Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com
Answertopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions
Privacy Policy

  




 

 

Red Hat Enterprise Linux 9 Essentials Book now available.

Purchase a copy of Red Hat Enterprise Linux 9 (RHEL 9) Essentials

Red Hat Enterprise Linux 9 Essentials Print and eBook (PDF) editions contain 34 chapters and 298 pages

Preview Book

6. Package Management

6.1. Strong Package Checksums

RPM provides support for signed packages using strong hash algorithms such as SHA-256 in order to ensure package integrity and increase security. Red Hat Enterprise Linux 6 packages are transparently compressed with the XZ lossless compression library, which implements the LZMA2 compression algorithm for greater compression (thus reducing package size) and faster unpacking (when installing RPMs). Further information on the stronger package checksums is available in the Deployment Guide

6.2. New Signing Key

All Red Hat Enterprise Linux 6 packages are digitally signed with a new 4096-bit RSA hardware signing key and using a SHA-256 hash. The RPM package signing document gives details of this new key.

6.3. The PackageKit Package Manager

Red Hat provides PackageKit for viewing, managing, updating, installing and uninstalling packages and package groups. PackageKit allows for quick repository enablement and disablement, a graphical and searchable transaction log, and PolicyKit integration. Further information on Package Kit is available in the Deployment Guide

6.4. Yum

Via its plugin architecture, Yum provides new or enhanced support for various capabilities such as delta RPMs (using the presto plugin), RHN communication (rhnplugin), and auditing and applying—using a calculated least-invasive (minimal) number of updates—only relevant security fixes to a system (security plugin).
Yum also ships with the yum-config-manager utility, which shows exhaustive information about all set configuration options and parameters for each individual repository. Further information on updates to Yum is available in the Deployment Guide

 
 
  Published under the terms of the Creative Commons License Design by Interspire