Andrew Szajlai

Week 14 Update

April 19, 2018 by Andrew Szajlai 19 Comments

Good morning,

This week we will look at Unix/Linux network controls.

We are reviewing for our 2nd test, please bring all your questions, we will be taking time to complete the University survey. After everyone has their questions answered we will begin the quiz will be released for this week.

If anyone has any questions as always please reach out to me and I’ll be happy to work with you.

In The News:

When Identity Thieves Hack Your Accountant

The Internal Revenue Service has been urging tax preparation firms
- https://krebsonsecurity.com/2018/04/when-identity-thieves-hack-your-accountant /

Use of Secure VPN to use the internet

Protect you browsing from your ISP
- http://thehackernews.com/2017/03/secure-vpn-services.html

‘iTunes Wi-Fi Sync’ Feature Could Let Attackers Hijack Your iPhone, iPad Remotely

Why you should always carry your…
- https ://thehackernews.com/2018/04/iphone-itunes-wifi-sync.html

This weeks slides: Week_14

Week 13 Update

April 16, 2018 by Andrew Szajlai 14 Comments

Good Morning,

This week we talked about firewall rules and the differences between the configurations on Windows and that of Unix/Linux. The concepts were the same between both styles of operating systems; however logging configurations to notify us via logs entries were drastically different.

Thinking of the tools we have used so far what were some similarities between these two operating systems?

In The News:

This week; I’ll leave it to all of you to find interesting things in the news…

The slides from this week: Week_13

Week 12 Update

April 10, 2018 by Andrew Szajlai 21 Comments

Good Morning,

We had a very interesting week. We all I think learned a lot about Google Cloud. I know I really learned a bunch about pros and cons. One large pro for me was the speed of building computers; a con was the ability for me to use the OS of my choice. This week I really would like to change what we talk about and go over two or three pros and cons each person got from using google cloud. If you are not able to we can also find something interesting you have found in security from our normal places.

Here are the condensed slide for week 12: Week_12

Also I have shared the videos for installing Debian on Owl Box.

Week 11 Update

March 29, 2018 by Andrew Szajlai 35 Comments

Good afternoon,

Here is the slides for tonight: Week_11

In The News:

Unix/Linux
- How many devices in your enterprise are running it?
  - Dr. Eric Cole URL is On-Line
Omitting the “o” in .com Could Be Costly
- Why companies buy miss-spelling of their company’s URL
  - https://krebsonsecurity.com/2018/03/omitting-the-o-in-com-could-be-costly/
Atlanta Ransome-ware…
- Time Is Running Out For Atlanta In Ransomware Attack
  - Lots of sites

Week 10 Update

March 22, 2018 by Andrew Szajlai 31 Comments

Here are the slides for tonight: Week_10

The In the news section from tonight slide below.

In The News:

Survey: Americans Spent $1.4B on Credit Freeze Fees in Wake of Equifax Breach
- Almost 20 percent of Americans froze their credit file
  - https://krebsonsecurity.com/2018/03/survey-americans-spent-1-4b-on-credit-freeze-fees-in-wake-of-equifax-breach /
15-Year-old Finds Flaw in Ledger Crypto Wallet
- Hardware wallets like those sold by Ledger are designed to protect the user’s private keys
  - https://krebsonsecurity.com/2018/03/15-year-old-finds-flaw-in-ledger-crypto-wallet /
Who Is Afraid of More Spams and Scams?
- Security researchers who rely on data included in Web site domain name records to combat spammers and scammers will likely lose access
  - https://krebsonsecurity.com/2018/03/who-is-afraid-of-more-spams-and-scams/

Team Creation

February 6, 2018 by Andrew Szajlai 1 Comment

Good afternoon,

I have sent out the current teams as well as those that are not part of a team. I’ve created this post for you to form teams, if you want me to just place you on a team please send me an e-mail. Either way I’ll create and update the Black Board document Friday morning 2/9 with what is here and what I have gotten as e-mail for the final teams for future assignments.

Week 2 Update

January 22, 2018 by Andrew Szajlai 63 Comments

Good afternoon,

Here are the slides for today’s class: Operating-Systems-Week2

If everything is up and running here are the couple of topics of “In the News” from slide 8:

IntelChronicle: A Meteor Aimed At Planet Threat Intel?: https://krebsonsecurity.com/2018/01/chronicle-a-meteor-aimed-at-planet-threat-intel
IoT BotnetsExpert: IoT Botnets the Work of a ‘Vast Minority’: https://krebsonsecurity.com/2018/01/expert-iot-botnets-the-work-of-a-vast-minority
Hacked CamerasHacked Cameras, DVRs Powered Today’s Massive Internet Outage: https://krebsonsecurity.com/2016/10/hacked-cameras-dvrs-powered-todays-massive-internet-outage

If anyone has an questions please reach out and I will get back to you asap.

Week 09 – Update

March 15, 2017 by Andrew Szajlai 23 Comments

Good Morning,

We will use week 07 for posts this week. Please use what we had before the break as a page to post items you have found.

Here are tonights slides minus the “In the News”: Week 09

Week 7 Update

March 5, 2017 by Andrew Szajlai 23 Comments

Good Evening,

Wanted to take a couple minutes to talk about the main topics from this weeks class. Firewalls – a way to protect what and who (in terms of computers) can connect to our operating systems. What we did:

Install Telnet Server and client on our DC
Install Telnet client on our Windows 7 computer
Built a firewall rule to allow talent from our Windows 7 computer to our Window 2008 DC
Built an IPSec rule to protect a protocol that can not protect itself
WireShark Capture of Telnet with IPSec and without
- Can you use WireShark to extract what command I ran after connected to the server via Telnet.
  - e-mail me for a 5-point extra credit bonus towards your final grade; you have two weeks from tonight March 14th; 11:59.

* Links to the videos are on: Week_07_Firewalls

This weeks Slides: Week 7

Week 6 Update

February 24, 2017 by Andrew Szajlai 3 Comments

Good morning,

I just wanted to continue with the way we have been running the class. Post the slide before class; try the night before, but missed that goal this week. I really liked what I read on the community site, I use almost all the post from the site this week. I have also looked at the quizzes from last week. I’ll talk about that tonight.

The put the quiz for tonight to start about the end of class at it will be out there till the night before the next time we meet or one week out based on what the schedule brings.

This weeks slides: Week 6

In the News:

Article: Domain Theft Strands Thousands of Web Sites
- Three domains belonging to Newtek Business Services Corp. [NASDAQ:NEWT]
  - https://krebsonsecurity.com/2018/02/domain-theft-strands-thousands-of-web-sites/
February Updates from Adobe, Microsoft
- Windows (SMB) could let attackers crash Windows 8.1, and Windows 10 systems, as well as server equivalents of those platforms.
  - https://krebsonsecurity.com/2017/02/february-updates-from-adobe-microsoft/
New EU Privacy Law May Weaken Security
- The European Union’s General Data Protection Regulation (GDPR)
  - https://krebsonsecurity.com/2018/02/new-eu-privacy-law-may-weaken-security/