Opleiding: Linux Networking and Troubleshooting (English) [5HA_15008]
OVERVIEW
Everything is connected, but still no connection? Perhaps something is going wrong with network traffic along the way. Network connectivity is not exactly getting easier in times of virtualization, containers, cloud and Internet of Things. And what do you do when the network doesn’t work as expected? Time to examine where network traffic wants to go, where it’s actually going, or what it’s running into.
In this course, we’ll discuss how an IP network works, how applications connect, and how to configure and diagnose on Linux. We will tackle connection setup problems hands-on by systematically routing network traffic. You will learn to capture network traffic, filter it and analyze where it comes from and where it goes. You can then store this traffic in a capture file to analyze later with specialized tools. This will give you deeper insight into exactly what is happening in a network data packet and what can go wrong along the way.
OBJECTIVES
- After this course, your knowledge of IP networks and Linux network configuration will be refreshed. You will have taken the common tools to gain insight into a network issue. With this knowledge, you will be able to solve the problem in a targeted and systematic way.
AUDIENCE
DevOps engineers, network administrators, and system administrators who want to analyze and solve network problems specifically in/with their Linux-based infrastructure.
CONTENT
- Network theory: the TCP/IP stack, protocols, and structure
- Linux network configuration
- Tools for testing the network and network services
- Packet capture with tcpdump and analysis with Wireshark
- Firewall
- Logfiles
