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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...ce sendmail stop
chkconfig sendmail off
3、配置编译环境，安装开发包组
yum groupinstall -y "Development Tools" "Development Libraries"
二、启动所需服务
1、安装启动mysql
mysql的安装具体过程这里不在详述，我的博客中其他文章中多次写出过。...
Factors in R: more than an annoyance?
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@Eduardo I got 4Kb vs 4.2Kb. For N=100000 I got 391.5 Kb vs 391.8 Kb. So factor takes little more memory.
– Marek
Aug 10 '10 at 7:50
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How to access the content of an iframe with jQuery?
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@jperezmartin: You will have to use some javascript library that will transfer information between main page and iframe. Basically its been denied by browser because of Cross Browser functionality. I am sorry, I am not aware of any such library because I never required ...
How do I reset the scale/zoom of a web app on an orientation change on the iPhone?
...dth=device-width, initial-scale=1">
Then disable scalability with javascript on load until gesturestart when you allow scalability again with this script:
if (navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPad/i)) {
var viewportmeta = document.querySelector('meta[name=...
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
... the trailing linebreak and it will print the same checksum as your python script:
> echo -n mystringforhash | md5sum
86b6423cb6d211734fc7d81bbc5e11d3 -
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how to schedule a job for sql query to run daily?
...select 'New Job'
In the 'New Job' window enter the name of the job and a description on the 'General' tab.
Select 'Steps' on the left hand side of the window and click 'New' at the bottom.
In the 'Steps' window enter a step name and select the database you want the query to run against.
Paste in the...
Why does String.valueOf(null) throw a NullPointerException?
...ant to explicitly cast null (examples to follow)
See also
Polymorphism vs Overriding vs Overloading
Method Overloading. Can you overuse it?
On casting null
There are at least two situations where explicitly casting null to a specific reference type is necessary:
To select overloading (as ...
What tools to automatically inline CSS style to create email HTML code? [closed]
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Check the premailer.dialect.ca online converter or this Python script to do it.
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What requirement was the tuple designed to solve?
...imes I'm wanted to express data as a Tuple, and not had Tuples available. (VS2008) in which case I've just created my own Tuple class - and I don't make it thread safe (immutable).
So I guess I'm of the opinion that Tuples are lazy programming at the expense of losing a type name that describes i...
What's the best way to distribute Java applications? [closed]
...y rpm or deb packager. For win32 try http://en.wikipedia.org/wiki/Nullsoft_Scriptable_Install_System
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