IT Management CSCI 12000– Windows on Computer Science Copyright © 2012, 2014 by Scott Orr and the Trustees of Indiana University

`whoami` Scott Orr IUPUI for over 20 years Founding member of E&T CNC group CS and Science Contact info Phone: Office: EL 204 Hours: M-F 9-4

What is a System Administrator? Someone who takes care of the systems others are using. System Running Smoothly and Efficiently Users able to work in Easy and Efficient Manner

Sysadmin.sig file “My job is like an airplane pilot's -- When I'm doing it well, you might not even notice me, but my mistakes are often quite spectacular.” Source: Unknown

System Administration Tasks User Management Hardware Management Software Management Service Management System/Service Monitoring & Troubleshooting Documentation & Help Desk Backups Automation, Planning, Policies, and Auditing Firefighting!!!

The Good… Lots of variety Challenging Fulfilling Pays well Very employable

The Bad… Annoying at times Users Management Vendor Tech Support Long hours May not be your only job

And the Ugly… Most people don’t understand the job When things go well… Go unnoticed “They don’t do anything”  Game players  Web Surfers, Facebook, etc. Important to document everything

And the Ugly (Con’t.)… When there is a problem… Everyone is looking for you Highly stressful Some blame you for the problem May graduate to “Miracle Worker” status once problem is fixed

Who needs IT? Ready to enlist? Source:

Key CSCI Areas Operating Systems Computer Architecture & Virtualization Security Networking Databases Programming

CSCI Infrastructure Services Web /Spam File Storage Backups Database Account/Directory DNS/DHCP General Computing

CSCI Teaching Services Web Development Services Database Services Virtualization Systems Online Courses/Video Conferencing Research Services Computational Grid Clusters Specialized Windows/Linux Systems Code Repository Services Virtualization Systems

Managing IT Support Server Health – Nagios System Online Service Availability Resource Issues /Text Alerts Server Resource Usage - Ganglia User Requests – RT Ticket System System Documentation - Wikis

Nagios

Ganglia

Ticket Systems

Documentation Wiki

What can I use today? Personal Web Site CS with Spam Filtering Linux system for programming Class Specific MySQL/MSSQL/Oracle Databases LAMP/.NET programming environments Virtualized Servers

Your CS Account Created automatically when first enrolling in a CS course Used to access Linux systems Uses same IU Network ID Personal Storage Area CS Web Pages Remains active until not enrolled in CS classes for 2 consecutive semesters

Account Storage 250MB allocated to each account Purpose Web Pages Saved folders Course & project work Additional space can be requested by advisor/instructor Backups Full - monthly Incremental – daily Backups span 3-4 month period Can request a restore of deleted files

Student Lab Clusters Student Clusters: SL 247 SL 251 JagTag access for non-class times No Pay for Print – use responsibly Please report problems if you see any

Pegasus Server Dell PowerEdge – RedHat Linux General Purpose UNIX server Remote access support Supports CS major courses Secure Shell (SSH) Used to access server remotely Clients available via IUWare (iuware.iu.edu  Communication) SFTP – Transfer files to/from pegasus Remote GUI Support - XMing

CS Client Settings Require SSL and Authentication Incoming: imap.cs.iupui.edu (port 993) Outgoing: mail-relay.iu.edu (port 465) May require you install certificates Webmail: Mail forwarding Create /home/ /.procmailrc :0 !

Spam Filtering Configured Content filters ClamAV – Malware/Phishing Spamassassin – Spam “Bad” messages quarantined Maia Mailguard View Quarantine areas reminders White/black lists Tweak Personal Filtering Settings Log in using CS address and CS password Must log into Maia Mailguard once to start filtering!

Spam Filter Web interface

Personal Web Pages Stored in: /home/ /public_html/ Must be world readable URL: / PHP – Currently Supported Server Side Includes (SSI) – Not supported

Corsair Web Server LAMP-based Model Each user runs own services Apache w/ CGI and PHP support Tomcat JSP Ports assigned at account creation DBA access of personal MySQL database Student Accounts Courses (removed at semester end) Project (removed upon project completion)

In-csci-aspnet -.NET Server Full.NET and MSSQL support Visual Studio development Accessed via Remote Desktop Student Accounts Courses (removed at semester end) Project (removed upon project completion)

Oracle Server Oracle 11g – pegasus.cs.iupui.edu Strictly used for Academic Computing Student Accounts Courses (removed at semester end) Project (removed upon project completion) Passwords generated locally Supports remote database access

Getting Help Request Ticket System: IU Knowledge Base

Questions? Source: