Week 3 Topic 2 discussion
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DeVry University, Chicago *
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211
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Information Systems
Date
Feb 20, 2024
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docx
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Uploaded by LieutenantCrownBeaver9
Topic 2
Share an example of using one or more common CLI troubleshooting commands to diagnose and rectify a network proble
A common network problem in cloud computing is connectivity issues between a virtual machine hosted
in a public cloud and an external resource on the internet. We will use the ping and traceroute commands to diagnose and rectify the issue.
You have a virtual machine running in a public cloud, and it's unable to connect to a specific external website, such as "www.mysite.com." You want to diagnose and resolve the connectivity problem.
Open your terminal or command prompt on the VM.
Run the following command to ping the external website:
ping www.mysite.com
If you receive a response, it indicates that there is network connectivity to the website. If you don't receive a response, there may be network issues between your VM and the website.
Using the traceroute command:
Run the following command to trace the path your network packets take to reach the website:
traceroute www.mysite.com
This command will provide you with a list of hops your packets go through. It can help you identify where the connection might be failing.
Analyze the results:
Check the output of the traceroute command for any hops that show significant delays or failures. These could be points of congestion or issues in the network path.
Investigate the firewall rules and security groups:
Log in to your cloud provider's console (either AWS, Azure, GCP) and review the security group or firewall rules associated with your VM. Ensure that there are no rules blocking outbound traffic to the website.
Review route tables and network configurations:
Check the route tables or network configurations in your cloud provider's console to ensure that the traffic is correctly routed to the internet gateway.
Consult cloud provider documentation and support:
If you are unable to resolve the issue using the above commands and configurations, consult your cloud provider's documentation and support resources for further troubleshooting assistance.
REF:
https://www.howtogeek.com/355664/how-to-use-ping-to-test-your-network/
https://www.howtogeek.com/134132/how-to-use-traceroute-to-identify-network-problems/
https://docs.aws.amazon.com/vpc/latest/userguide/configure-your-vpc.html
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