Arturo Baldo

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  • Versión Larga – Haciendo trampa en Sad Servers – Kihei : Surely Not Another Disk Space Scenario

    Level: Medium
    Description: There is a /home/admin/kihei program. Make the changes necessary so it runs succesfully, without deleting the /home/admin/datafile file.
    Test: Running /home/admin/kihei returns Done..

    Honestamente me quedé sin ideas y terminé haciendo trampa 🤣

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    December 2, 2023
  • HACIENDO TRAMPA en Sad Servers – Kihei : Surely Not Another Disk Space Scenario

    Level: Medium
    Description: There is a /home/admin/kihei program. Make the changes necessary so it runs succesfully, without deleting the /home/admin/datafile file.
    Test: Running /home/admin/kihei returns Done..

    Honestamente me quedé sin ideas y terminé haciendo trampa 🤣

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    December 1, 2023
  • Sad Servers 16 – Lisbon : etcd SSL cert troubles

    Level: Medium
    Type: Fix
    Description: There’s an etcd server running on https://localhost:2379 , get the value for the key “foo”, ie etcdctl get foo or curl https://localhost:2379/v2/keys/foo

    Segundo intento con lo ya aprendido, ahora si salió todo bien!

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    December 1, 2023
  • Sad Servers 16 – 😵 Failed 😵 Lisbon : etcd SSL cert troubles

    Level: Medium
    Type: Fix
    Description: There’s an etcd server running on https://localhost:2379 , get the value for the key “foo”, ie etcdctl get foo or curl https://localhost:2379/v2/keys/foo

    Venia muy bieeeeen ! No llegué a tiempo por desprolijo!

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    December 1, 2023
  • Sad Servers 15 – Melbourne : WSGI with Gunicorn – Tuve que pedir ayuda

    Level: Medium

    Description: There is a Python WSGI web application file at /home/admin/wsgi.py , the purpose of which is to serve the string “Hello, world!”. This file is served by a Gunicorn server which is fronted by an nginx server (both servers managed by systemd).

    So the flow of an HTTP request is: Web Client (curl) – Nginx – Gunicorn – wsgi.py . The objective is to be able to curl the localhost (on default port :80) and get back “Hello, world!”, using the current setup.

    Yyyyy la verdad tuve que mirar las pistas, nunca me imaginé que el problema era la aplicación
    Tampoco estaba TAN errado en el fix

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 30, 2023
  • Sad Servers 15 – 😵 Failed 😵 Melbourne : WSGI with Gunicorn

    Type: Fix
    Description: There is a Python WSGI web application file at /home/admin/wsgi.py , the purpose of which is to serve the string “Hello, world!”.
    This file is served by a Gunicorn server which is fronted by an nginx server (both servers managed by systemd).
    So the flow of an HTTP request is: Web Client (curl) – Nginx – Gunicorn – wsgi.py.
    The objective is to be able to curl the localhost (on default port :80) and get back “Hello, world!”, using the current setup.

    Efectivamente este desafío me superó y no pude en el primer intento, vamos por otra oportunidad

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 30, 2023
  • Sad Servers 14 : Oaxaca – Close an Open File – A investigar !

    Level: Medium

    Type: Fix

    Access: Email

    Description: The file /home/admin/somefile is open for writing by some process. Close this file without killing the process.

    Personalmente me superó – pero nada que no se pueda investigar un poco – estaba casi casi en lo cierto 😀

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 28, 2023
  • Sad Servers 13 – Venice : Am I in a container?

    Level: Medium

    Description: Try and figure out if you are inside a container (like a Docker one for example) or inside a Virtual Machine (like in the other scenarios).

    Explorando diferentes maneras de chequear si estamos en un contenedor, honestamente muchas no las conocía

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 28, 2023
  • Sad Servers 12 – Salta : Docker container won’t start

    Level: Medium

    Description: There’s a “dockerized” Node.js web application in the /home/admin/app directory. Create a Docker container so you get a web app on port :8888 and can curl to it. For the solution to be valid, there should be only one running Docker container.

    Muy divertido en mi caso, toco Docker de oído pero nada que no se pueda solucionar con un poco de Google y sentido común

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 28, 2023
  • Sad Servers 10 – 😵 Failed 😵 Tokyo : can’t serve web file

    Level: Medium

    Type: Fix

    Access: Public

    Description: There’s a web server serving a file /var/www/html/index.html with content “hello sadserver” but when we try to check it locally with an HTTP client like curl 127.0.0.1:80, nothing is returned. This scenario is not about the particular web server configuration and you only need to have general knowledge about how web servers work.

    No logré terminarlo en este intento pero creo que estamos cerca !!

    – YouTube https://www.youtube.com/@cceste
    – Instagram https://www.instagram.com/ccesteok
    – Facebook https://www.facebook.com/ccesteok
    – Discord https://discord.gg/ZWQVg7cgdR

    November 28, 2023
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Arturo Baldo

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