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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...

...sql> START SLAVE; mysql> SHOW SLAVE STATUS; 如果IO线程和SQL线程都显示Yes,就可以感谢上帝了: Slave_IO_Running: Yes Slave_SQL_Running: Yes 如果显示No,则说明某些配置步骤有问题,请重新对照一遍前面所说的步骤。 故障 问题:主从复制...
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Connecting to TCP Socket from browser using javascript

...tly no popular browser has implemented any such raw sockets api for javascript that lets you create and access raw sockets, but a draft for the implementation of raw sockets api in JavaScript is under-way. Have a look at these links: http://www.w3.org/TR/raw-sockets/ https://developer.mozilla.org/...
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How do I redirect output to a variable in shell? [duplicate]

I have a script like that 8 Answers 8 ...
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Remote Connections Mysql Ubuntu

...and below uncommented in /etc/mysql/my.cnf and assigned to your computers IP address and not loopback For mysql version 5.7 and above uncommented in /etc/mysql/mysql.conf.d/mysqld.cnf and assigned to your computers IP address and not loopback #Replace xxx with your IP Address bind-address ...
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Origin null is not allowed by Access-Control-Allow-Origin

...partially solved simply by using the following jQuery instruction: <script> $.support.cors = true; </script> I tried it on IE10.0.9200, and it worked immediately (using jquery-1.9.0.js). On chrome 28.0.1500.95 - this instruction doesn't work (this happens all over as david compl...
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Node.js + Nginx - What now?

...s-available/yourdomain.com In it you should have something like: # the IP(s) on which your node server is running. I chose port 3000. upstream app_yourdomain { server 127.0.0.1:3000; keepalive 8; } # the nginx server instance server { listen 80; listen [::]:80; server_name y...
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Keep-alive header clarification

...ween computer A and server F")? A TCP connection is recognized by source IP and port and destination IP and port. Your OS, all intermediate session-aware devices and the server's OS will recognize the connection by this. HTTP works with request-response: client connects to server, performs a requ...
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Cannot ping AWS EC2 instance

...ill help someone else... 1) First make sure the EC2 instance has a public IP. If has a Public DNS or Public IP address (circled below) then you should be good. This will be the address you ping. 2) Next make sure the Amazon network rules allow Echo Requests. Go to the Security Group for the EC2. ...
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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网

...允许用户将块连接在一起以为应用程序提供功能。 图 2 显示了一组连接块的示例,用于创建大声朗读消息的应用程序。 图 1:App Inventor 平台的屏幕截图,其中包含设计器视图(顶部)和块编辑器视图(底部) 图 2:用...
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How to link godaddy domain with AWS Elastic Beanstalk environment?

...f SEO and not recommended by Amazon. Even you should not point a record to IP directly - it will cause a lot of troubles in the future because IP can be changed any moment. The most elegant way is to migrate DNS service from GoDaddy to Route 53. You still will be with GoDaddy, but handling requests...