Projects
Technical Notes Repository
I maintain a public GitHub repository containing technical notes, runbooks, configuration references, and learning documentation related to Linux, networking, cloud infrastructure, and data center operations.
The repository serves as a structured knowledge base and demonstrates my approach to documentation, troubleshooting, and continuous learning.
Cisco Home Lab
I built this Cisco home lab to gain practical experience with enterprise networking hardware and infrastructure. Rather than treating it as a one-time project, I continuously build, modify, and troubleshoot small networking labs while documenting configurations, troubleshooting notes, and lessons learned.
As I complete new labs, I publish configuration examples, network diagrams, and technical documentation in my akirakubota-dev/notes/networking/home_lab repository, allowing the project to grow alongside my networking knowledge.
CCNA Study
I completed structured CCNA-level networking study focused on both theoretical understanding and hands-on lab practice. Through Jeremy’s IT Lab, Packet Tracer, and Boson NetSim, I developed practical familiarity with core networking and infrastructure concepts used in enterprise and data center environments.
- Studied broad CCNA topics including IPv4 and IPv6 addressing, subnetting, static routing, VLANs, spanning tree, EtherChannel, OSPF, DHCP, NTP, DNS, NAT, SSH, wireless networking, ACLs, syslog, and network security fundamentals
Data Center Operations Study
I have been studying the operational concepts and workflows used in modern data center environments in order to better understand how large-scale infrastructure is deployed, maintained, and operated reliably.
- Studied physical infrastructure concepts including rack units (U), hot and cold aisle layout, structured cabling, cable management, AB power feed design, PDUs, UPS systems, and redundancy models such as N+1
- Developed familiarity with operational practices including tickets, incidents, changes, remote hands support, internal SLAs, and infrastructure maintenance workflows
- Learned common data center networking and interconnection concepts such as cross-connects, meet-me rooms (MMRs), and structured equipment deployment
- Studied operational safety practices including ESD awareness, physical handling precautions, and reliability-focused procedures
Professional Website
I built and continue to improve this website as a long-term professional platform using HTML, CSS, and JavaScript. The goal is to provide a stable online presence that documents my technical growth, professional direction, and continued development in infrastructure, networking, and technology.
Infrastructure & Networking
- Managed DNS records and domain routing using Route 53
- Implemented 301 redirect from www to apex domain at the edge using CloudFront Functions
Security
- Enforced HTTPS across the site via CloudFront and ACM
- Applied frontend security best practices (noopener, noreferrer for external links)
- Implemented domain email authentication (SPF, DKIM, DMARC)
Verification & Validation
- Verified DNS propagation using
dig - Validated SPF, DKIM, and DMARC through real email header analysis
Personal Website
I also maintain a separate personal website, ak92fun.github.io , which began as my own music archive built around the things I genuinely enjoy.
The original goal was to create a small personal space that could help me connect with people through shared interests such as music, games, and media. Over time, it has also become a technical sandbox where I can experiment with static website structure, JavaScript interactions, Git, and GitHub Pages.
I use this site to practice improving small features over time, such as random selection, row-copy functionality, content organization, and reusable frontend patterns. In the future, I would like to migrate this lab from GitHub Pages to an EC2 and Apache-based architecture to gain more hands-on experience with Linux server administration, web hosting, DNS, and operational maintenance.