Embedded Files
CORE DEFENSIVE TECHNICAL SKILLS
Overview
I hardened a home wireless network by enabling Wi-Fi Protected Access 3 and tightening router settings. I paired modern encryption with practical controls like guest isolation and device allowlists to cut attack surface while keeping daily use simple. (How to Secure Wireless Networks)
Objectives
Enable WPA3 on the primary wireless network.
Set a strong passphrase and remove weak features.
Stand up a guest network with isolation.
Document configuration and a simple maintenance routine.
Prerequisites
Router that supports WPA3 or WPA2 and WPA3 mixed mode.
Admin access to the router web console.
Device firmware up to date.
Tools and technologies
WPA3 capable router, vendor web console
Password manager, basic wireless analyzer
Implementation
1. Access wireless settings
Browse to the router gateway address (for example 192.168.1.1 or 192.168.0.1).
Log in with the administrator account. Change the admin password if it is still default.
2. Enable WPA3
Wireless Security: set WPA3 Personal.
If some devices cannot join, use WPA2 and WPA3 Mixed Mode until those devices are upgraded.
3. Set a strong passphrase
Use 16 or more characters with letters, numbers, and symbols. Store it in a password manager.
4. Apply and reconnect
Save or Apply changes. Reconnect devices using the new passphrase.
5. Harden the wireless environment
SSID: use a neutral name that does not reveal brand or identity.
WPS: disable Wi-Fi Protected Setup pins and push button enrollment.
Guest network: enable a separate SSID with client isolation. Use a different passphrase.
MAC filtering: optionally allowlist known device MAC addresses. Note that MAC can be spoofed, so treat this as a light control.
Transmit power: reduce power if the signal bleeds outside the property.
Router updates: check for firmware updates and apply on a quarterly cadence.
6. Connect and verify
Update device firmware so they support WPA3.
Rejoin the network and confirm the security type shows WPA3 in the device details.
7. Monitor and maintain
Review connected devices monthly. Remove unknown entries.
Rotate the wireless passphrase on a set schedule or after guest events.
Keep a small change log for traceability.
Outcomes
Primary wireless network protected with WPA3 and a long passphrase.
Guest traffic isolated from the main network.
Repeatable maintenance plan that keeps the router current.
Skills demonstrated
Router hardening and wireless encryption configuration
Network segmentation and guest isolation
Documentation and maintenance planning
Google Sites
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