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Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <winnt.h>
#define PING_TIMES 2 //ping 4 次
typedef struct _IPINFO
{
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Service
unsigned char IPFlags; // IP flags
unsigned char OptSize; // Size of options data
unsigned char FAR *Options; // Options ...
What is the largest TCP/IP network port number allowable for IPv4?
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@JessieArr Most IP stacks use a tuple of Source IP address, Source port, Destination IP address and Destination port as a unique identifier for connections. This means that a server can have many many more active connections than there are a...
How can I redirect HTTP requests made from an iPad?
Since on an iPad we cannot edit the hosts file (without jailbreaking), how can we arbitrarily redirect web traffic to another url?
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Lost connection to MySQL server at 'reading initial communication packet', system error: 0
...ggests that it might be because the MySQL server is bound to the loop-back IP (127.0.0.1 / localhost) which effectively cuts you off from connecting from "outside".
If this is the case, you need to upload the script to the webserver (which is probably also running the MySQL server) and keep your se...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...用“连接”这一点是为了描述模型工作的实际情况，即使IP多播或UDP等无连接的底层传输亦是如此。 第2点说明所有拓扑里的应用程序应该就什么达成一致：正被传送的消息(比如“这是一张需调整尺寸的图片”或“这是调整后的...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一份到自己的数据缓存中。
Squid代理服务器工作在TCP/IP的应用层。
1.2 Squid 分类
按照代理类型的不同，可以将Squid 代理分为正向代理和反向代理，正向代理中，根据实现方式的不同，又可以分为普通代理和透明代理。
普...
How Can I Download a File from EC2 [closed]
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Use scp:
scp -i ec2key.pem username@ec2ip:/path/to/file .
where:
ec2key.pem is your PEM key
username is the username you log in with
ec2ip is the IP or DNS alias of the instance
/path/to/file is the location where the file is stored
This will copy the file i...
ssh: The authenticity of host 'hostname' can't be established
...prompts to say "yes" or "no". This cause some trouble when running from scripts that automatically ssh to other machines.
1...
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...
libcurl网络连接使用tcp/ip - C/C++ - 清泛网 - 专注C/C++及内核技术
libcurl网络连接使用tcp/iplibcurl网络连接使用tcp ip，部分代码如下：CURL *curl;CURLcode res;const char *request = "GETas.xxxxE测试发送"; curl_socket_t sockfd; * socket * ...部分代码如下：
CURL *curl;
CURLcode res;
const char *request = "GETas.xxxxE测试发送";
...