_action() /htdocs/shiniv.com/blog.shiniv.com/wp-includes/general-template.php:1617
[0x08f82bcc] wp_footer() /htdocs/shiniv.com/blog.shiniv.com/wp-content/themes/pixelpower-1/footer.php:16
[0x08f82b04] +++ dump failed

在VPS下试了下CURL博客页面，大概要几秒钟才显示具体代码。

这个应该就是DNS的问题，修改下就好了。

首先，查看下当前的DNS服务器地址

cat /etc/resolv.conf 

然后编辑它

vi /etc/resolv.conf 

将nameserver改为8.8.8.8或者8.8.4.4 ，如果VPS在国内的话，有可能还会被墙，更换为114.114.114.114就好了。

保存退出，再试一下运行

curl http://blog.shiniv.com

看看速度是不是很快呢～～

【声明】本文 修改VPS的DNS 为柠之漠然原创文章，转载请注明出自 枫之落叶
并保留本文有效链接：https://blog.shiniv.com/2013/10/modify-vps-dns/ , 转载请保留本声明！