# Download and Install the Latest Updates for the OS | |
apt-get update && apt-get upgrade -y | |
# Set the Server Timezone to CST | |
echo "America/Chicago" > /etc/timezone | |
dpkg-reconfigure -f noninteractive tzdata | |
# Enable Ubuntu Firewall and allow SSH & MySQL Ports | |
ufw enable | |
ufw allow 22 |
# Assuming an Ubuntu Docker image | |
$ docker run -it <image> /bin/bash |
When hosting our web applications, we often have one public IP
address (i.e., an IP address visible to the outside world)
using which we want to host multiple web apps. For example, one
may wants to host three different web apps respectively for
example1.com
, example2.com
, and example1.com/images
on
the same machine using a single IP address.
How can we do that? Well, the good news is Internet browsers
" Toggle spellchecking | |
function! ToggleSpellCheck() | |
set spell! | |
if &spell | |
echo "Spellcheck ON" | |
else | |
echo "Spellcheck OFF" | |
endif | |
endfunction |
var mediaJSON = { "categories" : [ { "name" : "Movies", | |
"videos" : [ | |
{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org", | |
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ], | |
"subtitle" : "By Blender Foundation", | |
"thumb" : "images/BigBuckBunny.jpg", | |
"title" : "Big Buck Bunny" | |
}, | |
{ "description" : "The first Blender Open Movie from 2006", | |
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ], |
Below are the Big O performance of common functions of different Java Collections. | |
List | Add | Remove | Get | Contains | Next | Data Structure | |
---------------------|------|--------|------|----------|------|--------------- | |
ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array |
import java.io.FileDescriptor; | |
import java.io.FileOutputStream; | |
import java.io.IOException; | |
import java.io.OutputStream; | |
import java.io.PrintStream; | |
public class HelloWorld{ | |
private static HelloWorld instance; | |
public static void main(String[] args){ | |
instantiateHelloWorldMainClassAndRun(); |
Nice answer on stackoverflow to the question of when to use one or the other content-types for POSTing data, viz. application/x-www-form-urlencoded
and multipart/form-data
.
“The moral of the story is, if you have binary (non-alphanumeric) data (or a significantly sized payload) to transmit, use multipart/form-data
. Otherwise, use application/x-www-form-urlencoded
.”
Matt Bridges' answer in full:
The MIME types you mention are the two Content-Type
headers for HTTP POST requests that user-agents (browsers) must support. The purpose of both of those types of requests is to send a list of name/value pairs to the server. Depending on the type and amount of data being transmitted, one of the methods will be more efficient than the other. To understand why, you have to look at what each is doing