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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...能动态地设置。 为了动态地设置，TCP引入了RTT——Round Trip Time，也就是一个数据包从发出去到回来的时间。这样发送端就大约知道需要多少的时间，从而可以方便地设置Timeout——RTO（Retransmission TimeOut），以让我们的重传机制更...
DaffyMenu 扩展：弹出菜单扩展，为组件添加弹出式菜单功能 · App Inventor 2 中文网
... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...：实际应用时，应该加上权限判断逻辑，比如只有限定的IP地址才能使用此功能。
当数据库有新数据的时候，可以通过触发器来写Nginx共享内存，当然，在应用层通过观察者模式来写Nginx共享内存通常会是一个更优雅的选择。
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ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ck = NULL;
//使用tcp协议进行通信，需要连接的目标机器IP地址为192.168.1.2
//通信使用的网络端口 为7766
const char * pAddr = "tcp://192.168.1.2:7766";
//创建context
if((pCtx = zmq_ctx_new()) == NULL)
{
return 0;
}
//...
Test if remote TCP port is open from a shell script
...ing if a given TCP port is open on a remote server, from inside a Shell script.
16 Answers
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ConnectionTimeout versus SocketTimeout
... answer. This means that the server has been shut down, you used the wrong IP/DNS name, wrong port or the network connection to the server is down.
A socket timeout is dedicated to monitor the continuous incoming data flow. If the data flow is interrupted for the specified timeout the connection is...
SSH to Elastic Beanstalk instance
... access. The below will lock it down to only allow ingress from a specific IP address.
SSH | tcp | 22 | 22 | 192.168.1.1/32
Configure the environment of your Elastic Beanstalk Application
If you haven't made a key pair yet, make one by clicking Key Pairs below Security Group in the ec2 tab.
In...
What does “connection reset by peer” mean?
...e. This bypasses the normal half-closed state transition. I like this description:
"Connection reset by peer" is the TCP/IP equivalent of slamming the phone back on the hook. It's more polite than merely not replying, leaving one hanging. But it's not the FIN-ACK expected of the truly polite TCP...
How to configure Fiddler to listen to localhost?
... Even this is overkill. All you have to do is use the computer's IP address instead of localhost.
– Christian Findlay
Nov 14 '18 at 22:40
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Add subdomain to localhost URL
... If you visit either in your web browser, they will work the same, in principle, as localhost, but your web server will see the correct domain in its Host header.
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