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avalletech/README.md

Alexis Valle-Bonilla

IT Operations and Networking · Computer Systems student at CUNY City Tech · Queens, NY

I build and document real infrastructure: virtualization, DNS, reverse proxies, internal TLS, and monitoring that alerts me when something breaks. Before IT, I spent nearly five years in telecom at T-Mobile troubleshooting devices and connectivity for customers every day, so I'm comfortable explaining technical problems to people who just need them fixed.

  • 🎓 BTech in Computer Systems, IT Operations track, CUNY New York City College of Technology (expected May 2027)
  • 🎓 AAS in Computer Information Systems, City Tech (2025)
  • 📜 CompTIA A+ certified · CCNA in progress (target January 2027)
  • 🗣️ Bilingual: English and Spanish
  • 💼 Open to IT internships and entry level roles: help desk, desktop support, NOC, junior sysadmin

⭐ Featured: Homelab

A Proxmox VE lab on a Dell OptiPlex running the services a small IT department would: Pi-hole for DNS, Nginx Proxy Manager as a reverse proxy, a private mkcert certificate authority for internal HTTPS, Uptime Kuma monitoring with Discord alerts, and scheduled backups. The repo includes a network diagram and a troubleshooting log of real outages, what caused them, and how I fixed them.

🛠️ Other projects

Project What it shows
Active Directory Lab Domain controller built in Hyper-V with AD DS, DNS, and DHCP; domain joined client, OUs, and Group Policy
Network Topology Lab Multi subnet network in Cisco Packet Tracer with VLANs, inter VLAN routing, and OSPF/RIP
Wireshark Traffic Analysis Packet captures and analysis with Wireshark, tcpdump, and Nmap
Apache Web Server on AWS Apache on an AWS EC2 Ubuntu instance with a virtual host, custom 404 page, mod_rewrite, and access logging
Python Scripts Automation I actually use: file organizer, startup launcher, subnet calculator

Android apps in Java: Compass · Stopwatch · Shake · Billiards · BeeFlowers · Fibonacci

🧰 Tools I've worked with

  • Virtualization: Proxmox VE, Hyper-V, VMware, VirtualBox, Docker, Portainer, AWS EC2
  • Networking: Cisco Packet Tracer, VLANs, OSPF, DNS, DHCP, reverse proxies, Wireshark, Nmap
  • Systems: Windows Server, Active Directory, Group Policy, Linux, Apache
  • Monitoring and security: Uptime Kuma, internal PKI and TLS, access control lists
  • Scripting: PowerShell, Python, SQL, Java

📚 Currently

  • Studying for the CCNA
  • Taking Virtualization (CST 3605) and Enterprise Application (CST 3615) at City Tech
  • Next homelab upgrade: moving backups off the host disk and turning full TLS verification back on in monitoring

📫 Contact

Portfolio · LinkedIn

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  1. homelab homelab Public

    Self hosted IT Operations lab on Proxmox VE: DNS, reverse proxy, TLS, backups, and alerting, with a log of real outages and fixes