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What is the difference between a port and a socket?
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Summary
A TCP socket is an endpoint instance defined by an IP address and a port in the context of either a particular TCP connection or the listening state.
A port is a virtualisation identifier defining a service endpoint (as disti...
App Inventor 2 试验组件 · App Inventor 2 中文网
...前的任何对话。
Firebase数据库
Firebase 组件与 Web 服务通信以存储并获取数据。 该组件可以在标签下存储值并检索与标签关联的值。 它还拥有一个监听器，可以在存储值改变时触发事件。
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FirebaseDB vs TinyWebDB 区别
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Can TCP and UDP sockets use the same port?
First of all, is there any problem with using both UDP and TCP on the same server?
2 Answers
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TCP: can two different sockets share a port?
...criminated not only by source/destination port/IP, but also by a protocol (TCP, UDP etc.), if I am not mistaken.
– Ondrej Peterka
Apr 27 '14 at 15:00
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Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?
...L to ascertain if your server is included in your network list.
Enable TCP/IP in SQL Server Configuration
When two or more SQL Servers are connected across network they do all communication using TCP/IP. The default port of SQL Server installation is 1433. This port can be changed through S...
Enable remote connections for SQL Server Express 2012
...iscovered was here:
How do I configure SQL Server Express to allow remote tcp/ip connections on port 1433?
Run SQL Server Configuration Manager.
Go to SQL Server Network Configuration > Protocols for SQLEXPRESS.
Make sure TCP/IP is enabled.
So far, so good, and entirely expected. But then:
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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...息及时性的前提下，根据网络类型自适应的找出保活信令TCP连接的尽可能大的心跳间隔，从而达到减少安卓微信因心跳引起的空中信道资源消耗，减少心跳Server的负载，以及减少部分因心跳引起的耗电。
主要方法是参考WhatsApp...
Freeing up a TCP/IP port?
...tening for http requests on port 80 (run as root or use sudo):
# fuser 80/tcp
If you want to kill them, then just add the -k option.
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Can't connect to localhost on SQL Server Express 2012 / 2016
... If not, start it.
You need to make sure that SQL Server is allowed to use TCP/IP or named pipes. You can turn these on by opening the SQL Server Configuration Manager in Start > Programs > Microsoft SQL Server 2012 > Configuration Tools (or SQL Server Configuration Manager), and make sure ...
Keep-alive header clarification
...this info kept ("this connection is between 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: cli...