Nov 16

If you want to learn security, or if you already are a security professional/engineer, can you answer the following questions on Security? Do you know the answers to the following questions on Security?

Defensive Security

If you want to learn security, or if you already are a security professional/engineer, can you answer the following questions on Security? Do you know the answers to the following questions on Security?

True or false, all email servers in the Internet are configured properly?

What can you used to check if an email server is configured properly? What tools, and software?

How will you use? What are the steps that you will follow?

What is MXToolbox?

Is MXToolBox still a good security tool? mxtoolbox.com?

When it comes to email server security can you explain what are the following and how they help in security? or what will you do with them when it comes down to Security?
–Open mail relay, server hello, mail reverse DNS, email aliases/group nesting, DNS Servers?

Is outsourcing email server is a great idea? when, when not? why, why not?

How can you secure a DNS server?

Should you allow DNS recursive queries in your organization’s DNS server?

What does segregation mean when it comes down to DNS servers? How will you use Segregation?

What is an internal DNS server? What is an external DNS server? Will you segregate them from security reasons? Why? Why not? What can go wrong?

What is passive DNS? Is it a good idea to implement passive DNS?

SinkHole DNS and Blackhole DNS what are these?

How can you obscure your organizations internal resources from the outside?

Can you configure your SMTP-SSL of 4043? Is it a good move?

What is logging?

What is monitoring?

What are the Logging software that might be great for security?

Did you use a software tool called Nagios? What is this for? How did you use this? Did you see any flaws? Is it easy to use?

What will you log? and why? What is your experience on your approaches?

Will you log everything or just the required stuff? why, why not? when? can you or will you switch to the other from one? What steps will you follow?

Where will you save/store the log data? and why? what are the risks? What are the related approaches?

What is SIEM?

What are the steps in SIEM?

What is log analysis when it comes down to security? What do you want to get out of Log Analysis?

Can you give the names of some important and/or common logging practices for security purposes?

What are user login logging, repeated login failures, login from unusual places/IPs/locations?

Proxy and Firewall logs — what are these?

What is log aggregation?

How can log help to identify brute force attack, data exfiltration, impossible or unlikely user movements, and ransomware?

What are IDS, IPS, and NIDS?

What are snort, suricata, bro?

What is Host Based IDS? How is it different from NIDS? What will you use and why? Will you use both? What are the drawbacks of each one of them?

Where do you put NIDS and IPS? and why? is there any particular strategy that worked for you?

Give some examples of encrypted protocols? How do they relate to NIDS/IDS/IPS?

What is defensive security?

What is offensive security?

What is purple teaming? What is read team and what is blue team?

What is OSINT i.e. Open Source Intelligence?

What are Dumpster diving, Shoulder surfing? What are the related security concepts?

What does the tool Maltego do? Is there any free version?

What is recon-ng? What is Metasploit? What are the different modules of recon-ng? What do they do? How can you use them for security?

What is the Harvester.py?

What is the Responder tool? hint. NetBios, Link Local Multicast Name Resolution

What is RAWr? What does it stand for?
Rapid Access Web Resources

What is the best programming language considering security i.e. when you are developing for your organization what programming language should you use?

Is PHP a secure programming language? How does it compare with Java or Python or C/C++?

Is security is integral to the programming language? or it might depend on the programmer as well? As PHP might be known to be not-a-very secure language: does it come from PHP or from the programmers who do not implement stuff in PHP considering security?

Can a Java/Python/C/C++ software be less secure than PHP?

What is security testing of a software? How does your organization do it?

What is penetration testing?

What is port scanning?

What is vulnerability scanning?

What is Network segmentation? What does it have to do with Security?

What are Physical and logical segmentation?

What is Demilitarized zone (DMZ)?

How VLANs, ACLs, NACs, VPNs help with security? What are risks/limitations in each cases?

What is SDN? Is it good considering security?

