Monthly Archives: October 2015

RHEL 7 Password recovery procedure.

Everybody thinks the password recovery procedure in RHEL 7 is simple. But it is not. To start with, there are several procedures spread all over the Internet. All are slightly different, all are supposed to run in all situations, with

Posted in RHEL7

RHEL 7 Delta rpms.

Last year there was a discussion whether delta rpms should be activated or not by default in the Fedora 22 distribution, whether this feature should be kept or simply removed. But do you know exactly what delta rpms are? How

Posted in RHEL7

RHEL 7 Entropy mechanisms.

Sometimes to get some entropy you have to do strange things. Do you remember to make sudden mouse movements during SSH keys generation? Where do this entropy come from? Why does everything sometimes seem stopped? How does it work for

Posted in RHEL7

RHCSA7: Task of the day

Allowed time: 5 minutes.
Create two users "tom" and "engine". "tom" has the UID/GID 3000 and "engine" the UID/GID 4000. "engine" doesn't have an interactive shell.

RHCE7: Task of the day

Allowed time: 3 minutes.
Configure your machine to be a router.

Poll for favorite RHEL 7 book

What is your favorite RHEL 7 book to prepare RHCSA & RHCE exams?

View Results

Loading ... Loading ...

Poll for most difficult RHCSA 7 topic

What do you think is the most difficult RHCSA 7 topic?

View Results

Loading ... Loading ...

Poll for most difficult RHCE 7 topic

What do you think is the most difficult RHCE 7 topic?

View Results

Loading ... Loading ...