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The definitive guide to form-based website authentication [closed]
...se them only as a last resort when a user has failed to log in a number of times and throttling delays are maxed out. This will happen rarely enough to be acceptable, and it strengthens the system as a whole.
Storing Passwords / Verifying logins
This may finally be common knowledge after all the hig...
How to convert Milliseconds to “X mins, x seconds” in Java?
I want to record the time using System.currentTimeMillis() when a user begins something in my program. When he finishes, I will subtract the current System.currentTimeMillis() from the start variable, and I want to show them the time elapsed using a human readable format such as "XX hours, XX ...
How to run crontab job every week on Sunday
...ther of these:
5 8 * * 0
5 8 * * 7
5 8 * * Sun
Where 5 8 stands for the time of the day when this will happen: 8:05.
In general, if you want to execute something on Sunday, just make sure the 5th column contains either of 0, 7 or Sun. You had 6, so it was running on Saturday.
The format for cro...
Check if a String contains numbers Java
...think is just to escape the second backslash) and \d+ means a digit from 1 time to infinite.
– Giudark
Sep 29 '16 at 0:11
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How can I view live MySQL queries?
...HOW FULL PROCESSLIST; to see what queries are being processed at any given time, but that probably won't achieve what you're hoping for.
The best method to get a history without having to modify every application using the server is probably through triggers. You could set up triggers so that every...
How to implement the activity stream in a social network
... a batch of activities by activity ID or by using a set of friend IDs with time constraints.
Publish the activity IDs to Redis whenever an activity record is created, adding the ID to an "activity stream" list for every user who is a friend/subscriber that should see the activity.
Query Redis to...
How do I “git blame” a deleted line?
...ommand to show a reversed git log. The first commit shown will be the last time that line appears, and the next commit will be when it is changed or removed.
git log --reverse --ancestry-path COMMIT^..master
share
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What exactly are iterator, iterable, and iteration?
...s a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, to go over a group of items, that is iteration.
In Python, iterable and iterator have specific meanings.
An iterable is an object that has an __iter__ method which returns an itera...
What are Runtime.getRuntime().totalMemory() and freeMemory()?
I've been wondering what the exact meaning of Runtime.getRuntime().totalMemory() , Runtime.getRuntime().freeMemory() , and Runtime.getRuntime().maxMemory() is.
...
Pipe output and capture exit status in Bash
...olution. It's also something that's worth thinking about in general as any time you're doing a long-running command a name pipe is often the most flexible way. It's worth noting that some systems don't have mkfifo and may instead require mknod -p if I remember right.
– Haravikk...