About



About MR.TECHSPARROW

Welcome! If you are tired of scrolling through pages of bloated backstory just to find the one command or configuration you actually need, you are in the right place.

MR.TECHSPARROW is a technical blog focused on Linux, Windows Server, and networking. More importantly, it is a collection of practical, real-world guides.

I originally built this site as my personal technical runbook—a place to document tested solutions, configurations, and troubleshooting steps so I could easily share them with peers. I believe in clear, step-by-step explanations without the unnecessary complexity.

What You’ll Find Here

Everything on this blog is based on hands-on experience and continuous learning. Expect to find straightforward guides on:

  • Linux Administration: Installation, configuration, and hardening (Rocky Linux, RHEL, Ubuntu, etc.).

  • Windows Ecosystem: Windows Server administration and enterprise deployments.

  • Networking & Infrastructure: Routers, switches, firewalls, DNS, and core IT services.

  • Security & Troubleshooting: Real-world fixes, best practices, and scenario-based problem solving.

Whether you are a seasoned system administrator, a network engineer, or an IT student just setting up your first home lab, these guides are written to be accurate and easy to follow.

About the Author

I’m Manohara Alwis, a CCNP-certified Network Engineer with deep, hands-on experience across Linux systems, Windows environments, and enterprise networking. I built this space to document my ongoing work, share tested solutions, and help other IT professionals solve real-world infrastructure problems without the headache.

Support the Blog & Recommendations

If you are following along with these guides and need a reliable place to spin up your own servers, you can use my DigitalOcean Referral Link to get free credits toward your new account. It is a great way to start building your own infrastructure while supporting this blog at no extra cost to you.

Work With Me (Referrals & Consulting)

In addition to running this blog, I am available for freelance consulting, infrastructure setup, and technical troubleshooting.

If you or your team need an extra pair of experienced hands, I can help with:

  • Custom Linux/Windows Server deployments and hardening.

  • Network design, configuration, and troubleshooting.

  • Ansible automation and server provisioning (Check out my services on Fiverr!).

  • Technical documentation and runbook creation for your internal IT team.

Want to work together? Reach out to me at  Fiverr