Category: Networking
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How to Check if You Trust eMudhra: Trust Stores and CT Logs
In the last post we saw how eight eMudhra intermediate keys were guessable in seconds, and how Mozilla and Chrome moved to distrust the emSign ECC Root CA – G3. A natural question after that is, “Am I affected?”. Before we dive deep, let’s understand there are two different places to look, and each answers…
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eMudhra CA Incident: When the “random” keys were not random
In October 2026 a Certificate Authority called eMudhra got into serious trouble. Researchers found that private keys of eight of its intermediate certificates were so weak that anyone could guess them in seconds. Before we dive into what happened, let’s understand a few basics and then go through the incident. Topics we will be covering…
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As a Security Engineer, what you need to know about ephemeral ports
What are ephemeral ports? Ports are used for sending and receiving data between devices, same like how ships use ports to send and receive goods. Now ephemeral ports are temporary ports that are used to send/recieve data. For commonly used services ports have port numbers associated for them for example SSH is port number 22,…
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What is Active Directory: Basics of Active Directory
If you are working in some IT company and if your company infrastructure is using windows, then there is a high chance that you are on windows AD. Active Directory is windows service which runs on windows servers and helps administrators to manage the windows devices in the network. Basically, the point of AD is…
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How to find IP address of anyone
To attack anyone the first thing you must know is to find the IP address of the target. There are many tools that help to find IP address but here in this tutorial I will help you with the tool called IP puller or IP logger. IP logger grabs the IP address of the victim…
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What is TCP/IP stack
Every basic you need to know about TCP/IP model Hey there! We are spending our most of the time on the internet, you know that there are more than 1.5 trillion devices are connected to our internet right now. Have you ever thought, how all these devices are connected and communicating each other without any…