Let's talk About Networks, by Jerome Tissieres
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Like some other posts, I didn’t think I would write this one because it seemed obvious. But, after talking to a lot of engineers and customers, I realized that not everyone knows this trick. So here it is.
The question is this: how to simulate a real host in a physical network environment when you don’t have computer at your disposal? Well, let’s take an example.
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Here is another post of the series on network troubleshooting and tools under Linux.
In this post, I will talk about tcpdump.
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Here is another post of the series on basic network troubleshooting and tools under Linux.
In this post, I will talk about the cURL command.
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Here is the third post of the series on network troubleshooting and tools under RHEL / CentOS.
In this post, I will talk about the netstat and ss commands.
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Here is the second post of the series on basic network troubleshooting and tools under RHEL / CentOS.
In this post, I will talk about the Linux mtr command.
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We have all heard, at one time or another, a system administrator blaming the network. Then, it is up to the network engineers to prove that the network is not in cause. To do this, a minimum of network troubleshooting skills on Linux systems could be required.
For the first post in the series: many examples of how to use the ip and nmcli commands.
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As you can see here, I have been using Cisco Nexus NX-OS for many years. And even more intensively since a few months, as I work for a data center now.
During all this time, I accumulated a nice collection of NX-OS tips and tricks. Here it is. I hope this can help you to improve your daily work.