Have installed Nginx and firewalld as part of linux challenge 2. However, check status does not mark the task as completed.
Attached are screenshots of the same. Have also tried starting nginx services, but no luck.
Initially yum install was failing due to Centos 8 compatibility. So had to run follow commands to fix the error : CentOS-8 - AppStream 70 B/s | 38 B 00:00
Error: Failed to download metadata for repo âAppStreamâ: Cannot prepare internal mirrorlist: No URLs in mirrorlist
Commands :
cd /etc/yum.repos.d/
sudo sed -i âs/mirrorlist/#mirrorlist/gâ /etc/yum.repos.d/CentOS-*
sudo sed -i âs|#baseurl=http://mirror.centos.org://vault.centos.org|gâ /etc/yum.repos.d/CentOS-*
sudo reboot
After this issue was fixed. Proceeded with nginx installation.
Commands :
sudo yum install epel-release
sudo yum provides nginx
sudo yum install nginx (i.e the version provided in previous step)
sudo systemctl enable nginx
sudo systemctl start nginx
After this, could find that nginx was started. However, clicking on check status in the challenge, didnt mark the task as completed, as attached in screenshot.
Same here. Furthermore I had to add a nameserver entry to /etc/resolv.conf which is not asked in the tasks.
Hi @Alexandre, @Shashankgk16
You do indeed need to add a nameserver - google is always a safe bet (8.8.8.8).
Rather than telling you what to do, the question is testing if you can diagnose and solve the reason why yum is not initially working. This is the kind of thing you have to be able to do in the real world if youâre going to be an SA.
Also, simply installing and running nginx is not sufficient to complete the task. You must also complete the reverse proxy configuration that is asked for.
âŚAnd some of the tasks may be dependent on each other. The proxy configuration might only be able to be validated once the go app is running (Hint: examine the nginx access log once you have completed the tasks and in particular the http status codes. If there are log lines other than you testing Bobâs access, then what do you think might be happening?)
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Hi Alistair, Thanks for your response.
I understand that there are dependencies on other tasks and there are additional steps to test our knowledge similar to real time. But, for the following task which asks only about installation of packages - Nginx and firewalld, I assume that this particular task can be marked as completed.
Task:
** Install ânginxâ package.*
** Install âfirewalldâ package.*
Note: I have added the firewall rules and reverse proxy. Yet, the package installation tasks is not marked as completed.
Does the challenge check if all interrelated tasks are also completed.? Advise if the approach is right for the above task.
The packages task, go app and the firewall config task are standalone, but the nginx task depends on go app, although it goes without saying that you canât do anything much without the packages
If the pakages task is marked incomplete, then you have missed something. Read it carefully. Does it ask to enable and start the services? That must be done too if stated.
(Currently using my phone so canât see the lab)
Thanks Alistair, Yes services have been enabled and started too for firewalld and nginx. Since firewalld package and firewall config are standalone tasks, wondering why task isnt getting completed. Please have a look at the lab at your earliest convenience.