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Mac OSX Lion DNS lookup order [closed]
After upgrading to Mac OSX Lion I figured out that /etc/hosts is not looked up in first place for name resolution anymore. This leads to some side effects like:
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How to check if one of the following items is in a list?
...d answer, but if one list is very long and the other is short, is there an order that would yield faster performance? (i.e., x in long for x in short vs x in short for x in long)
– Luke Sapan
Feb 13 '14 at 18:08
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How should I choose an authentication library for CodeIgniter? [closed]
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Unactivated accounts auto-expire
Simple yet effective error handling
Uses phpass for hashing (and also hashes autologin codes in the DB)
Does not use security questions
Separation of user and profile data is very nice
Very reasonable security model around failed login attempts (good protection agai...
Get visible items in RecyclerView
...emPosition();
For LinearLayoutManager, first/last depends on the adapter ordering. Don't query children from RecyclerView; LayoutManager may prefer to layout more items than visible for caching.
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What is the best Distributed Brute Force countermeasure?
...', where a user must be connected from one of his recognized 'good' IPs in order to log in at all. A brute-force attack on this 'front door' would be practically impossible(+).
(+) unless the attacker 'owns' either the server, all our users' boxes, or the connection itself -- and in those cases, we...
Favourite performance tuning tricks [closed]
...arting the query
Check that all processes are accessing tables in the same order
Are indices being used appropriately?
Joins will only use index if both expressions are exactly the same data type
Index will only be used if the first field(s) on the index are matched in the query
Are clustered i...
Are there best practices for (Java) package organization? [closed]
...like:
beans
factories
collections
are wrong.
I prefer, for example:
orders
store
reports
so I can hide implementation details through package visibility. Factory of orders should be in the orders package so details about how to create an order are hidden.
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2 column div layout: right column with fixed width, left fluid
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Fantastic, simple solution and keeps the correct HTML order too!
– user1794295
Jul 11 '14 at 15:16
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How does HashSet compare elements for equality?
...y the default equality comparer.
Note how none of this is in terms of an ordered comparison - which makes sense, as there are certainly situations where you can easily specify equality but not a total ordering. This is all the same as Dictionary<TKey, TValue>, basically.
If you want a set w...
How does having a dynamic variable affect performance?
...18ms
LazyILEmitted: 14.3483ms
So while using the dynamic keyword takes an order of magnitude longer than calling the method directly, it still manages to complete the operation a million times in about 50 milliseconds, making it far faster than reflection. If the method we call were trying to do so...