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How should I ethically approach user password storage for later plaintext retrieval?
As I continue to build more and more websites and web applications I am often asked to store user's passwords in a way that they can be retrieved if/when the user has an issue (either to email a forgotten password link, walk them through over the phone, etc.) When I can I fight bitterly against thi...
What do the plus and minus signs mean in Objective-C next to a method?
In Objective-C, I would like to know what the + and - signs next to a method definition mean.
4 Answers
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XPath with multiple conditions
...hat XPath can I use to select any category with a name attribute specified and any child node author with the value specified.
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Why am I suddenly getting a “Blocked loading mixed active content” issue in Firefox?
...visits a page served over HTTP, their connection is open for eavesdropping and man-in-the-middle (MITM) attacks. When a user visits a page served over HTTPS, their connection with the web server is authenticated and encrypted with SSL and hence safeguarded from eavesdroppers and MITM attacks.
Howeve...
How can I build a small operating system on an old desktop computer? [closed]
...things first. Read, read, read, read, read. You need to have a firm understanding of how the OS works before you can hope to implement your own.
Grab one of Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Op...
How to check if an array field contains a unique value or another array in MongoDB?
...n the help: mongodb.org/display/DOCS/…
– Scott Hernandez
Mar 20 '11 at 4:31
2
for the $all does...
How to read a single char from the console in Java (as the user types it)?
...t you want to do is put the console into "raw" mode (line editing bypassed and no enter key required) as opposed to "cooked" mode (line editing with enter key required.) On UNIX systems, the 'stty' command can change modes.
Now, with respect to Java... see Non blocking console input in Python and ...
How can I put the current running linux process in background? [closed]
I have a command that uploads files using git to a remote server from the Linux shell and it will take many hours to finish.
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Where can I learn how to write C code to speed up slow R functions? [closed]
...for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R?
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How do I call some blocking method with a timeout in Java?
Is there a standard nice way to call a blocking method with a timeout in Java? I want to be able to do:
10 Answers
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