Tag: Linux

#RaspberryPi – Using “please” instead of “sudo”, a very Canadian command line of work for #Linux

Hi!

I’ll write this down, so I don’t forget in the near future. I’m not a Linux user, and that’s amazing. Every day I learn something new, mostly while I’m working with Python, Visual Studio Code and Raspberry Pi.

So, I received a couple of brand new Raspberry Pi 4, and now it’s time to test them. And of course, most of this job is via SSH / command line. I’m not an expert (yet) on Raspberry Pi user permissions, however I started to realize when I need to use “sudo” to get things done.

If you search for sudo definition, you may find something similar to this one:

Sudo stands for either “substitute user do” or “super user do” (depending upon how you want to look at it)

https://www.lifewire.com/what-is-sudo-2197466

Today, I’ve learned the power of the “alias” command, and how it can be used to have a more polite conversation with my device. In example, I can create an alias for sudo, named “please” and then this happen.

alias please="sudo"

This is a very polite way to display my Raspberry Pi4 CPU information

raspbery pi 4 using please instead of sudo display cpu information

Or another polite way to display Disk information for the Raspberry Pi 4

raspbery pi 4 using please instead of sudo display disk information

You get the idea.

Happy Coding!

Greetings @ Toronto

El Bruno

Twitter source

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#Windows10 – A bit of Windows Subsystem For Linux, and some interesting IP addresses [1e100.net]

Hi!

These days I’ve been working in my home network. Now that we have many devices connected, I begin to see traces that are strange to me. Generally, it is usually something expected, like for example open ports by games of my children friends connected to my home network, however, the following scenario was funny for me.

Well, it all started when I saw in the traces a lot of activity with this data.

Destination URL or IP address: 173.194.193.188

Service or port number: 5228

 

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Usually, the next step is a command prompt and [nslookup] to view the host for this IP. However, now that Windows 10 allows us to use in Linux almost in native mode, I launched my Ubuntu instance and thanks to [Windows Subsystem For Linux] I was able to use the command [Dig], which is a very cool Linux tool. This is the perfect excuse to learn and use something new 😀

This is what I found: Traffic is performed in the domain 1e100.net

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This is at least curious. Like this That the following was to find out if there are any Apps That use that port and that domain. This is as simple as doing a Google search for https://www.google.com/search?q=ip%09173.194.193.188%09%09port+5228

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And here begins the interesting results. I leave it in item a item, where he was more and more surprised:

  • First of all, this port seems to be used a lot from Chrome in Apps Like Google Drive, Chrome Remote Desktop and other Google apps
  • Google Apps? It makes sense because the domain 1e100.net is owned by Google !!!

And this is where I dropped my face, after trying to explain why the domain name, I read the following

1e100 means 1 E 100. 1 * 10 ^ 100. The number, which is named Googol, where Google gets the name from !!!

Well, look, you got a new geek data to share with friends this weekend

Happy Coding!

Greetings @ Toronto

El Bruno

References

#Windows10 – Un poco de Windows Subsystem for Linux, y algunas IPs interesantes de conocer! [1e100.net]

Buenas!

Durante estos días he estado poniendo un poco de orden en la red interna de mi casa. Ahora que tenemos muchos Devices conectados, empiezo a ver trazas que me resultan extrañas. Por lo general, suele ser algo esperado, como por ejemplo puertos abiertos por juegos de amigos de mis niños que se conectan a la red, sin embargo, el siguiente escenario me llamo mucho la atención.

Todo comenzó cuando vi en las trazas bastante actividad con estos datos.

Destination URL or IP address: 173.194.193.188

Service or port number: 5228

 

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El siguiente paso es utilizar [nslookup] para ver el host de esta IP. Sin embargo, ahora que Windows 10 nos permite utilizar in Linux casi en modo nativo, pues lancé mi instancia de Ubuntu y gracias a [Windows Subsystem for Linux] pude utilizar el comando [dig], que es propio de Linux.

Esto es lo que me encontré: el tráfico se relaciona con el dominio 1e100.net

 

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Esto es por lo menos curioso. Así que lo siguiente fue averiguar si hay algunas apps registradas que utilicen ese puerto y ese dominio. Esto es tan simple como realizar una búsqueda en Google por https://www.google.com/search?q=ip%09173.194.193.188%09%09port+5228

I3

Y aquí comienza lo interesante. Lo dejo en Item a Item, donde cada vez estaba más sorprendido:

  • En primer lugar, este puerto parece que se utiliza mucho desde Chrome en apps como Google Drive, Chrome Remote Desktop y otras Apps de Google
  • Google Apps? Tiene sentido ya que el dominio 1e100.net es de Google

Y aquí fue donde se me cayó la cara, después de intentar explicarme el porque del nombre del dominio, leo lo siguiente

1e100 means 1 E 100. 1 * 10 ^ 100. The number, which is named Googol, where Google gets the name from !!!

Pues mira, ya tienes un dato friki para compartir con amigos

Happy Coding!

Saludos @ Toronto

El Bruno

References

#Humor – Somehow #Intel #Meltdown and #Spectre issues, show up an amazing Intel vs AMD code in the #Linux Kernel

Hi!

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Greetings @ Burlington

El Bruno

Source

 

 

 

 

#Podcast – NTN 32 – .Net Core and some experiences using Dev tools in the real world

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Hi !

