linux-troubleshooting-icmp

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icmp

Contents

__Roadmap info from [ roadmap website ] (https://roadmap.sh/linux/troubleshooting/icmp) __

ICMP

Internet Control Message Protocol (ICMP) is a supportive protocol used primarily by network devices to communicate updates or error information to other devices.When troubleshooting network issues in a Linux environment, ICMP forms a crucial aspect. It can be utilized to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages.

In Linux systems, common command-line tools related to ICMP include ping and traceroute, both used to diagnose the state of the network and often part of troubleshooting efforts. 

# Use of ICMP via the ping command to send an echo request to a specific host
ping www.google.com

This simple yet effective tool should not be missed out in any Linux network troubleshooting arsenal.