a journal of interesting technical ideas . . . a journal of interesting technical ideas . . .
This is a long post, but most of it is file contents. Keep reading!
GNS3 appliance files are descriptions of virtual machines used in network simulations. The appliance files have suffixes of .gns3a and are included with the GNS3 download. You can update the files and create new ones. The goal of this article is to walk through the process of working with appliance files and contributing them back to the community.
On a personal note, submitting a new GNS3 appliance was the first time I contributed to an open-source project. I’m still learning, but a few years ago I knew nothing. Jeremy Grossman, with GNS3, was patient and helped me understand the process of using Git. Contributing - even in this minor way - was a real high for me and I’d love for you to be able to share that feeling and contribute to this and other projects. GNS3a was my “gateway drug” into being a contributor and not just a consumer of open source.
One of the files I’ve contributed is the Security Onion appliance. Security Onion is a Linux distribution that focuses on security tools. Below is the current version (9/1/20) of the GNS3A file. Before we create a new appliance, let’s update this one.
¿Dónde ver Spirit: El corcel indomable película completa en español?
: Un joven nativo americano que respeta la naturaleza salvaje de Spirit y se gana su confianza a través de la paciencia y el afecto.
La trama nos transporta al Salvaje Oeste estadounidense del siglo XIX. Spirit es un semental mustang salvaje, líder de su manada, que representa la libertad, la fuerza y la indomable naturaleza del oeste. Su vida cambia drásticamente cuando es capturado por la caballería de los Estados Unidos.
Para disfrutar de Spirit: El Corcel Indomable en español, te recomendamos buscarla en las plataformas de streaming oficiales, ya que garantizan la mejor calidad de imagen y sonido.
Al ser una producción de DreamWorks (NBCUniversal), a menudo está disponible en esta plataforma. spirit+el+corcel+indomable+pelicula+completa+ver+en+espanol
El clásico de animación del año 2002, ( Spirit: Stallion of the Cimarron ), continúa siendo una de las películas más queridas por el público de todas las edades. Producida por DreamWorks Animation, esta obra maestra destaca por su increíble banda sonora a cargo de Bryan Adams y Hans Zimmer, además de una animación tradicional espectacular.
La película nos lleva a un mundo donde la libertad y la aventura son los valores supremos. La historia gira en torno a Spirit, un corcel potro de un blanco impecable con una estrella en la frente, que nace en un valle próspero y hermoso. Desde su nacimiento, Spirit se siente atraído por la inmensidad del mundo más allá de su hogar, impulsado por una sed insaciable de libertad y exploración.
Ya sea que la veas con tus hijos, para recordar tu infancia, o por primera vez, prepárate para llorar, sonreír y cantar "Here I Am" (aquí estoy) a todo pulmón. No esperes más: abre tu plataforma favorita (revisa Amazon Prime o Apple TV), ajusta el idioma a español, y déjate llevar por el galope indomable de Spirit.
: El protagonista de nuestra historia, un corcel con un corazón valiente y un deseo insaciable de libertad. Su voz en inglés, interpretada por Matt Damon, y en español por Mario Cervera, le da vida y emoción. ¿Dónde ver Spirit: El corcel indomable película completa
La banda sonora es, sin duda, la mitad de la película. Bryan Adams compuso y cantó las canciones originales, y la versión en español latino mantiene esa fuerza emocional. Canciones como "Aquí Estoy" (I Will Always Return) o "No Me Vencerán" (Get Off of My Back) son himnos que definen la personalidad rebelde de Spirit. 2. Narración y Doblaje
Spirit was forced onto a train and taken far to the north to help pull a massive steam locomotive over a mountain. Realizing this "iron horse" would destroy his homeland, Spirit faked exhaustion and then triggered a chaotic escape, causing the locomotive to crash and starting a massive forest fire.
Si no está disponible en tu plataforma de suscripción mensual, la opción más fiable es el alquiler o la compra digital. Tiendas en línea como Apple TV (iTunes), Google Play Películas, Amazon Store y Rakuten TV permiten alquilar la cinta por un precio reducido o adquirirla de forma permanente para tu biblioteca digital. Al optar por estas plataformas oficiales, te aseguras de disfrutar de la película con opciones de audio en alta definición, subtítulos correctos y sin las interrupciones o riesgos de seguridad que conllevan las páginas de distribución ilegal. El argumento: Una lucha inquebrantable por la libertad
Fue nominada al Oscar a la Mejor Película Animada en 2003. Conclusión Spirit es un semental mustang salvaje, líder de
Spirit combinó de manera magistral la animación tradicional dibujada a mano en 2D (utilizada principalmente para los personajes y caballos) con la tecnología informática 3D en auge (usada para los paisajes inmensos, los cañones y el movimiento del tren). Este estilo híbrido le otorgó un aspecto visual atemporal y épico que le valió una nominación al Premio Óscar como Mejor Película de Animación. Personajes principales
: Un joven Lakota astuto y bondadoso. Desarrolla un profundo lazo de amistad y respeto mutuo con Spirit sin necesidad de doblegar su voluntad.
La trama sigue a Spirit, un joven y orgulloso caballo líder de su manada en las tierras vírgenes del Oeste americano. Su vida cambia drásticamente cuando se topa por primera vez con el ser humano.
Uno de los aspectos más destacados de "El Corcel Indomable" es su elenco de personajes. Cada uno de ellos aporta una riqueza emocional y una profundidad que hace que la historia sea aún más cautivadora.
Most of this is pretty straight forward. The structure looks like:
A descriptive section
Next is the Qemu section that describes how the VM environment should be constructed. This is straightforward as well. Console types are VNC or telnet. You may have to try different ethernet adapters to see what works, but I recommend starting with the Intel e1000 because this model is supported by most VMs. Using a para-virtualized adapter may give better performance, so you may also want to try vmxnet3. Most architectures will be 64bit and RAM requirements will usually be on the website.
