Network Packet Analysis with Wireshark: TCP, UDP, and ICMP Protocol Deep Dive
Wireshark Filter Fundamentals
When analyzing network traffic with Wireshark, filters are essential for navigating through large packet captures. They help isolate specific protocols, IP addresses, or port communications.
Filter Expression Syntax
Protocol filtering: tcp or udp to display only TCP or UDP packets
IP adress filtering: ip.src == 19 ...
Posted on Tue, 13 Oct 2026 16:38:43 +0000 by phuggett
Network Connectivity Analysis and Optimal Path Planning with PostGIS and pgRouting
Extension Installation
pgRouting requires PostGIS as a prerequisite dependency.
Cloud Hosting
For systems with existing PostgreSQL and PostGIS installations:
sudo apt install postgresql-9.3-pgrouting
Windows Systems
Download from: http://download.osgeo.org/postgis/windows/
Creating Extensions
Enable the required extensions in your PostgreSQL d ...
Posted on Mon, 03 Aug 2026 16:42:10 +0000 by ridiculous
Analyzing RSA Encryption in CTF Challenge: From APK Reverse Engineering to Traffic Decryption
Problem Overview
The challenge provides two files: an APK and a pcapng packet capture. The solution requires analyzing network traffic and reverse engineering the encryption implementation.
Traffic Analysis
Opening the pcapng file reveals standard TCP traffic. Following TCP streams and decoding the hex content exposes the application protocol:
...
Posted on Fri, 05 Jun 2026 16:35:37 +0000 by hsn