He then mapped those differences, showing places where the 2016 mosaic was brighter in blue, and places that had dimmed in pink. Nelson, a cartographer at the mapping-software company Esri, compared the equivalent pixels on two different maps and calculated the difference by subtracting the brightness value of one from the other. “So I thought a change-detection map would let me see that really easily, in one go.” and was fascinated by where things had changed,” he says. NASA’s image sliders, which show a spot of Earth from both of those time periods, revealed changes in the quantity or brightness of lights. ![]() But these images can also reveal clues about what the humans on Earth are up to, and how that is changing.Įarlier this month, when NASA released a new global mosaic of Earth’s night-lights based on images collected throughout 2016, cartographer John Nelson was intrigued by the comparison with the 2012 mosaic. ![]() The ghostly outlines of continents, laced with webs of light, are beautiful and eerily peaceful. ![]() Looking at Earth at night from space turns the planet’s extremely varied and complex surface into a much simpler view of light and dark.
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![]() Examples of applications that use Java are numerous and widespread but include web browsers, office applications and even mainstream games like Minecraft are based on Java. Java is a programming language and software platform. ![]() Why would you need the JDK then? Because the application server will convert JSP into Java servlets and needs to use the JDK to compile the servlets. For example, if you are deploying a web application with JSP, you are technically just running Java programs inside the application server. Sometimes, even if you are not planning to do any Java development on a computer, you still need the JDK installed. ![]() The new license permits certain uses, such as personal use and development use, at no cost – but other uses authorized under prior Oracle JDK licenses may no longer be available. The new Oracle Technology Network License Agreement for Oracle Java SE is substantially different from prior Oracle JDK licenses. It is capable of creating and compiling programs. It has everything the JRE has, but also the compiler (javac) and tools (like javadoc and jdb). The JDK is the Java Development Kit, the full-featured SDK for Java. ![]()
![]() The stable version of phpMyAdmin at the time this article was written: phpMyAdmin 4.3.11.1 (released ). Step 2: Download Latest Version of phpMyAdmin In this case, we’ll need to put the phpMyAdmin files in /var/www/html. ![]() We need to find Apache’s DocumentRoot so we know where to place our phpMyAdmin files: $ grep DocumentRoot /etc/apache2/sites-available/nf While it’s not recommended for production servers, because you have to manually ensure your install of phpMyAdmin is kept up-to-date, you can also install phpMyAdmin from source. Now if you try to access the phpMyAdmin login, you’ll get the. htaccess credentials, you can create additional secure users with: sudo htpasswd /etc/phpmyadmin/.htpasswd anotheruser If for some reason you wanted to give others access to the phpMyAdmin login screen but didn’t want them using your. Now we can create a secure user for our phpMyAdmin application with the command: $ sudo htpasswd -c /etc/phpmyadmin/.htpasswd phpmyadmin If you don’t already have this installed, use the following: sudo apt-get install apache2-utils htpasswd File for Authenticationįirst we need the htpasswd utility. Now that we’ve enabled overrides for our phpMyAdmin application from Apache, we need to actually create an override with an. Restart Apache so our changes take affect: sudo service apache2 restart Step 3: Create an. Step 2: Restart Apache to Accept Config Changes We want to edit the phpMyAdmin Apache config that was created earlier: sudo vi /etc/apache2/conf-available/nfĪdd AllowOverride “ALL” directive below the DirectoryIndex: We can easily secure our phpMyAdmin installation by using Apache’s built-in. Naturally, because phpMyAdmin is such a common application installed on many web servers, it is a popular target for unauthorized access attempts. |
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