Atul Thosar

A Guide to Container Networking: Part III – Docker Container Networking | HackerNoon

This is the third part of the series Container Networking. I will explain a little bit about the docker container networking in this blog post. I followed the steps mentioned in this to install docker on Ubuntu. Post docker install, you can see the docker0 device in the list ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode

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Atul Thosar January 19, 2025
Software

A Guide to Container Networking: Simplified | HackerNoon

My first encounter with a container was when I performed load testing on an application using JMeter. So, rather than installing JMeter on multiple Virtual Machines (VMs), I ended up deploying them on multiple containers on a single VM. I still remember that I was curious to understand how a container can manage to keep applications isolated. I was interested in understanding the networking part specifically. When I searched, a lot of terms were coined around. Like veth, bridges, Linux Namespaces, and cgroups.

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Atul Thosar January 18, 2025

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