RH124 Chapter 15 Lab 4 (Manage Networks) - Activate the new static connection profile

[deepak12]

Hello,

I am facing problem in lab (Lab: Manage Networks - Chapter-15)  while Activating  the new static connection profile using the command nmcli connection up static , the server terminal goes in hung state and doesnot allow anything further. When try to connect the server from new terminal it throwing the  error "ssh: connect to host serverb port 22: no route to host" and finaly I have to terminate the lab. Tried the same several times but facing the same issue.

Someone please help how to fix this issue.

Thanks

[Chetan_Tiwary_ · Accepted solution]

@deepak12 there is an important note there - please do the networking tasks in the server VNC console directly and do not use ssh connection. It will work.

[deepak12]

Thanks a lot Chetan, it worked as you guided. But I am getting one more problem. Despite I have completed all 15 chapters along with the labs and quizes but not sure why the status still showing not completed (refer below screenshot).

Please suggest how to find the reason of it showing not completed.

Thanks.

[Chetan_Tiwary_]

@deepak12 Thanks for confirming about the resolution of your issue.

It should take a day to reflect the most recent status of your progress. If it is still not updated you can raise a support case and you will get the help.

[Tracy_Baker]

Of course it did, you changed the IP address. Your SSH connection was to serverb (which, in /etc/hosts is defined as 172.25.250.11). During the lab, you changed it to 172.25.250.111 - so you lost the connection.

You could have reconnected using SSH if you had used the new IP address: ssh 172.25.250.111

However, as @Chetan_Tiwary_ pointed out, you can avoid this problem by using the console to configure serverb instead of using SSH to access it.

The instructions specifically state this:

I'm going to point out two major things, and I may come across as harsh (and I may be making incorrect assumptions).

 If you are planning on taking the RHCSA:

1. Make certain you understand what you are doing and how things work. You didn't seem to grasp that changing the IP address on a system you had accessed using SSH - which is a network connection protocol that uses IP addressing - would "lock" you out. It also seemed that you aren't making the connection between serverb, 172.25.250.11, 172.25.250.111, and /etc/hosts and how they are related to one another.
2. You must read all instructions. The lab specifically states to connect to serverb using the console - not SSH - more than once.

It may be that you'll be asked to do a similar task during the RHCSA. If you are, and you get locked out as you did during this lab, you won't have anyone to ask for help. However (and again), the instructions that were given would have prevented your situation - had you followed them.

[Chetan_Tiwary_]

@Tracy_Baker It is not harsh, it is actually very helpful warning which can help save money , time and the exam as well. Thanks for your insights!