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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
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C10k is 10 years old and no longer fun. [Read this] to see how C1024K can be tackled.
– Chandranshu
Nov 11 '13 at 19:11
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Xcode duplicate/delete line
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Found more information on Apple's developer site.
– aleclarson
Feb 25 '14 at 18:24
soun...
Objective-C for Windows
...S is in your PATH)
Use this simple "Hello World" program to test GNUstep's functionality:
#include <Foundation/Foundation.h>
int main(void)
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSLog(@"Hello World!.");
[pool drain];
return;
}
Go back to the command pro...
What are the uses of the exec command in shell scripts? [closed]
...a different shell to the one in /etc/passwd. Stupid as it may seem, some sites do not allow users to alter their sign-in shell. One site I know had everyone start with csh, and everyone just put into their .login (csh start-up file) a call to ksh. While that worked, it left a stray csh process r...
Is there a way to make mv create the directory to be moved to if it doesn't exist?
... @Leffler, Not true -- I know bash supports more than 9 arguments (using ${123} is one method). I don't know Perl, so feel free to make an answer yourself. =]
– strager
Feb 13 '09 at 22:06
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Singleton with Arguments in Java
...(x);
return singleton;
}
}
Then you can call Singleton.init(123) once to configure it, for example in your app startup.
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Hashing a string with Sha256
...u don't use the same string encoding. The link you put for the on-line web site that computes SHA256 uses UTF8 Encoding, while in your example you used Unicode Encoding. They are two different encodings, so you don't get the same result. With the example above you get the same SHA256 hash of the lin...
Calling a parent window function from an iframe
... a specific target discloses the data you send to any interested malicious site (comment by ZalemCitizen).
References:
Cross-document messaging
Window.postMessage()
Can I Use
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How do you make sure email you send programmatically is not automatically marked as spam?
...e belong together, and to prevent spoofing of your domain name. The SPF website includes a wizard to generate the DNS information for your site.
Check your reverse DNS to make sure the IP address of your mail server points to the domain name that you use for sending mail.
Make sure that the IP-add...
How to enable CORS in AngularJs
...king the request to has to implement CORS to grant JavaScript from your website access. Your JavaScript can't grant itself permission to access another website.
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