IBM acquired Red Hat Red Hat logo changed after 20 years Red Hat Enterprise Linux 8 List of New Features of RHEL 8 CentOS 8 Released CentOS released new midstream called CentOS Stream Fedora 31 Released New Fedora spins New Features of Fedora 31

1. # whoami
‫دوست‬ ‫بستان‬ ‫سعید‬
‫نویس‬ ‫برنامه‬ ‫و‬ ‫افزار‬ ‫نرم‬ ‫مهندس‬
‫سال‬ ‫از‬ ‫گنو/لینوکس‬ ‫ادمین‬ ‫سیس‬۱۳۸۵
‫شیرازکلود‬ ‫و‬ ‫شیرازالگ‬ ‫عضو‬
‫های‬ ‫انجمن‬ ‫عضو‬, , ,Red Hat Ceph HAProxy Galera
‫گروه‬ ‫بنیانگذار‬OpenStack‫شیراز‬
‫افزار‬ ‫نرم‬ ‫و‬ ‫شبکه‬ ‫امنیت‬ ‫و‬ ‫ابری‬ ‫رایانش‬ ‫و‬ ‫زیرساخت‬ ‫حوزه‬ ‫در‬ ‫فعال‬
‫های‬ ‫تکنولوژی‬ ‫و‬ ‫گنو/لینوکس‬ ‫های‬ ‫دوره‬ ‫مدرس‬Red Hat
Saeid Bostandoust
ssbostan@linuxmail.org
bostandoust.ir

2. # whereis `!!`
@ssbostan
.@bostandoust ir

3. @shirazcloud
@shirazlug

4. ‫ردهت؟‬ ‫از‬ ‫خبر‬ ‫چه‬

5. #1

9. #2

13. #3

15. Based on Fedora 28 and the upstream kernel 4.18

16. YUMv4 package manager is now based on the DNF technology.
BaseOS | AppStream Repositories
# yum module list
# yum module info php
# yum module install php:7.1/minimal
# yum module remove php:7.1/minimal

17. Python 3.6 is the default Python implementation in RHEL 8.
Limited support for Python 2.7 is provided.
No version of Python is installed by default.

18. GNOME Shell has been rebased to version 3.28.
GNOME session and the GNOME Display Manager use Wayland.
X.Org server is available as well.

21. Custom system images with Image Builder
lorax-composer
Rethinking how we make ready-to-use operating system images.

22. Spectre V2 mitigation default changed from IBRS to Retpolines
spectre_v2=ibrs

23. nobody
user replaces nfsnobody
from ID 99 to 65534 (overflow)

25. XFSnow supports shared copy-on-write data extents
cp --reflink
Maximum XFS file system size is 1024 TiB

26. Virtual Data Optimizer
Data Deduplication | Compression

27. LUKS2
is now the default format for encrypting volumes
metadata redundancy
auto-recovery in case of a partial metadata corruption event

29. Docker
is not included in RHEL 8.0. For working with containers, use
the podman, buildah, skopeo, and runc tools.

30. system-wide cryptographic policies
update-crypto-policies --show
update-crypto-policies --set FUTURE

31. #4

33. CentOS Stream
will be a rolling-release Linux distro
midstream between
upstream development in Fedora Linux
downstream development for RHEL

34. #5

37. Fedora 31 New Features:
“python” command is “python3”
Support for cgroups v2
Switching RPM compression to ztsd
Support for RPM 4.15
New Desktop Spins: KDE Plasma, Xfce
ARM AArch64 architecture
for single-board computers (SBCs)

38. .‫باشید‬ ‫پیروز‬ ‫و‬ ‫موفق‬
sudo -u#-1 poweroff