By

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Reference: Defensive Security Handbook

Nov 16

Misc. Statistics, Engineering, and Sensors

Learn more about Nonparametric Test
https://www.sciencedirect.com/topics/medicine-and-dentistry/nonparametric-test

Sensor Management for Large-Scale Multisensor-Multitarget Tracking," in Integrated Tracking, Classification, and Sensor Management: Theory and Applications
http://download.e-bookshelf.de/download/0000/7142/31/L-G-0000714231-0002366034.pdf

Approaches to Multisensor Data Fusion in Target Tracking: A Survey
https://www.computer.org/csdl/journal/tk/2006/12/k1696/13rRUxBa56w

Sensor fusion
https://en.wikipedia.org/wiki/Sensor_fusion

Sensor Fusion: Sensor fusion is the process of merging data from multiple sensors such that to reduce the amount of uncertainty that may be involved in a robot navigation motion or task performing.
https://www.sciencedirect.com/topics/engineering/sensor-fusion

Sensor Fusion Tutorials and Applications
http://fusion.isif.org/conferences/fusion2017/Tutorials.html

By

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Nov 13

Real Estate vs Stock Investment

Toronto Property Investors Take Note: Stocks Performed Better

https://www.bloomberg.com/news/articles/2019-11-07/toronto-property-investors-take-note-stocks-performed-better?srnd=premium-canada

—

Vancouver Real Estate Crackdown’s Next Step: A Big Watchdog

https://www.bloomberg.com/news/articles/2019-11-12/vancouver-real-estate-crackdown-s-next-step-a-big-watchdog

Nov 13

TFSA and Retirement income for Canadians

TFSA and Retirement income for Canadians

"In a decade the contribution room has grown to $63,500, or $127,000 for a couple."

"It will be only another five years or so before the aggregate TFSA room climbs to $100,000 per person. At that time a couple in their early forties holding the maximum amount and making yearly contributions growing at 7% will have $1.26 million in tax-free accounts at age 65. That will throw off an income of about $76,000 per year in retirement which will not be counted as income, allowing full CPP and OAS collection. In other words, a household income of at least $110,000, with zero tax.
"

From: https://www.greaterfool.ca/2019/11/12/the-f-factor/

Nov 09

Can you answer these random questions on Data Science Project Development

Questions to answer

1. What does a data science project usually involve? What is the common theme across data science projects?

2. Does industry projects and research projects differ? Why and to what extent?

3. What are the some dataset repositories? Where can you get them?

4. Are all public datasets perfect for doing a project?

5. Can you get one dataset with all required data?

6. if you have different datasets with part of the data that you need — what do you do? do you just abandon the project?

7. True or false. you get a dataset and then directly apply your algorithm to get the answer or to predict?

8. Is there any benefit to check the data details such as see the distribution of the data? mean and median and mode of the data?

9. What are the usual steps in a data science research project?

10. what is univariate analysis?

11. what is bivariate analysis?

12. is multivariate analysis?

13. Why do you do univariate, bivariate or multivariate analysis?

14. What is exploratory data analysis?

15. What are the two types of exploratory data analysis.

16. What are the pros and cons of visualizing the raw data?

17. Is there any need to use clustering while doing data exploration? or this can be more of a methodology of the research process?

18. what is data synthesis?

19. What is study selection?

20. What do the materials and methods section in a data science research project contain?

21. Difference between Methodology and experiment?

22. Difference between Exploratory analysis step and methodology step?

23. What makes a good experiment?

24. what is a regression analysis? Can it be an exploratory analysis? can it be as part of experimental analysis.

25. what is PCA?

26. What is Principal Component Analysis?

27. What is factor analysis?

28. True or false => PCA and Factor analysis do the same thing i,e. they are the same? why, why not explain

29. What is the measure name that indicates whether factor analysis is required or not

30. With PCA, you can always ignore the similar behaving/contributing features?

31. can you find out the purpose of decision trees, SVM, deep learning. is there an opportunity to apply those for the project in concern? to what extent and how? is ther any more work to do for the dataset preparation?

32. Can you write Python code to visualize a feature with a box plot? If not, can you google/startpage to find out the code and implement? What does the Boxplot for this feature saying?

