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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
... client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
< client > < server >
Inside the TCP stack, these four fields are used as a compou...
Differences between “java -cp” and “java -jar”?
...the first version to start a java application just because it has less pitfalls ("welcome to classpath hell"). The second one requires an executable jar file and the classpath for that application has to be defined inside the jar's manifest (all other classpath declaration will be silently ignored.....
How to keep the local file or the remote file during merge using Git and the command line?
...
This approach seems more straightforward, avoiding the need to individually select each file:
# keep remote files
git merge --strategy-option theirs
# keep local files
git merge --strategy-option ours
or
# keep remote files
git pull -Xtheirs
# keep local files
git pull -Xours
Copied direct...
Why do I get a warning icon when I add a reference to an MEF plugin project?
... Studio 2017 with update 15.3 has still not addressed the issue of not actually showing a meaningful message. Very annoying.
– Greg R Taylor
Sep 12 '17 at 11:38
4
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...doThisMostOfTheTime)()
...looks like it ought to be faster, but it's actually slower than the if ... elif ... else construct, because it has to call a function, which can be a significant performance overhead in a tight loop.
Consider these examples...
1.py
something = 'something'
for i in xra...
What is the meaning of prepended double colon “::”?
...space you're currently in. For instance, if you had two different classes called Configuration as such:
class Configuration; // class 1, in global namespace
namespace MyApp
{
class Configuration; // class 2, different from class 1
function blah()
{
// resolves to MyApp::Configur...
What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep
...f you don't override it, the user will get a ThreadExceptionDialog. Which allows him to ignore the exception and keep running your program. Not a great idea btw.
You can disable this behavior by calling Application.SetUnhandledExceptionMode() in the Main() method in Program.cs. Without that back...
Where does the “flatmap that s***” idiomatic expression in Scala come from?
...t you can replace a lot of tedious if/then/else code you would write with calls to flatMap (and other higher order functions).
This is especially true for Options (see http://tonymorris.github.io/blog/posts/scalaoption-cheat-sheet/)
But it applies to other monads as well (although I have to admit...
Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
...
What is difference between monolithic and micro kernel?
...ing entirely in a single address space. It is a single static binary file. All kernel services exist and execute in the kernel address space. The kernel can invoke functions directly. Examples of monolithic kernel based OSs: Unix, Linux.
In microkernels, the kernel is broken down into separate proc...