Networking
Navigating the Depths of Kubernetes Networking with Cilium: A Comprehensive Guide
10 min readThis guide embarks on a journey to unravel the complexities of Kubernetes networking and spotlights Cilium’s transformative role in the container orchestration landscape. Through …
Mastering DNS Troubleshooting in Kubernetes
6 min readUnderstanding and resolving DNS issues in Kubernetes can be challenging. This workshop is designed to equip you with the skills and knowledge needed to effectively troubleshoot DNS …
Understanding 'TCP Segment of a Reassembled PDU' in Wireshark
3 min readUnderstanding ‘TCP Segment of a Reassembled PDU’ in Wireshark Wireshark often marks TCP packets with the label “TCP segment of a reassembled PDU.” This annotation can seem …
How to Free Up a TCP/IP Port
2 min readHow to Free Up a TCP/IP Port If you need to free up a TCP/IP port your application has previously bound to, there are a few essential steps to follow. This is crucial to make the …
Simulating Delayed and Dropped Packets in Linux
1 min readSimulating Delayed and Dropped Packets in Linux If you’re wondering how to simulate delayed and dropped packets in Linux, the standard method involves using the netem scheduling …
Can Multiple Applications Share the Same Port?
2 min readThis article explores whether multiple applications can listen on the same port.
Checking Port Status on a Remote Host
2 min readChecking Port Status on a Remote Host When you need to determine the status of a port on a remote host, it usually means finding out whether the port is open (listening for …
How CoreDNS and NodeLocalDNS Work in a Kubernetes Cluster
5 min readDNS is an essential component of any network infrastructure, providing resolution for hostnames to IP addresses. In a Kubernetes cluster, DNS plays a critical role in enabling …