Linux Network Troubleshooting Commands (CCNA/DevOps) | Udemy Coupons 2025

This course is an introduction to network troubleshooting Linux-based devices and servers. Learn how to verify server interface settings, routing, and DNS. You will also learn how to configure network interfaces. Troubleshoot TCP/UDP connection with open port testing and socket statistics command.

It is common to have network servers and devices deployed to the data center. They are all based on some Linux derived version. Currently 90% of the top 1 million internet servers are Linux-based. Ansible and Terraform referred to as Infrastructure as Code (IaC) are often deployed to Linux servers. In this course you will learn Linux system and file management navigation commands.

• Learn how to troubleshoot Linux-based network devices and servers to the network layer.
• Learn important networking commands to analyze configuration and operational state.
• Learn how to edit networking and system configuration files easily with Nano editor.
• Learn how to analyze system performance and network traffic with Linux commands.

There are also networking commands for troubleshooting up to Layer 3 with Debian v.12 host and Ubuntu v.20 server.  There are network management applications deployed to servers in the cloud and on-premise data centers for Syslog, SNMP, DHCP, DNS, NTP, and RADIUS.

System Commands

• System Information
• Security Rights
• Change Directory
• Display File Contents
• Nano Configuration Editor
• Grep File Search

Networking Commands

• TCP/IP Model
• Interface Status
• Data Link Connection
• Server IP Addressing
• DNS hostname testing
• Server Open Port Testing
• Firewall Operation
• Linux Commands Cheat Sheet

CISCONET Training Solutions is a certification training provider with thousands of students worldwide. Training expert with 25+ years of experience, CCNA author, and Cisco spotlight awards. The integrated learning system includes online courses, lab training, study tools, and practice tests.

CCST • CCNA • CCNP • IT/Networking