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How large should my recv buffer be when calling recv in the socket library
I have a few questions about the socket library in C. Here is a snippet of code I'll refer to in my questions.
6 Answers
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Solving a “communications link failure” with JDBC and MySQL [duplicate]
...s at least on person who his problem has been solved with that solution.
Tip: For the solutions that you need to change the MySQL settings, you can refer to the following files:
Linux: /etc/mysql/my.cnf or /etc/my.cnf (depending on the Linux distribution and MySQL package used)
Windows: C:**Progr...
Getting Chrome to accept self-signed localhost certificate
...sicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = $NAME # Be sure to include the domain name here because Common Name is not so commonly honoured by itself
DNS.2 = bar.$NAME # Optionally, add additio...
MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
...us user ''@'localhost' or ''@'127.0.0.1'.
As per the manual:
When multiple matches are possible, the server must determine which of
them to use. It resolves this issue as follows: (...)
When a client attempts to connect, the server looks through the rows [of table mysql.user] in sorte...
BBC micro:bit 平台 · App Inventor 2 中文网
...01 开始。
实验01：连上 micro:bit，点亮第一行字 —— 扫描 / 连接 / 写数据，还能在点阵上画图案
实验02：按 A/B 键让小球跑起来 —— 订阅通知，反向数据流
实验03：做一块实时温度看板 —— 连续数值、采样周期
实验04...
Git SSH error: “Connect to host: Bad file number”
... PORT STATE SERVICE
22/tcp ***filtered*** ssh
Nmap done: 1 IP address (1 host up) scanned in 2.63 seconds
As you can see the state is Filtered, which means something is blocking it.
You can solve this by performing an SSH to port 443 (your firewall / isp will not block this).
It is...
在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术
...可以达成99.999%了。未料这个服务池最近被一个极偶然的扫描脚本全部干掉了，尽管运维工程师马上进行了处理，但是最后也较难满足1年低于5分钟中断的期望。虽然这个是个偶然的案例，但是它却是典型的黑天鹅事件。
对于系...
【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...
...装了字体选择对话框
CGdiObject类：GDI绘图工具的基类
CIPAddressCtrl类：提供了IP地址控件的功能
CImageList类：管理大小相同的图标或位图集
CMenu类：封装应用程序菜单栏和弹出式菜单
CPen类：封装了Windows图形设备接口(GDI)中的...
Apache: client denied by server configuration
...to access a directory. It is turned on by DEFAULT in the httpd.conf that ships with Apache. You can see the enabling of the feature with the directive
Require all denied
This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add t...
How to detect when WIFI Connection has been established in Android?
... really very useful. It works fine but in my case it come in onReceive multiple time in my case 4 times so my code execute multiple time.
I do some modification and make as per my requirement and now it comes only 1 time
Here is java class for Broadcast.
public class WifiReceiver extends Broadcas...