How to Install Oracle Java 9 in Ubuntu

In previous post I showed you how to install Oracle Java 8 and 7 but, come on! Oracle Java 9 it’s here and It’s stable in Ubuntu!.

This is the new and easy procedure!

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Turn off only one of many monitors

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Manual turn off the monitor, many monitors, monitors, Turn off only one monitorof many monitors, Turn off the monitor

If you have more than one monitor, you probably might to turn off one of them if it’s simply unnecesary. It’s likely that you simply turn off the monitor pushing the power button, but your computer always put a window, tool rule or message in the monitor off because it don’t have a way to know whether the monitor is off. You surely don’t want to turn off and turn on or plug in and unplug frecuently your data cable to prevent this behavior (it isn’t recommendable).

You can do this simple procedure on Ubuntu systems:

Remotely Control Your Ubuntu PC from an Android Device

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android, remote control, ubuntu, VNC

We can use our Android device (wherever they are) to connect and control your Ubuntu PC as a TV Remote and even more.

Imagine you want to turning down the noisy music but you are in another room of your house, or you left your PC turning on and your wife said to you: “Turn off the PC whether you aren’t using it and even worse you’re resting, cold or trying to sleep”.
Maybe your forget to ran something or cancel something in your PC.

That do you think if you can do this activities just using your android device wherever you are?.

CuaimaCrypt, a Strong Cryptographic Alternative

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Cryptography, CuaimaCrypt, Secure file, Strong Cryptography

I think CuaimaCrypt is one of best cypher ever designed because it have such a strong algorithm that can resist an quantum computer attacks.

For this reason, I’m currently working to supporting this project; consequently, I share this link with you in order to explain what I’m refer to.

Go to Bolivartech article: CuaimaCrypt, a Strong Cryptographic Alternative

 

Jorge Fernandes is Bachelor in Computer Science experienced in telecommunications, security, banking and programmer since 1984. He works in Valhala Networks focused on high-level decisions about scientific and technological policies and strategies of projects oriented to develop web and standalone applications, as well as smart solutions at mobiles. He always oriented to produce innovator products.

Open Terminal in Nautilus

Ubuntu is very cool but in order to be great to programmers and OS administrators I thing it will helpful to add “Open terminal here” option to Nautilus context by right-clicking menu.
The additional benefit over Ctrl+Alt+T shortcut will be a fast way to locate the new terminal prompt in the context of open Nautilus window.

Procedure:
1. Install nautilus-open-terminal package
2. Restart Nautilus

To do this, Open terminal and run:

sudo apt-get install nautilus-open-terminal
nautilus -q

Now you can be able to see “Open in terminal” option on right-clicking.

Note: In Ubuntu 16.04 LTS, this procedure isn’t necessary because Canonical finally include this functionality to the default distro.

Enjoy !.

I recommend Valhala Networks for technological and marketing issues to companies of all sizes, they know many good things with low costs using quality software.

How can I remove old kernels/install new ones when /boot is full?

Some time ago the Ubuntu 14.04 LTS Software Updater show me this error “Not enough free disk space. The upgrade needs a total of 93.1 M free space on disk ‘/boot’. Please free at least an additional 5,664 k of disk space on ‘/boot’.”

I find it strange that Canonical has removed the solution message of the original text, moreover, when I was searching the command to clean /boot (I had forgotten :-D) I found some caveman procedures, therefore, I going to show you the easy way to remove old kernels to install new ones when /boot is full.

Video: What’s a computer programmer ?

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Bill Gates, computer program, Mark Zuckerberg, Programmer, Steve Jobs

I love this video!!!
It’s a short and beautiful presentation about what’s a computer programmer with short interviews with some personalities like Bill Gates, Mark Zuckerberg, Steve Jobs, etc. What although perhaps you are a programmer I recommend you to see it.

Enjoy!!!

How to Install Oracle Java 8 or 7 in Ubuntu

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oracle java ubuntu install

In some situations you need to run applications developed in Oracle Java over Ubuntu.
If you try to do this with recommended open souce flavors like openjdk-8-jdk and/or openjdk-8-jre sometimes rise up errors or malfunctions.

You can correct this situations by installing original Oracle Java Version 7 or 8 doing this procedure in a terminal:

Ubuntu: How to set a keyboard shortcut for System Monitor

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kill process, monitor, shortcut, system, ubuntu

GNOME System Monitor

I love Ubuntu but I felt frustrated with the fact it doesn’t have a shortcut to open the GNOME System Monitor like you can do on Windows with CRTL + SHIFT + ESCAPE shotcut to open System Monitor, this is especially good when you have programs like Chrome who likes to consume memory so fast and some times it freeze and you want to kill its processes.

Don’t misunderstand me, I don’t like Windows but actually some little things are more practical.
I going to show you some alternatives: