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Guide
Unknown Device on Your Wi-Fi? How to Identify It
Identify unfamiliar Wi-Fi devices by matching current IP addresses, checking private MAC addresses, comparing router records, and testing one device at a time.
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Guide
How to Trace an Email's IP Address (Gmail, Outlook, Yahoo)
Learn how to find the sender's IP address hidden in email headers — and what to do with it. Plus: the catch with Gmail and Outlook that most guides skip.
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Guide
How to Scan Open Ports Safely and Interpret Results
Open port scanning is useful for troubleshooting and security baselining when done legally. Here is a safe workflow and how to interpret open, closed, and filtered states.
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