On test.server.com, add a new environment variable “VAR” with the value “RHCSA Prac Four” which will be available for local sessions for all users.

On rhel.server.com, allow Apache (httpd) to listen on tcp port 5569.

On ServerB, remove the "quiet" argument from the default kernel boot entries.

On ServerB, write a shell script “sum.sh” in the root directory that takes an unspecified number of command-line arguments of ints and finds their sum. To add a number to the sum it must be greater than 0.

Create a directory named "/collaboration" on ServerB, and configure it so that any files or subdirectories created within that directory are owned by the group "managers".