Sysadmin vs. dev ops

May 12, 20201 like253 views

This document compares and contrasts the roles of system administrators (sysadmins) and DevOps engineers. It discusses that sysadmins are primarily focused on installing, configuring, and maintaining operating systems, software, and company products on local servers and PCs. DevOps engineers, on the other hand, work with cloud platforms, APIs, infrastructure as code, automation tools, and focus on monitoring through tools like Elasticsearch and Prometheus. It also provides examples of how sysadmins and DevOps engineers differ in their approaches to configuration management, monitoring, and debugging infrastructure issues.

Marian Marinov - mm@yuhu.biz
Head of Devops - Siteground.com
SysAdminsSysAdmins
vs.vs.
DevOpsDevOps
Dev.bg 12.May.2020

6
Short assumption
Installation, configuration and maintainence of:
> operating systems
> additional software
> company products
> and their thirdparty dependencies

8
Sysadmins?
Local PCs and network equipment
Locally positioned servers
Dedicated or CoLocated servers in a DC
VMs on physical/dedicated/colocated
servers

9
DevOps?
GCP
AWS
DigitalOcean
and even on premise, private clouds

10
DevOps tools
OpenStack
OpenShift
Kubernetes
LXD
Docker
even Proxmox ☺

11
Sysadmin tools
kickstart file
Fully Automatic Installation (FAI)
Cobbler
Spacewalk
OpenQRM
Foreman

13
Sysadmin attachments
installing machines
managing configuration
doing routine maintenance tasks

14
DevOps attachments
APIs
complex solutions
infrastructure as code

17
Syadmin configuration
syncing files between machines with scp
backing up files on a separate machine
or tools like csync2
even keeping a git repo with the configs
A script that will do backups.
A script that will sync them to a new
machine.

18
Devops configuration
Using automation tools like:
Ansible
Chef
Puppet
Saltstack
Configuration in the format required by
the tool.
Changes to the tool to meet the
requirements.

19
Configuration updates
Sysadmins tend to use things like echo and
sed to update configuration files
DevOps relay on what is offered by the
tool they are using

20
Configuration updates
Example:
sed i 's/82.31.48.12/84.13.4.6/g'
             /etc/apache/sitesavailable/*
hosts: all
  tasks:
   name: Change the IP of the httpd
    replace:
      path: /etc/apache/sitesavailable/*
      regexp: '82.31.48.12'
      replace: "84.13.4.6"

22
Monitoring
Sysadmins are overly attached to:
shell scripts and email notifications
Nagios
Cacti/Mrtg
RRDtool generated graphs
DevOps poeple perefer:
Elastic Search + LogStash + Kibana
Graphana
Prometheus
even InfluxDB

24
Debugging your infrastructure
Provisioning of a VM in AWS has failed
vs.
Provisioning of a VM in on srvX failed
(the server may be in a DataCenter somewhere)

25
DevOps Debugging
* bug in the provisioning software
* problem with the configuration
* incorrect credentials
* network issue
And this is even before checking the logs
from your infrastructure provider

26
Sysadmin Debugging
* connect to the problematic server
* check if all required services are
running
* check the logs for the problem
Most probably, does not have logs from the
calls/ssh to the server :)

28
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A measles outbreak originating in West Texas has been linked to confirmed cases in New Mexico, with additional cases reported in Oklahoma and Kansas. The current case count is 817 from Texas, New Mexico, Oklahoma, and Kansas. 97 individuals have required hospitalization, and 3 deaths, 2 children in Texas and one adult in New Mexico. These fatalities mark the first measles-related deaths in the United States since 2015 and the first pediatric measles death since 2003. The YSPH Virtual Medical Operations Center Briefs (VMOC) were created as a service-learning project by faculty and graduate students at the Yale School of Public Health in response to the 2010 Haiti Earthquake. Each year, the VMOC Briefs are produced by students enrolled in Environmental Health Science Course 581 - Public Health Emergencies: Disaster Planning and Response. These briefs compile diverse information sources – including status reports, maps, news articles, and web content– into a single, easily digestible document that can be widely shared and used interactively. Key features of this report include: - Comprehensive Overview: Provides situation updates, maps, relevant news, and web resources. - Accessibility: Designed for easy reading, wide distribution, and interactive use. - Collaboration: The “unlocked" format enables other responders to share, copy, and adapt seamlessly. The students learn by doing, quickly discovering how and where to find critical information and presenting it in an easily understood manner. CURRENT CASE COUNT: 817 (As of 05/3/2025) • Texas: 688 (+20)(62% of these cases are in Gaines County). • New Mexico: 67 (+1 )(92.4% of the cases are from Eddy County) • Oklahoma: 16 (+1) • Kansas: 46 (32% of the cases are from Gray County) HOSPITALIZATIONS: 97 (+2) • Texas: 89 (+2) - This is 13.02% of all TX cases. • New Mexico: 7 - This is 10.6% of all NM cases. • Kansas: 1 - This is 2.7% of all KS cases. DEATHS: 3 • Texas: 2 – This is 0.31% of all cases • New Mexico: 1 – This is 1.54% of all cases US NATIONAL CASE COUNT: 967 (Confirmed and suspected): INTERNATIONAL SPREAD (As of 4/2/2025) • Mexico – 865 (+58) ‒Chihuahua, Mexico: 844 (+58) cases, 3 hospitalizations, 1 fatality • Canada: 1531 (+270) (This reflects Ontario's Outbreak, which began 11/24) ‒Ontario, Canada – 1243 (+223) cases, 84 hospitalizations. • Europe: 6,814

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Title: A Quick and Illustrated Guide to APA Style Referencing (7th Edition) This visual and beginner-friendly guide simplifies the APA referencing style (7th edition) for academic writing. Designed especially for commerce students and research beginners, it includes: ✅ Real examples from original research papers ✅ Color-coded diagrams for clarity ✅ Key rules for in-text citation and reference list formatting ✅ Free citation tools like Mendeley & Zotero explained Whether you're writing a college assignment, dissertation, or academic article, this guide will help you cite your sources correctly, confidently, and consistent. Created by: Prof. Ishika Ghosh, Faculty. 📩 For queries or feedback: [email protected]

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