Today I have the placer to speak again with Juan Luis Guerrero (@JuanLuElGuerre), and this time he will share with us some of his experiences in a new adventure in Sevilla. This new adventure is cool to share because he is using a lot of cool new technologies, and he moved on from the “Hello World” stage a long time ago. So, JuanLu will share with us some of his experiences using, configuring, deploying, and testing .NET Core in different environments like Windows Core, Linux and more.

We will also speak about other products and tools like Sonar, XUnit instead of MSTest, Test Manager, Linux and Docker, and more.

I hope you enjoy the SPANISH episode. Podcast Link

Greetings @ Burlington

El Bruno

References

#Podcast – NTN 32 – .Net Core y el estado de algunas herramientas de desarrollo al día de hoy

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Hola !

Hoy vuelvo a hablar con Juan Luis Guerrero (@JuanLuElGuerre), y esta vez para que me comente como está llevando una nueva aventura en Sevilla. Lo interesante de esta experiencia, es que está utilizando muchas tecnologías “nuevas” y tiene un punto de vista particular sobre la mismas. En otras palabras, hace un rato largo que ha pasado de la etapa del “Hola Mundo” y está viviendo en su propia piel la utilización, configuración y despliegue de algunas soluciones como .NET Core en Linux.

En el camino caen otros temas como la utilización de Sonar, XUnit en lugar de MSTest, Test Manager, Linux y Docker, y el porqué no de Linux y Windows Core, y mu8chos otros temas más.

Espero que lo disfruten. Podcast Link

Saludos @ Burlington

El Bruno

References

#Podcast – Novedades desde Connect 2016: Google, Linux, .Net Foundation, Samsung TVs, Visual Studio 2017, Visual Studio for Macs y más !

Hola !

Hoy toca repasar las novedades del Connect 2016. El formato es podcast rápido, lo haré solo yo (lo tenía pendiente) y me doy el gusto de opinar un poco sobre lo que más me ha llamado la atención del evento.

Temas como Google uniéndose a .Net Foundation, Microsoft anunciando que es Platinum support en Linux Foundation, el soporte para el desarrollo de apps para Tizen (Samsung TVs!), y por último todo lo nuevo en la familia de Visual Studio: Visual Studio 2017 RTM, Visual Studio Mobile Center y Visual Studio for Mac.

Esta vez tiene más sentido que nunca los materiales de referencia, así que recomiendo ver el post relacionado a este podcast para ver todos los links .

Y de bonus, los 136 videos que se grabaron en Connect 2016 de forma gratuita en Channel 9 (link)

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Espero que lo disfruten. Podcast Link

Saludos @ Toronto

El Bruno

References

#Humor – #Microsoft, #Linux and #Apple in a single tweet

Hi !

In case you can´t read the tweet

-Microsoft joins Linux foundation.
-Google joins .NET foundation.
-Apple releases a $300 book of product photos.

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Greetings @ Toronto

El Bruno

Source: Tweet

#VisualStudio – Visual Studio for Mac, a new family member (Bonus: Linux Foundation!)

Hello!

Do you remember when Visual Studio was all you needed to create applications? It still the single tool you need. However now, you have several flavors to choose to depend on the application type, and your development style. Today at Microsoft Connect they confirmed the launch of Visual Studio for Mac.

However, it seems that behind this Visual Studio there is an old friend: Xamarin Studio (remember that Microsoft acquired Xamarin some time ago, link, this step was the natural one). IMHO, I I shall refuse to name it as “Visual Studio for…” until has support TFS integration.

And now, you can read the current status of the Visual Studio family and also a short description of each product in the notes below. But before, I think is good to share a couple of clarifications, because I have already read some posts where you begin to talk about issues without having clear some concepts:

  • It is true that now on Mac there are 2 options: Visual Studio and Visual Studio Code for Mac. However one is an IDE and the other one is a code editor.
  • Visual Studio Code as a code editor, and is he has matured much since the V1. However, I think that still can be clearly the distinction between IDE and Code Editor.
  • The same imitation of Mac could be done on Windows, where we have Visual Studio Code and Visual Studio 2017 RC (or release Visual Studio 2015)

Visual Studio Family

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Visual Studio 2017 RC focuses on improved productivity, refined fundamentals (performance improvements across all areas in VS 2017), streamlined cloud development, and great mobile development. To learn more, read the details in John Montgomery’s post announcing Visual Studio 2017 RC. The download is available here.

Visual Studio for Mac is a new Visual Studio IDE. It’s built from the ground up for the Mac and focuses on full-stack, client-to-cloud native mobile development, using Xamarin for Visual Studio, ASP.Net Core, and Azure. To learn more, read Miguel de Icaza’s blog post introducing Visual Studio for Mac. The download is available from here.

Visual Studio Mobile Center is “mission control for mobile apps.” It brings together multiple services commonly used by mobile developers into a single, integrated service that allows you to build, test, deploy, and monitor cloud attached apps in one place. To learn more, please read Nat Friedman’s blog post elaborating on Visual Studio Mobile Center.

Team Foundation Server 2017 RTM and Visual Studio Team Services is bringing general availability to Application Insights, Package Management service, Code Search, and 3rd party commerce to on-premises extensions. To learn more, please read Brian Harry’s blog post. Get started here.

Bonus and shock :

Microsoft joins the Linux Foundation

Greetings @ Toronto

El Bruno

References

#Humor – Happy 25th birthday #Linux !!

Hi

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Greetings @ Toronto

El Bruno

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