RHEL8

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RHEL 8 hasn’t yet been released but is expected around S1 2019 (there should be a beta period 6 months before).

We already know some aspects of it:

  • it will use the dnf command instead of yum with an almost identical syntax,
  • the file system Btrfs, once in technical preview, will no longer be available,
  • concerning the Python language used for most of the system scripts, the version 3.x will replace 2.7,
  • about LDAP, OpenLDAP won’t be available, you will have to used the 389 LDAP server or something else,
  • you won’t be able to remove NetworkManager from your configuration (it’s already the case with the Gnome graphical environment in RHEL 7.5).

We can expect some other things like:

  • a new version of CGroups: cgroups are a way to assign resource limits to processes. CGroups V2 would bring a better interface,
  • it shoud be based on the Fedora distribution as usual (perhaps Fedora 27 with LTS kernel 4.14).
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RHCSA7: Task of the day

Allowed time: 10 minutes.
Create two new user accounts "steve" and "oliver".
Create a group "team". Create a directory "shared".
All files put into the "shared" directory by "steve" or "oliver" should belong to the "team" group and be only visible by them.

RHCE7: Task of the day

Allowed time: 10 minutes.
Configure a httpd server that executes a Perl script in the /var/www/cgi-bin directory displaying "Hello!".

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