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什么是IP地址？

IP地址（Internet Protocol Address）是一种用于在计算机网络中唯一表示网络设备的标识码。它由32位的二进制数字组成，其中24位表示网络号，其余8位表示主机号。网络上的每台计算机都必须拥有一个唯一的IP地址，以便其它计算机能够识别它并与它进行通讯。

Public @ 2023-03-04 13:48:10

SRV记录

威海网站建设威海dns
1418

SRV记录SRV记录什么情况下会用到SRV记录？[SRV记录用来标识某台服务器使用了某个服务，常见于微软系统的目录管理]SRV记录的添加方式blob.pngA.主机记录处格式为：服务的名字.协议的类型例如：_sip._tcpB.记录类型为SRV。C.线路类型（默认为必填项，否则会导致部分用户无法解析）D.对应值格式为：优先级权重端口主机名例如：0 5 50

Public @ 2018-06-24 15:45:38

Java主机如何设置默认首页文档？

Java主机的默认首页文档可以通过修改web服务器的配置文件来设置。以下是常见的Java常用的web服务器的设置方法： 1. Apache Tomcat：在Tomcat的conf目录下找到server.xml文件，找到以下配置： ``` ``` 在此标签内添加以下配置： ``` ``` 其中，your-folder-name是你想要设为默认首页的文件夹名。 2. Jetty

Public @ 2023-04-16 13:50:50

域名解析

域名解析是指将域名转换为IP地址的过程。当用户在浏览器中输入一个域名时，浏览器会向本地DNS服务器发出解析请求。本地DNS服务器会向根DNS服务器进行查询，然后逐级向下进行查询，最终找到拥有该域名对应IP地址的服务器并返回给用户的浏览器。这个过程也被称为DNS递归查询。域名解析是互联网通信中非常重要的一环，如果域名解析错误或缓慢会使网页打开变得缓慢或无法打开。

Public @ 2023-06-28 03:50:22

什么是IP地址？

IP地址（Internet Protocol Address）是一种用于在计算机网络中唯一表示网络设备的标识码。它由32位的二进制数字组成，其中24位表示网络号，其余8位表示主机号。网络上的每台计算机都必须拥有一个唯一的IP地址，以便其它计算机能够识别它并与它进行通讯。

Public @ 2023-03-04 13:48:10

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[ DB ] CONNECT:[ UseTime:0.022325s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016567s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6263 LIMIT 1 [ RunTime:0.015229s ]
[ 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:0.015519s ]
[ 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:0.015640s ]
[ 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:0.016146s ]
[ 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` = 6263 LIMIT 1 [ RunTime:0.015148s ]
[ 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+2 where id=6263 [ RunTime:0.015723s ]
[ 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:0.022052s ]
[ 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:0.044618s ]
[ 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` = '威海域名' AND `status` <> -1 LIMIT 1 [ RunTime:0.022530s ]
[ 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` = '威海域名' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033798s ]
[ 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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