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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...原理：
当用户通过extmail登陆时，首先extmail先去通过mysql进行虚拟用户认证，当认证通过时，postfix通过Cyrus-SASL这个函数库，这个认证框架，结合Courier-authlib对发信人进行认证，通过检索Mysql数据库中的数据来进行认证，以此来...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...tp://www.realworldtech.com/page.cfm?ArticleID=RWT091810191937&p=6
it's quite clear what happens.
In contrast, it should be easier to reach peak performance on AMD (Bulldozer) as the INT and FP/SIMD pipes have separate issue ports with their own scheduler.
This is only theoretical as I have nei...
Difference between MEAN.js and MEAN.io
...installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?".
5 Answers
...
Programmer Puzzle: Encoding a chess board state throughout a game
Not strictly a question, more of a puzzle...
31 Answers
31
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What is the maximum length of a URL in different browsers?
...ased forms that could generate
such URIs. A server SHOULD return
414 (Request-URI Too Long) status if a
URI is longer than the server can
handle (see section 10.4.15).
That RFC has been obsoleted by RFC7230 which is a refresh of the HTTP/1.1 specification. It contains similar language, but al...
Comparison between Corona, Phonegap, Titanium
...ter.
Updated 8/13/2010:
Link to a Titanium employee's answer to Mickey's question.
Updated 12/04/2010:
I decided to give this post an annual review to keep its information current. Many things have changes in a year that made some of the information in the initial post outdated.
The biggest ...
How to implement classic sorting algorithms in modern C++?
...re elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort.
2 Answers
...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
...= new Crypt_RSA();
$rsa->loadKey('-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA61BjmfXGEvWmegnBGSuS
+rU9soUg2FnODva32D1AqhwdziwHINFaD1MVlcrYG6XRKfkcxnaXGfFDWHLEvNBS
EVCgJjtHAGZIm5GL/KA86KDp/CwDFMSwluowcXwDwoyinmeOY9eKyh6aY72xJh7n
oLBBq1N0bWi1e2i+83txOCg4yV2oVXhBo8pYEJ8LT...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
"Pretty links" is an often requested topic, but it is rarely fully explained. mod_rewrite is one way to make "pretty links", but it's complex and its syntax is very terse, hard to grok, and the documentation assumes a certain level of proficiency in HTTP. Can someone explain in simple terms how "p...
Split string into an array in Bash
...ase fields may be separated by either a comma or a space rather than the sequence of the two characters. Interestingly though, empty fields aren't created when comma-space appears in the input because the space is treated specially.
To access an individual element:
echo "${array[0]}"
To iterate ...