patch management in solaris and red hat. what is a patch a collection of fixes to a problem three...
Post on 22-Dec-2015
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What is a Patch
A collection of fixes to a problemThree main categories:Security
Bugs in the system that provide unauthorized access (rlogin)
FunctionalityData integrity, reliability (cron)
PerformanceExcessive use of system resources
Patch Management
The process of determining if a system has the most appropriate software installed.
Where do patches come from?Operating System vendorsApplication distributors
Third party software
Discovery
Online resources & Vendor toolsSolaris
SunSolve & NewslettersSolaris Patch Manager ToolSun Patch Check
Red HatRed Hat Network & Alert Notification ToolRPMRed Hat Update Agent
Determination
Comparing what is on your machine to what is availableLevel of importanceSolarisSolaris Patch Manager ToolPatch CheckPatchDiagSun Management Center
Determination (cont’d)
Solaris (cont’d)Solaris Live UpgradeSolaris Flash Technology
Red HatRed Hat Update AgentRed Hat NetworkRed Hat Network Alert Notification Tool
Installation
AutomatedSolaris: Solaris Patch Manager, Sun
Management Center, Solaris Live UpdateRed Hat: Red Hat Update Agent, Red Hat
Network, Red Hat Network Alert Notification Tool
ManualSolaris: patchaddRed Hat: rpm
PM Strategies
Patch Management ProcessDetermine which patches to installFind any patch dependenciesRemove old version of patch Install patch and dependencies
PM - Solaris
SolarisMonitor newsletters and website regularlyFour Types of patches:
Solaris UpdatesMaintenance UpdatesAlert PatchesAdvisory Patches
PM - Solaris
Three tiered approach: Install Solaris and Maintenance Updates Install Alert Patches Install patches on a per-issue basis
Patch Installation ProcessTest -> Development -> Production
AutomationSolaris Patch Manager Tool