Scripts for RedHat Administration I

[Centurion]

The Netlab for the RedHat Academy seems to be missing some scripts like lab process that creates services for students to kill in lab 8.  Also so far the script to create users in Lab 6

If anyone has some where to point me that would be appreciated.

[ralii]

You may want to reach out to Netlab. There was a certificate expiration that hit the environment in early January 2019. Netlab has apparently updated their environments but there may be something that you need to do to activate.

FYI, the problem broke the the Apache process on the classroom VM. That process *serves* the lab scripts to the student systems. An inability to run lab scripts is a symptom of this problem.

--Rob
Highlander of UCF (the classroom environment)

[Centurion]

Thanks.  Rob

Do you know if a copy of the scripts are available?

[ralii]

There are two workarounds for already deployed classroom VMs.

1) On the classroom VM, authenticate as root (instructors should know

the password), and edit the /etc/httpd/conf.d/nss.conf file and append

a line "NSSEnforceValidCerts Off" which is likely to be functional and

simply ignore the expired certificates which we do not believe we ever

use. You should then be able to start the web server and have

rht-verify-classroom report happy!

2) On the classroom VM, you can replace the certs by executing the

following sequence of commands as root on the classroom VM:

classroom# sed -i -e 's/VALIDITY=.*/VALIDITY=120/g' /usr/sbin/gencert

classroom# mkdir /etc/httpd/alias/old

classroom# mv /etc/httpd/alias/*.db /etc/httpd/alias/old

classroom# /usr/sbin/gencert /etc/httpd/alias >

/etc/httpd/alias/install.log 2>&1

classroom# chgrp apache /etc/httpd/alias/*.db

classroom# chmod g+r /etc/httpd/alias/*.db

You can view the expiration date with:

classroom# certutil -L -n Server-Cert -d /etc/httpd/alias

They should then be able to start the web server and have

rht-verify-classroom report happy!

classroom# systemctl restart httpd

classroom# rht-verify-classroom

Hope that helps!

--Rob