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WARNING: UNPROTECTED PRIVATE KEY FILE! when trying to SSH into Amazon EC2 Instance
...my key file permission to 600.
sudo chmod 600 /path/to/my/key.pem
Link : http://stackabuse.com/how-to-fix-warning-unprotected-private-key-file-on-mac-and-linux/
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How do I find the last occurrence of a substring in an NSString?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Android RatingBar change star colors [closed]
...<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background" android:drawable="@drawable/red_star_empty" />
<item android:id="@android:id/secondaryProgress" android:drawable="@dra...
Find mouse position relative to element
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A good write up of the difficulty of this problem can be found here: http://www.quirksmode.org/js/events_properties.html#position
Using the technique that is described there you can find the mouses position in the document. Then you just check to see if it is inside the bounding box of your e...
How do I use HTML as the view engine in Express?
...ou can use ejs view engine while keeping your view files as .html
source: http://www.makebetterthings.com/node-js/how-to-use-html-with-express-node-js/
You need to install this two packages:
`npm install ejs --save`
`npm install path --save`
And then import needed packages:
`var path = require...
How do I monitor the computer's CPU, memory, and disk usage in Java?
...
Have a look at this very detailled article:
http://nadeausoftware.com/articles/2008/03/java_tip_how_get_cpu_and_user_time_benchmarking#UsingaSuninternalclasstogetJVMCPUtime
To get the percentage of CPU used, all you need is some simple maths:
MBeanServerConnection mb...
How do I position one image on top of another in HTML?
...green solid;
}
<div class="parent">
<img class="image1" src="https://placehold.it/50" />
<img class="image2" src="https://placehold.it/100" />
</div>
As the simplest solution. That is:
Create a relative div that is placed in the flow of the page; place the b...
How do I import a namespace in Razor View Page?
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I found this http://weblogs.asp.net/mikaelsoderstrom/archive/2010/07/30/add-namespaces-with-razor.aspx which explains how to add a custom namespace to all your razor pages.
Basically you can make this
using Microsoft.WebPages.Compilatio...
How to uninstall Python 2.7 on a Mac OS X 10.6.4?
...lled by the Python 2.7 install package. I've got the install package from http://www.python.org/ . What directories/files/configuration file entries do I need to remove? Is there a list somewhere?
...
jQuery ajax error function
...
error(jqXHR, textStatus, errorThrown)
http://api.jquery.com/jQuery.ajax/
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