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How do I find the authoritative name-server for a domain name?
...or a given domain name, and this is how you accomplish it using the universally available nslookup command line tool:
command line> nslookup
> set querytype=soa
> stackoverflow.com
Server: 217.30.180.230
Address: 217.30.180.230#53
Non-authoritative answer:
stackoverflow.com...
The calling thread cannot access this object because a different thread owns it
...
To add my 2 cents, the exception can occur even if you call your code through System.Windows.Threading.Dispatcher.CurrentDispatcher.Invoke(). The point is that you have to call Invoke() of the Dispatcher of the control that you're trying to access, which in some cases may not be ...
How to programmatically get iOS status bar height
...ues. Is it possible to figure out the height of the status bar programmatically?
14 Answers
...
How to stop mongo DB in one command
...h as data corruption) and talks about the different kill signals.
Additionally, if you have installed MongoDB using a package manager for Ubuntu or Debian then you can stop mongodb (currently mongod in ubuntu) as follows:
Upstart: sudo service mongod stop
Sysvinit: sudo /etc/init.d/mongod...
How to leave a message for a github.com user
...ut the author of the change or the one who accepted it.
Provided you're really dying to exchange with user user_test
Display the public activity page of the user: https://github.com/user_test?tab=activity
Search for an event stating "user_test pushed to [branch] at [repository]". There are usuall...
Why is Linux called a monolithic kernel?
...
A monolithic kernel is a kernel where all services (file system, VFS, device drivers, etc) as well as core functionality (scheduling, memory allocation, etc.) are a tight knit group sharing the same space. This directly opposes a microkernel.
A microkernel prefe...
implements Closeable or implements AutoCloseable
...ources which needs to be closed.
In your implementation, it is enough to call pw.close(). You should do this in a finally block:
PrintWriter pw = null;
try {
File file = new File("C:\\test.txt");
pw = new PrintWriter(file);
} catch (IOException e) {
System.out.println("bad things happen")...
What are -moz- and -webkit-? [duplicate]
..., Safari; -moz for Firefox, -o for Opera, -ms for Internet Explorer). Typically they're used to implement new, or proprietary CSS features, prior to final clarification/definition by the W3.
This allows properties to be set specific to each individual browser/rendering engine in order for inconsist...
Pushing to Git returning Error Code 403 fatal: HTTP request failed
...
change it from url=https://MichaelDrogalis@github.com/derekerdmann/lunch_call.git to url=git@github.com/derekerdmann/lunch_call.git. that is, change all the texts before @ symbol to ssh://git
Save config file and quit. now you could use git push origin master to sync your repo on GitHub
...
Java 8 Distinct by property
...ey(Person::getName))
Note that if the stream is ordered and is run in parallel, this will preserve an arbitrary element from among the duplicates, instead of the first one, as distinct() does.
(This is essentially the same as my answer to this question: Java Lambda Stream Distinct() on arbitrary ...