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How to run cron job every 2 hours
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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X-Frame-Options Allow-From multiple domains
...u can just use X-Frame-Options: deny.
BTW, for now Chrome (and all webkit-based browsers) does not support ALLOW-FROM statements at all.
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How can I open a cmd window in a specific location?
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64
Try out this "PowerToy" from Microsoft:
Open Command Window Here
This PowerToy adds an...
Set 4 Space Indent in Emacs in Text Mode
...right.
'(tab-stop-list (quote (4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100 104 108 112 116 120))))
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Comparison of DES, Triple DES, AES, blowfish encryption for data
...-forced, as has been demonstrated more than ten years ago). Also, DES uses 64-bit blocks, which raises some potential issues when encrypting several gigabytes of data with the same key (a gigabyte is not that big nowadays).
3DES is a trick to reuse DES implementations, by cascading three instances o...
Why is Java's boolean primitive size not defined?
... (O'Reilly) says a boolean primitive type is 1 byte. That could be wrong, based on what the examination of the heap is showing. I wonder if most JVMs have issues with allocating less than a byte for variables.
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emacs, unsplit a particular window split
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Is there a performance gain in using single quotes vs double quotes in ruby?
...the cost is at compile time not at run time, so the highly-voted benchmark-based answers above are misleading.
– nohat
Dec 4 '11 at 20:07
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Path to Powershell.exe (v 2.0)
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Searching based on the executable being powershell.exe is a little too relaxed, since you could easily rename another executable to powershell.exe, and have it pick up that process instead. Get-Process -Id $PID would work, though I'm n...
CREATE TABLE IF NOT EXISTS equivalent in SQL Server [duplicate]
...re name='cars' and xtype='U')
create table cars (
Name varchar(64) not null
)
go
The above will create a table called cars if the table does not already exist.
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