NSSA-221 Lecture 1: Introduction
28 Jan 2019
School
Course
Professor
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)