33. what are the prediction methodology used in the project? Which one performed the best? Does the result make sense? Does the perfect result make sense? Do you think there can be bias and the code will not be able to give similar output for other datasets?

34. What are the measures used for prediction performance?

35. What was used for the project: Linear/Polynomial Regression or Logistics Regression. What is a better measure between these two for this project or in general?

36. True or false, Logistic regression is for Regression

37. True or false, Linear regression is for Classification

38. What is the significance of R square? Low or high values of R square is desirable to say that the Regression outcome is important?

39. What is f-score?

40. What is the train-test-split method in Python?

41. Did I use SQL in the project? Was that a must? What else could you do?

42. Can you join multiple dataframe (i.e. table) in Python? Do you have left, right, inner or similar joins in Python.

By

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Nov 08

Reindex magento data using PHP (Shell) and Command Line

You can go to the shell folder, and run the following to reindex everything

php indexer.php –reindexall

Magento 2 has similar command line features.

php bin/magento indexer:reindex

—
To reindex individually

php yourmagentofolder/shell/indexer.php -reindex catalog_product_attribute
php yourmagentofolder/shell/indexer.php -reindex catalogsearch_fulltext
php yourmagentofolder/shell/indexer.php -reindex catalog_category_flat
php yourmagentofolder/shell/indexer.php -reindex cataloginventory_stock
php yourmagentofolder/shell/indexer.php -reindex catalog_category_product php yourmagentofolder/shell/indexer.php -reindex catalog_product_price
php yourmagentofolder/shell/indexer.php -reindex tag_summary
php yourmagentofolder/shell/indexer.php -reindex catalog_url

Reference:https://magento.stackexchange.com/questions/162166/how-to-reindex-magento-1-x-by-using-command-line
Sure, I also executed these/similar myself…

—

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Nov 03

Example Health Condition Visualization

Example Health Condition Visualization. Only a doctor (related professional) can justify if the information is correct. Just the visualization. From: https://www.parathyroid.com/hyperparathyroidism-diagnosis.htm

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Nov 03

Robotics: growth potential

Robotics: growth potential doesn’t mean investment returns. Don’t get over excited when it comes to Investing.

https://lnkd.in/e5ZSX93

https://www.greaterfool.ca/wp-content/uploads/2019/11/DOUG-1.jpg

From: https://lnkd.in/e9tbFH5

Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

If you want to contribute to the operation of this site including occasional free online training (using Skype, Zoom.us): http://Training.SitesTree.com (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal. Sometime, we also provide

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz

Nov 03

Bangladesh Startup News

‘
Future Startup Weekly

Nov 02

Might be of Interest to the readers of this platform

Self Learning AI-Agents Part II: Deep Q-Learning
https://towardsdatascience.com/self-learning-ai-agents-part-ii-deep-q-learning-b5ac60c3f47

Canada’s flawed financial advice industryCommissions and conflicting interests persist – when are we going to get the value we deserve?
https://www.morningstar.ca/ca/news/196072/canadas-flawed-financial-advice-industry.aspx

Whatever the Future Holds, Stocks Are Not Priced for a Recession
https://www.bloomberg.com/news/articles/2019-10-06/whatever-the-future-holds-stocks-are-not-priced-for-a-recession?srnd=premium-canada

Machine Learning Model Deployment: Strategy to Implementation
https://www.youtube.com/watch?v=xEG8u62TB2Q

—
Sayed Ahmed

Linkedin: https://ca.linkedin.com/in/sayedjustetc

Blog: http://Bangla.SaLearningSchool.com, http://SitesTree.com
Online and Offline Training: http://Training.SitesTree.com

Affiliate Links:
Hottest Deals on Amazon USA: http://tiny.cc/38lddz

Hottest Deals on Amazon CA: http://tiny.cc/bgnddz

Hottest Deals on Amazon Europe: http://tiny.cc/w4nddz



However, if you want to contribute to the operation of this site (or charitable/non-profit work in the education sector), you can financially contribute to: safoundation at salearningschool.com using Paypal.