Updated: 2014-03-09 12:20 EDT

1 Readings, Assignments, Labs, and ToDo

1.1 Assignments this week

Check the due date for each assignment and put a reminder in your agenda, calendar, and digital assistant.

1.2 Lab work this week

The worksheets are available in four formats: Open Office (ODT), PDF, HTML, and Text. Only the Open Office format allows you “fill in the blanks” in the worksheet. The PDF format looks good but doesn’t allow you to type into the blanks in the worksheet. The HTML format is crude but useful for quick for viewing online.

Do NOT open the ODT files using any Microsoft products; they will mangle the format and mis-number the questions. Use the free Libre Office or Open Office programs to open these ODT documents. On campus, you can download Libre Office here.

3 From the Classroom Whiteboard/Chalkboard

3.1 Errors in submitted assignment01.txt

As of Sunday the following students have not Read All The Words in Assignment 1 and will not be getting marks:

xxxxxxxx: Bad file name: assignment01.txt.txt
xxxxxxxx: Text found in Blackboard submisssion box (ignored)
xxxxxxxx: Bad file name: assignment.txt
xxxxxxxx: Bad file name: Assignment 1.txt
xxxxxxxx: Text found in Blackboard submisssion box (ignored)

3.2 Midterm Test Dates

4 Real Sysadmin Work

Use open source software in preference to proprietary or closed source alternatives, in particular for operating systems, networking software, Web servers, databases and programming languages.

Problems which are rare, or specific to a domain may be best answered by using software as a service, or by installing proprietary software. In such cases, take care to mitigate the risk of lock-in to a single supplier by ensuring open standards are available for interfaces.

For unique needs and common problems which have yet to be solved well elsewhere, develop software by coding in the open and publish under an open source licence.


4.1 Internet Attacks on my machines

I log attacks on my machines. I compared the yesterday attack logs from home (TekSavvy – hit by 32 attack addresses) and my school desktop machine (Algonquin – hit by 50 attack addresses) and found three common attack addresses, two in China and one in India. These three addresses tried to use an SSH login to both my home and my Algonquin machines. Should I worry?

From China:

$ whois
netname:        CHINANET-JX
descr:          CHINANET Jiangxi province network
descr:          China Telecom
descr:          No.31,jingrong street
descr:          Beijing 100032

$ whois 163data.com.cn
Domain Status: inactive
Registrant: 中国电信集团公司
Registrant Contact Email: domain@chinatelecom.com.cn
Sponsoring Registrar: 北京万网志成科技有限公司
The Plans for your Career

The Plans for your Career

Read All The Words 2014

Read All The Words 2014

Read All The Words 2012

Read All The Words 2012

Take Notes in Class

Take Notes in Class

| Ian! D. Allen  -  idallen@idallen.ca  -  Ottawa, Ontario, Canada
| Home Page: http://idallen.com/   Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom:  http://eff.org/  and have fun:  http://fools.ca/

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