NSSA-221 Lecture 1: Introduction

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System Administration
INSTRUCTOR: GARRETT A
Lesson One - Distributed Networks
PreClass
What’s a SysAdmin do?
Manage network
Automating tasks
Updates & Softwares
Devices
Servers
IP Phones
Routers/AP
Services
User Accounts (People)
Maintain images
NetAdmin vs SysAdmin
NetAdmin responsible for lower (network) OSI layers (Physical, Data Link,
Network)
SysAdmin responsible for upper (application) OSI layers (Transport, Session,
Presentation, Application)
SysAdmin + NetAdmin = Operations (starting to merge ~ early 2000s)
Operations + Developers = DevOps (starting to merge now)
Introduction
Three Absolute Sys Admin Rules
Automate tasks!! (And document it)
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