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# 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
# whereis `!!`
@ssbostan
.@bostandoust ir
@shirazcloud
@shirazlug
‫ردهت؟‬ ‫از‬ ‫خبر‬ ‫چه‬
#1
#2
#3
Based on Fedora 28 and the upstream kernel 4.18
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
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.
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.
Custom system images with Image Builder
lorax-composer
Rethinking how we make ready-to-use operating system images.
Spectre V2 mitigation default changed from IBRS to Retpolines
spectre_v2=ibrs
nobody
user replaces nfsnobody
from ID 99 to 65534 (overflow)
XFSnow supports shared copy-on-write data extents
cp --reflink
Maximum XFS file system size is 1024 TiB
Virtual Data Optimizer
Data Deduplication | Compression
LUKS2
is now the default format for encrypting volumes
metadata redundancy
auto-recovery in case of a partial metadata corruption event
Docker
is not included in RHEL 8.0. For working with containers, use
the podman, buildah, skopeo, and runc tools.
system-wide cryptographic policies
update-crypto-policies --show
update-crypto-policies --set FUTURE
#4
CentOS Stream
will be a rolling-release Linux distro
midstream between
upstream development in Fedora Linux
downstream development for RHEL
#5
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)
.‫باشید‬ ‫پیروز‬ ‫و‬ ‫موفق‬
sudo -u#-1 poweroff

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Red Hat, CentOS, Fedora 2019

  • 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
  • 5. #1
  • 6.
  • 7.
  • 8.
  • 9. #2
  • 10.
  • 11.
  • 12.
  • 13. #3
  • 14.
  • 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.
  • 19.
  • 20.
  • 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)
  • 24.
  • 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
  • 28.
  • 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
  • 32.
  • 33. CentOS Stream will be a rolling-release Linux distro midstream between upstream development in Fedora Linux downstream development for RHEL
  • 34. #5
  • 35.
  • 36.
  • 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