That leaves two sections - Images and Versions. There should be a matching entry in both places. The images section is a list of virtual hard drives and CD-ROM images to use in the VM and includes:
Let’s update this file. There are a lot of old images listed as options. I’ll remove the image and version sections for 14.04.5.3 and add the most recent (16.04.7.1). That will leave users with the last 14.x and two images in 16.x including the latest. Whether dealing with a distribution or a commercial image, changes made between versions may introduce new processes or bugs so leaving some older images gives users an easy workaround. Here’s the updated file. Scroll below the output for a discussion of submitting this back to the project.
{
"name": "Security Onion",
"category": "guest",
"description": "Security Onion is a Linux distro for intrusion detection, network security monitoring, and log management. It’s based on Ubuntu and contains Snort, Suricata, Bro, OSSEC, Sguil, Squert, ELSA, Xplico, NetworkMiner, and many other security tools. The easy-to-use Setup wizard allows you to build an army of distributed sensors for your enterprise in minutes!",
"vendor_name": "Security Onion Solutions, LLC",
"vendor_url": "https://securityonion.net/",
"documentation_url": "https://github.com/Security-Onion-Solutions/security-onion/wiki",
"product_name": "Security Onion",
"product_url": "https://securityonion.net/",
"registry_version": 3,
"status": "stable",
"maintainer": "Brent Stewart",
"maintainer_email": "brent@stewart.tc",
"usage": "Your default account will have sudo priviledges. Squil and Squert username and password are configured in the Setup wizard. MySQL root is set to null. For more info see https://github.com/Security-Onion-Solutions/security-onion/wiki/Passwords.",
"symbol": "securityonion-logo.png",
"qemu": {
"adapter_type": "e1000",
"adapters": 2,
"ram": 3072,
"arch": "x86_64",
"console_type": "vnc",
"kvm": "allow"
},
"images": [
{
"filename": "securityonion-16.04.7.1.iso",
"version": "16.04.7.1",
"md5sum": "6bd811a05c1ec7973b8fca5c34cec13e",
"filesize": 2132803584,
"download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/",
"direct_download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/download/v16.04.7.1_20181010/securityonion-16.04.7.1.iso"
},
{
"filename": "securityonion-16.04.6.1.iso",
"version": "16.04.6.1",
"md5sum": "ca835cef92c2c0daafa16e789c343d1d",
"filesize": 2020605952,
"download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/",
"direct_download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/download/v16.04.6.1_20181010/securityonion-16.04.6.1.iso"
},
{
"filename": "securityonion-14.04.5.4.iso",
"version": "14.04.5.4",
"md5sum": "9c7cab756b675beb10de4274a3ad3bc6",
"filesize": 1874853888,
"download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/",
"direct_download_url": "https://github.com/Security-Onion-Solutions/security-onion/releases/download/v14.04.5.4_20171031/securityonion-14.04.5.4.iso"
},
{
"filename": "empty30G.qcow2",
"version": "1.0",
"md5sum": "3411a599e822f2ac6be560a26405821a",
"filesize": 197120,
"download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%30disk/",
"direct_download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/empty30G.qcow2/download"
}
],
"versions": [
{
"name": "16.04.7.1",
"images": {
"hda_disk_image": "empty30G.qcow2",
"cdrom_image": "securityonion-16.04.7.1.iso"
}
},
{
"name": "16.04.6.1",
"images": {
"hda_disk_image": "empty30G.qcow2",
"cdrom_image": "securityonion-16.04.6.1.iso"
}
},
{
"name": "14.04.5.4",
"images": {
"hda_disk_image": "empty30G.qcow2",
"cdrom_image": "securityonion-14.04.5.4.iso"
}
}
]
}
In GNS3, go to File > Import Appliance and make sure that your appliance imports correctly. GNS3 will provide guidance if there’s a formatting error. Looking at the JSON above, you can imagine that a common mistake is unmatched brackets!
If the GNS3a file loads, test it by creating an instance. You need to test at least any new versions you added. Make sure the appliance boots without error and that expected interfaces are available.
Once the pieces are working, submit the appliance to the community by cloning the GNS3-registry on Github and adding in your file.
git clone https://github.com/GNS3/gns3-registry.git
If you’ve already cloned it, make sure that your branch is up to date. Upstream is the original source (in this case the GNS3 copy).
git fetch upstream
Two Python programs are included in the repo. Run them both on your copy before continuing. These are QA processes that look for issues before you submit. They will take a little time to run.
pip3 install -r requirements.txt # this does __pip3 install jsonschma__ and __pip3 install pycurl__
python3 check.py
python3 check_url.py
Next push your local copy to your github copy. In Github terms, origin is your copy on Github, and master is the local copy.
git add .
git commit -m "Updated Security Onion"
git push -f origin master
Now we have an up to date local copy of the gns3-registry that includes our updated gns3a appliance and we’ve updated our fork on Github. Next, we offer our update to the project via a Pull Request. You are going to be one of the cool kids!
Go to the gns3-registry repository on Github and select the Pull Requests tab and click the big green New pull request button. Under Compare, select the link to compare across forks (since your copy is a fork) and select your fork. It should show you the changes to files so take a moment to digest that and make sure this PR is doing what you want. Finally, submit the Pull Request. Github will email you when there’s an update to the request. If the GNS3 team has a question, they’ll submit a comment on the PR and leave it open for you to resolve. Otherwise, it will get merged in and all the other GNS3 users will be able to enjoy your hard work!
Thanks!