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快云vps怎么备份数据？

威海服务器/VPS 威海VPS
1056

1、windows系统通过在服务器中安装FTP工具将数据备份到本地；

2、linux系统通过ssh远程登录后安装xftp工具进行本地和服务器数据传输。

来源：景安

Public @ 2016-11-09 16:13:15

linux nginx 网站访问提示502 Bad Gateway

威海服务器/VPS 威海Nginx
1136

从日志报错分析，是php线程打开文件句柄受限导致的，解决办法：1、提升服务器的文件句柄打开打开vi /etc/security/limits.conf 底部加上* soft nofile 51200* hard nofile 51200vi /etc/sysctl.conf 底部添加fs.file-max=512002、提升nginx的进程文件打开数vi /www/wdlinux/ng

Public @ 2019-03-13 15:47:43

如何计算快云带宽与在线人数

威海服务器/VPS 威海服务器
1108

要计算快云带宽和在线人数，需要知道以下几个因素： 1. 显示屏分辨率和刷新率：这决定了每秒需要传输的数据量。具有更高分辨率和刷新率的显示屏需要更多的带宽。 2. 网络质量：快云与用户之间的网络连接质量越好，传输速度越快。网络质量受到许多因素的影响，例如网络速度、延迟、丢包率等。 3. 在线人数：每个在线用户都需要一定的带宽来传输视频和音频数据。在线人数越多，需要的总带宽就越大。计算公式：快云

Public @ 2023-06-28 18:00:18

快云VPS如何远程登录？

威海服务器/VPS 威海VPS
1444

远程登录是快云VPS使用基础。远程登录根据不同的VPS系统，有着不同的方式。快云VPS除基础型配置外，其他5种配置均支持Windows 2003、Windows 2008及CentOS 6.6。其中Windows 2003与Windows 2008同属Windows系列系统，远程登录方式相同，而CentOS 6.6属于Linux系列发行版本，需采用SSH方式远程登录，下面详细介绍一下，两类系统的远

Public @ 2021-12-05 16:13:15

快云VPS支持多种环境多个数据库吗？

威海服务器/VPS 威海VPS
972

支持，可同时安装mysql和mssql。

Public @ 2020-12-03 16:13:14

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[ DB ] CONNECT:[ UseTime:0.021065s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015110s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4753 LIMIT 1 [ RunTime:0.014198s ]
[ 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:0.015310s ]
[ 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:0.014542s ]
[ 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:0.015243s ]
[ 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` = 4753 LIMIT 1 [ RunTime:0.014032s ]
[ 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=4753 [ RunTime:0.016196s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服务器/VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.021783s ]
[ 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` = '威海服务器/VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.038657s ]
[ 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VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.021039s ]
[ 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VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033033s ]
[ 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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