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How to stop and restart memcached server?
... is currently runing:
sudo ps -e | grep memcached
And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it:
netstat -ap | grep TheChosenPort#
netstat -ap | grep 11211
For some Linuxes you need to change your commands like:
sudo /etc/init.d/memcached start
sudo /e...
What is the strict aliasing rule?
...appening(live example):
foo(float*, int*): # @foo(float*, int*)
mov dword ptr [rsi], 1
mov dword ptr [rdi], 0
mov eax, 1
ret
The optimizer using Type-Based Alias Analysis (TBAA) assumes 1 will be returned and directly moves the constant value into register eax which carri...
Git SSH error: “Connect to host: Bad file number”
...this by typing
$nmap -sS github.com -p 22
Starting Nmap 5.35DC1 ( http://nmap.org ) at 2011-11-05 10:53 CET
Nmap scan report for github.com (207.97.227.239)
Host is up (0.10s latency).
PORT STATE SERVICE
22/tcp ***filtered*** ssh
Nmap done: 1 IP address (1 host up)...
When should one use a 'www' subdomain?
...L, it's easier to handwrite and type "www.stackoverflow.com", rather than "http://stackoverflow.com". Most text editors, email clients, word processors and WYSIWYG controls will automatically recognise both of the above and create hyperlinks. Typing just "stackoverflow.com" will not result in a hype...
Artificially create a connection timeout error
...hen, modify you service to call whatever it usually does to that port e.g. http://localhost:8099/some/sort/of/endpoint
Then, your service will open the connection and write data, but will never get a response, and so will give you a Read Time Out (rather than Connection Refused)
...
Express.js: how to get remote client address
... request was originally from in a proprietary fashion (for example, custom http header). In such case, this answer would not work. There may be a custom way to get that information out, but you need to first understand the mechanism.
...
可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <pwd.h>
static void func(int signo)
{
struct passwd *rootptr;
if( ( rootptr = getpwnam( "root" ) ) == NULL )
{
err_sys( "getpwnam error" );
}
signal(SIGALRM,func);
alarm(1);
}
int main(int argc, char** argv)
{
signal(SIGALRM,func);
a...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...F add eax, 18h
769AEFF2 inc dword ptr [eax] ; tagSOleTlsData.dwReserved1[0]++;
769AEFF4 cmp [eax], esi
769AEFF6 jnz loc_769ADBF9 ; 判断tagSOleTlsData.dwReserv...
How do I convert from stringstream to string in C++?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
When to use DataContract and DataMember attributes?
...
Also when you call from http request it will work properly but when your try to call from net.tcp that time you get all this kind stuff
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