常用公共DNS服务器地址_威海佰年网络技术有限公司_网站建设_软件开发_私有云_商标注册_公众号_小程序_APP_物联网_ChatGPT

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常用公共DNS服务器地址

威海网站建设威海dns
755

1) Google DNS： - 8.8.8.8 - 8.8.4.4 2) CloudFlare DNS： - 1.1.1.1 - 1.0.0.1 3) Quad9 DNS： - 9.9.9.9 - 149.112.112.112

Public @ 2023-03-01 12:48:06

Linux+Apache下安装SSL证书

威海网站建设威海SSL
1121

一、Apache安装SSL证书需要三个证书文件温馨提示：安装证书前请先备份您需要修改的服务器配置文件配置文档以域名zzidc.com为例zzidc.com-ca-bundle.crt、zzidc.com.crt、zzidc.com.key。注：这三个文件在文件夹for Apache.zip中,其中zzidc.com是您的域名，zzidc.com.crt为公钥，zzidc.com.key为私钥,zz

Public @ 2019-11-20 15:36:24

为什么我测试速度时访问双线、多线的速度还没有电信的快？

很正常，因为双线、多线的速度是受线路质量限制的，在一定程度上也与用户的上网体验有关，可以相对比较一下，如果你追求速度，最好考虑电信特种线路。

Public @ 2023-03-04 17:48:08

什么是域名解析？

威海网站建设威海dns
660

什么是域名解析？域名解析就是域名到IP地址的转换过程。IP地址是网路上标识您站点的数字地址，为了简单好记，采用域名来代替ip地址标识站点地址。域名的解析工作由DNS服务器完成。来源：景安

Public @ 2014-01-05 15:45:36

修改域名dns提示DNS未授权处理办法

威海网站建设威海dns
900

修改域名dns时如下提示:DNS未授权5.png在我司注册的域名，修改为其他公司的DNS时提示DNS未授权，原因是该DNS服务商还没有在域名注册局申请授权，所以该DNS还不能解析该后缀的域名。解决方法如下：1，继续使用我司DNS。2，联系DNS服务商，让他们去相应域名的注册局申请授权。如.wang域名需要DNS服务商到http://nic.wang/申请授权后才能解析。

Public @ 2019-04-01 15:45:39

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.021428s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015154s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6115 LIMIT 1 [ RunTime:0.014376s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.014509s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.014605s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.014976s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6115 LIMIT 1 [ RunTime:0.014370s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+1 where id=6115 [ RunTime:0.015765s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.021517s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.041534s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海dns' AND `status` <> -1 LIMIT 1 [ RunTime:0.021070s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海dns' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.030858s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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