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Oracle Linux 9.3 release: OpenSSH key enforces SHA-2 algorithm, provides RHEL 100% application binary compatibility, etc.

2024-02-27 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >


Shulou( Report-- Nov 21, Oracle Linux is an enterprise-class Linux distribution supported by Oracle, generated from the RHEL source code package, and now officially launched Oracle Linux 9.3.

Officially, Oracle Linux is available on 64-bit Intel, AMD (x86x64) and 64-bit Arm (aarch64) platforms, and provides binary compatibility to help ensure that applications run uninterrupted. In addition, Oracle Linux source code, binaries, ISO, etc., remain unrestricted and can be accessed from Oracle Linux yum servers: click here.

The ▲ image source Wikipedia Oracle Linux 9 Update 3 includes the following kernel options:

The Unbreakable Enterprise Kernel (UEK) kernel of x86x64 and aarch64 architecture, version UEK Release 7 Update 2, 5.15.0-200.131.27, based on upstream Linux Kernel 5.15, supports both Oracle Linux 9 and Oracle Linux 8.

The Red Hat RHEL compatible kernel (RHCK) of x86x64architecture, version number is 5.14.0-364.

The main changes attached to are as follows:

Oracle Linux now supports automatic reboot after patches are installed through DNF, and users can use different options (never, when changed, when needed) to automatically restart the system with enhanced DNF to speed up patch management operations.

By default, OpenSSH enforces the SHA-2 algorithm for key testing, and systems running Oracle Linux 9.3 cannot use SHA-1; on the client side. This enhancement avoids weaknesses in using the SHA-1 algorithm.

Oracle Linux 9.3 with UEK R7U2 continues to maintain and support btrfs file systems to access one of the most modern replication-on-write (COW) file systems on Linux.

In terms of compilers and development tools, Oracle Linux 9.3 tuned glibc to improve the performance of Intel Xeon V5 hardware.

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