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# Linux Operating System
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## Instance of Ubuntu with Linux-based tools
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*A vlab enviroment ready for learning*
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This is designed to help you with:
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- Linux Networking
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- Essentials of Linux System Administration
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- Learn to orchestrate a lot of linux machines with ansible
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- Build network on top of OS
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- Advanced system programming
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>
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> You can learn your own pace regardless of tutor lessons.
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>
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> Our vlabs allow for design and trial or real world applications.
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>
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> Not being affraid of making mistakes
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>
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## VLAB Info
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- We have one master and multiple workers.
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- We get initial access to the master and from there we can use the workers.
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- Inside the master we have user access while in our workers we have sudo access whithout password.
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![Vlab](images/swarmlab-network.png "")
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> ### NOTE
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>
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> Vlabs are reset every night around 02:00!
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>
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>> If you would like to keep your work please refer to "publish".
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>
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> Vlabs dont have firewall restrictions BUT the machines are not exposed to the internet.
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>
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> You share all machines so please be cooperative and discrete.
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>
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## Quickstart
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This is a quickstart guide of howto use this *Lab*
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### Default Configuration
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#### Working Directory
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> /home/ubuntu
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#### Default user
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> ubuntu
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#### Publish Your Work
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```bash
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mkdir /home/ubuntu/directory
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put your files and other directories into /home/ubuntu/directory
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swarmlab-publish /home/ubuntu/directory
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open URL in Browser
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```
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#### Find lab workers
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The host file that contains addresses of connected workers can be created with:
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>
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> swarmlab-getworkers > /home/ubuntu/invhosts
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>
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#### connect to workers
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```bash
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ssh ubuntu@[IP]
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Info: user has sudo privileges without a password
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```
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#### connect to workers with ansible
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```bash
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cd /home/ubuntu/project/examples-os2/ansible
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make ps
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```
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---
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---
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**MORE INFO**
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See http://docs.swarmlab.io/SwarmLab-HowTos/labs/os2/index.adoc.html
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---
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