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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...
Equals(=) vs. LIKE
...duce results different from the = comparison operator:
mysql> SELECT 'ä' LIKE 'ae' COLLATE latin1_german2_ci;
+-----------------------------------------+
| 'ä' LIKE 'ae' COLLATE latin1_german2_ci |
+-----------------------------------------+
| 0 |
+------...
Citrix服务器虚拟化：XenApp 6.5发布服务器上的应用程序 - 更多技术 - 清泛...
...够成功启动并运行。此外，您可以使用Profiler 通过隔离间通信链接现有配置文件，以便应用程序即使在隔离环境中运行时也可以根据需要进行交互。创建配置文件并将其保存到应用程序中心内的文件共享中后，请配置用户，并使...
HTML - how can I show tooltip ONLY when ellipsis is activated
... answered Oct 29 '15 at 19:11
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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...
Encode html entities in javascript
...t as following:
var str = "Test´†®¥¨©˙∫ø…ˆƒ∆÷∑™ƒ∆æø𣨠ƒ™en tést".toHtmlEntities();
console.log("Entities:", str);
console.log("String:", String.fromHtmlEntities(str));
Output in console:
Entities: Dit is&...
Who is listening on a given TCP port on Mac OS X?
On Linux, I can use netstat -pntl | grep $PORT or fuser -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
...
Can two applications listen to the same port?
... differs depending on what OS is being considered. In general though:
For TCP, no. You can only have one application listening on the same port at one time. Now if you had 2 network cards, you could have one application listen on the first IP and the second one on the second IP using the same port ...