Easily Maintain Multiple Websites with SSH

Over the past two weeks, here, and here, I told you how to set up SSH so your remote access is both more secure and more convenient. Let’s put that to use! The Scenario Let’s say that you maintain a website, and you create and edit pages on both your office desktop computer and your […]
Read More ›

How to Set Up An SSH Key Agent

Last week I showed you how to set up cryptographic authentication for SSH. We got as far as the more secure part. In an analysis of a multi-year collection of several million SSH break-in attempts I didn’t see one that tried guessing cryptographic keys. Willie Sutton supposedly said that he robbed banks because that’s where […]
Read More ›

How Can We Create Secure Passwords?

What makes a password secure? We have to keep the bad guys out while letting the legitimate user in. We need to protect authentication and prevent user identity masquerading or spoofing, so it must be impractical for the attacker to guess it. I didn’t say “impossible” because any string could be guessed eventually. But impractical, […]
Read More ›

Linux Tutorial: Finding Duplicates

What’s the Problem? Someone brought this data de-duplication problem to me: There’s an ever-growing collection of video files. For reasons out of our control, the collection process leads to duplicate uploads. A file will get a unique name, unique timestamp, all its metadata unique, but it’s an identical copy of an existing file that has […]
Read More ›

Set Up SSH Keys For Easier And More Secure Authentication

This week I will show you how to set up cryptographic authentication. Two Benefits at Once! Security and convenience are usually at odds, an increase in one usually has the collateral damage of driving the other one down. But cryptographic authentication is a rare opportunity to make things both more secure and easier to use. […]
Read More ›

Type to search blog.learningtree.com

Do you mean "" ?

Sorry, no results were found for your query.

Please check your spelling and try your search again.