Network Security Engineering

Intercept: How MITM attacks work in Ethernet, IPv4 & IPv6

A deep technical dive into how MITM attacks actually work in Ethernet, IPv4, and IPv6 networks from ARP and DHCP to IPv6 RA, DNS, and FHRP spoofing.

A Postcard from Caster II

You are not a bad person for what happened.

Sara v1.3.0 Released!

I have released a new version v1.3.0 of my tool Sara, a RouterOS configuration analyzer.

A Postcard from Caster I

Sometimes life leaves you alone not to hurt you, but to show you how strong you can be.

Parallax: Kerberos Security

This is research on detecting attacks on Kerberos using traffic analysis.

Noir: How to Protect Juniper Networks [Demo]

A short demo of Noir, a tool that analyzes Juniper JunOS configurations for vulnerabilities, weak access controls, and misconfigurations.

Noir: JunOS Security Inspector

Release of JunOS Security Inspector

Legless: IPv6 Security

IPv6 often remains active in corporate networks. In this article, I will discuss attacks on IPv6 and detection methods.

CSTR:LGLSSIPV6:ATK [TEASER]

On September 1, I will publish an article on attacks on IPv6. Don't miss it!

CSTR:JNOS-SEC:082025 [TEASER]

Ibex: Pwning IPv6 Networks

Interactive IPv6 toolkit for pentesting IPv6 networks.

Seen It All: Detecting Active Directory Attacks with Suricata IDS [English Subtitles]

Research on detecting attacks on Active Directory based on network traffic analysis.