How Do Troubleshoot “write failed” or “quota exceeded”?

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Problem scenario
You are using Linux and, you get an error like “write failed” or “quota exceeded.” What should you do?

Possible Solution #1
Delete files. Has a runaway program created too many files recently?

Possible Solution #2
You may want to run a quotacheck command because the quota statistics have not been updated.

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What Can You Do when Your Weightlifting Shoes Are Too Tight?

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Problem scenario
You bought new weightlifting shoes. They seem to tight. They are not comfortable. What should you do?

Possible Solution #1
If only one shoe feels too tight, can you see if the tongue is double-up or folded on one side? By flattening it or unravelling it, that may help.

Possible Solution #2
Can you make the velcro strap connect without as much force and tightness?

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How Difficult Is It to Change a Headlight Bulb?

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Problem scenario
A head lamp bulb needs to be replaced on a car. How difficult is it?

Answer
It is usually fairly easy and does not require tools. Changing blinkers (turn signal bulbs) and headlights is often straight-forward. The bulbs for headlights are smaller than you would think; normally they are much smaller than a typical household lightbulb.

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What Can Go Wrong if You Try to Remove a Car Stereo?

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Problem scenario
You want to remove a car stereo. Can something go wrong if so what should you look out for?

Solution
Yes. The airbags could be triggered. The car alarm could go off. Some anti-theft devices sound an alarm if the car stereo is tampered with.

You do not want the airbags to potentially inflate suddenly causing injury to you.

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Security Quiz

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1. Most security vulnerabilities are from new or previously unknown problems. True or False?

2. What is one of the protocols IPsec uses to secure IP layer communications?

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3. What is defense in depth (or DiD)?

a. A type of highly-secure cryptography for data at rest.
b. A type of highly-secure cryptography for data in transit.
c. Both of the above.
d. The implementation of a combination of security measures that may be disparate and redundant for achieving security from a pragmatic perspective.

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