Jeji James

@jeji-james

From Curious Beginner to Cybersecurity Professional

Dublin, IrelandJoined June 2026

About

Former Software Engineer | Master's Student in Cyber Security. Passionate about cybersecurity, networking, Linux, cloud security, GRC, and ethical hacking. I use this space to document my learning journey, share technical write-ups, and explore the evolving world of information security.

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Jeji James's blogs

Cyber Trail jeji-james.hashnode.dev3 posts

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Recently published

JJJeji Jamesjeji-james.hashnode.dev1d ago · 3 min read

Catching a Ping: Setting Up Suricata IDS to Detect ICMP Traffic

If you've ever wondered how network defenders actually "see" an attack happening in real time, this lab is a good first taste of it. I set up Suricata, an open-source Intrusion Detection System (IDS),

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JJJeji Jamesjeji-james.hashnode.dev4d ago · 2 min read

Understanding the OSI Model and TCP/IP Layers

When devices communicate over a network, that communication happens in structured layers, each with a specific job. The two main models used to describe this are the OSI Model (7 layers, theoretical/c

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JJJeji Jamesjeji-james.hashnode.devJun 15 · 2 min read

The Two IDs Every Device Needs: IP vs MAC Addresses

Every device on a network needs to be identifiable much like humans, who can be recognised by name (changeable) or fingerprint (permanent). Devices have a similar dual-identity system: IP addresses an

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Jeji James

About

Available for

Jeji James's blogs

Recently published

Catching a Ping: Setting Up Suricata IDS to Detect ICMP Traffic

Understanding the OSI Model and TCP/IP Layers

The Two IDs Every Device Needs: IP vs MAC Addresses

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Jeji James

About

Available for

Jeji James's blogs

Recently published

Catching a Ping: Setting Up Suricata IDS to Detect ICMP Traffic

Understanding the OSI Model and TCP/IP Layers

The Two IDs Every Device Needs: IP vs MAC Addresses