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Is there a way for multiple processes to share a listening socket?
...ngle socket descriptor from the set of descriptors that the
worker was watching for events from.
If the triggered event corresponds to a new incoming connection,
NGINX accepts the connection from the listening socket. Then, it
associates a context data structure with the file des...
Authenticating in PHP using LDAP through Active Directory
...tallations of AD will bind successfully if the password provided is empty. Watch out for this! You may need to ensure a non-empty password before trying to authenticate.
– diolemo
Oct 20 '11 at 16:32
...
How to prevent robots from automatically filling up a form?
...
Watch out if you want to allow end users to use automatic form fillers such addons.mozilla.org/en-US/firefox/addon/1882 that may allow very fast submission. As well as captcha any thing annoying the final user is generally no...
Retain precision with double in Java
...xed power of 10 and use int or long (addition and subtraction are trivial: watch out for multiplication).
However, if you are happy with binary for the calculation, but you just want to print things out in a slightly friendlier format, try java.util.Formatter or String.format. In the format string ...
What is Cache-Control: private?
...Last-Modified, the browser has to perform a request If-Modified-Since, and watch for a 304 Not Modified response
if you specified max-age, the browser won't even have to suffer the network round-trip; the content will come right out of the caches
The difference between "Cache-Control: max-age" and...
Ruby send vs __send__
...ethods the class being manipulated defines. It could have overriden send.
Watch:
class Foo
def bar?
true
end
def send(*args)
false
end
end
foo = Foo.new
foo.send(:bar?)
# => false
foo.__send__(:bar?)
# => true
If you override __send__, Ruby will emit a warning:
warnin...
Logging levels - Logback - rule-of-thumb to assign log levels
..., like a result of an if statement
debug: variable contents relevant to be watched permanently
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How do I create a namespace package in Python?
...ns a global list of all package namespaces created with that function, and watches sys.path. When sys.path changes it checks if that affects the __path__ of any namespace, and if it does then it updates those __path__ properties.
– Arthur Tacca
Jan 12 '17 at 9:...
How to make Java honor the DNS Caching Timeout?
...a 30 second caching time max when running the following code snippet while watching port 53 activity using tcpdump.
/**
* http://stackoverflow.com/questions/1256556/any-way-to-make-java-honor-the-dns-caching-timeout-ttl
*
* Result: Java 6 distributed with Ubuntu 12.04 and Java 7 u15 downloaded f...
Can I assume (bool)true == (int)1 for any C++ compiler?
...o values - true and false with corresponding values 1 and 0.
The thing to watch about for is mixing bool expressions and variables with BOOL expression and variables. The latter is defined as FALSE = 0 and TRUE != FALSE, which quite often in practice means that any value different from 0 is conside...