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misteralva/README.md

👋 About me

I'm a student of the CFGS in Network Systems Administration (ASIR) – Cybersecurity. I build and document projects around networking, systems and security, from enterprise network designs and secure web apps to scripting exercises.

Education CCNA


Spanish Catalan English

Terminal: whoami prints misteralva. echo $MOTTO prints: Always asking how things actually work.

🛠️ Stack

Networking

Cisco A10

OSPF · HSRP · VLAN / VTP · STP · NAT / PAT · ACLs · DHCP · DNS · SSH

Security

Palo Alto Check Point Wireshark Kali Linux

Firewalls · Panorama · Site-to-site VPN · Remote-access VPN

Systems & virtualization

Linux, Ubuntu, Debian, Windows and Docker

VirtualBox VMware Proxmox

Monitoring & tools

Grafana

ServiceNow Excel PuTTY Blackbox

Scripting

Bash, PowerShell and Python

Web & data

HTML, CSS, JavaScript, PHP, MySQL, Git and GitHub

📂 Featured projects

AlwaysOnTech: full enterprise network in Cisco Packet Tracer lec-database: PHP and MySQL web app with stored procedures and auditing sysadmin: sysadmin practice exercises Bash: scripting exercises path python: Python from zero with a networking and cybersecurity focus

🌐 AlwaysOnTech — network topology 
flowchart TB
    CONS["Remote consultants"] --> ISP1["ISP1"]
    ISP1 --- FW1["Firewall 1"]
    ISP2["ISP2"] --- FW2["Firewall 2"]
    FW1 --- R0["R0 · edge router · OSPF"]
    FW2 --- R1["R1 · edge router · OSPF"]
    R0 --- C0["Core0 · L3 · HSRP"]
    R0 --- C1["Core1 · L3 · HSRP"]
    R1 --- C0
    R1 --- C1
    C0 --- D0["Dist0"]
    C1 --- D1["Dist1"]
    D0 --- ACC
    D1 --- ACC
    ACC["Access switches · one VLAN per department<br/>HR · Sales · Operations · Finance · IT · Servers"]
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🏅 Certifications

Certification Issuer Status
CCNA: Introduction to Networks (70 h) Cisco Networking Academy 🟡 In progress

🎓 Education

  • CFGS in Network Systems Administration (ASIR) – Cybersecurity · IFP, Barcelona · 2025 – Present
  • B.Sc. in Sports Management · Queens University of Charlotte · 2019 – 2022

📈 GitHub activity

GitHub stats Most used languages
Contribution streak

📫 Let's talk

Interested in networking, security or my projects? Reach out on LinkedIn.

LinkedIn

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Popular repositories Loading

  1. misteralva.github.io misteralva.github.io Public

    Personal portfolio and CV built with HTML, CSS and JavaScript

    JavaScript 1

  2. lec-database lec-database Public

    Full-stack web app to manage the League of Legends EMEA Championship (LEC): PHP + MySQL with stored procedures, triggers, role-based admin panel and audit log.

    PHP 1

  3. AlwaysOnTech-Red-Empresarial AlwaysOnTech-Red-Empresarial Public

    Design and implementation of a complete enterprise network in Cisco Packet Tracer. Includes OSPF, HSRP, VLANs, NAT/PAT, ACLs, DHCP, DNS, SSH, VoIP and ISP redundancy. CFGS ASIX project.

    1

  4. Bash Bash Public

    Step-by-step Bash scripting exercises for beginners, growing toward system and network administration. Each exercise includes a statement and a commented solution.

    Shell 1

  5. ASIR ASIR Public

    Coursework and labs from my CFGS in Network Systems Administration (ASIR) – Cybersecurity: network services, security and high availability.

    1

  6. python python Public

    Learn Python from scratch through hands-on exercises, from beginner to expert. Educational statements and solutions focused on automation, scripting, networking and cybersecurity.

    1