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开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...活的配置特性可以使整个系统的运行成本大大降低。
1.1、postfix的邮件队列（mail queues）
postfix有四种不同的邮件队列，并且由队列管理进程统一进行管理：
1． maildrop：本地邮件放置在maildrop中，同时也被拷贝到incoming中。 ...
How to exclude a module from a Maven reactor build?
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I had moved from 3.1 to 3.2.1 without any issues. But to be honest, you would have to do a build to figure it out.
– Yogesh_D
Aug 14 '14 at 6:14
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Which is faster in Python: x**.5 or math.sqrt(x)?
...(x) is always faster than x**.5 on another machine (Ubuntu, Python 2.6 and 3.1):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
10000000 loops, best of 3: 0.173 usec per loop
$ python -mtimeit -s"from math import sqrt; x = 123" "sqrt(x)"
10000000 loops, best of 3: 0.115 usec per loop
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Change IPython/Jupyter notebook working directory
... Notice that this solution must be slightly changed with Ipython 3.1 as --pylab is not supported any longer. instead of ipython notebook "--pylab inline" write "ipython notebook"
– tagoma
Apr 5 '15 at 13:25
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Get Folder Size from Windows Command Line
...\dotnet
140,67 C:\my\Tools\vscode
97,33 C:\my\Tools\apache-jmeter-3.1
54,39 C:\my\Tools\mongoadmin
47,89 C:\my\Tools\Python27
35,22 C:\my\Tools\robomongo
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Understanding REST: Verbs, error codes, and authentication
...roprietary status code extensions. So you might see a response like:
HTTP/1.1 404 Not Found
X-Status-Extended: 404.3 More Specific Error Here
That way a HTTP client like a web browser will still know what to do with the regular 404 code, and a more sophisticated HTTP client can choose to look...
Check if all elements in a list are identical
... | | | | |
| s7 | 3.1 usec | 1.4 usec | 1.24 usec | 0.932 usec | 1.92 usec |
| s8 | 4.07 usec | 1.54 usec | 1.28 usec | 0.997 usec | 1.79 usec |
| s9 | 5.91 usec | 1.25 usec | 0.749 usec | 0.407 usec ...
Getting Java version at runtime
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but soon we will have version 1.1 again... or maybe instead of 1.10 we start with 2.0 [:-)
– user85421
Aug 4 '16 at 11:27
7
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Is it possible to make the -init method private in Objective-C?
...r version or switches? (I'm just using the default gcc switches with XCode 3.1)
– philsquared
Feb 17 '09 at 13:37
3
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Creating an R dataframe row-by-row
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is this still true in R 3.1 where this should be faster?
– userJT
Dec 11 '14 at 12:12
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