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AppZ收录，使用标签：bash, substring, function, collect, learn，时间：2008-9-18 16:10:33 | 相关网摘，我也收藏
A snippet from the man page for bash:
${parameter:offset:length}
Substring Expansion. Expands to up to length char-
acters of parameter, starting at offset. If length
is omitted, expands to the substring of parameter,
starting at the character specified by offset.
length and offset are arithmetic expressions (see
ARITHMETIC EVALUATION below). length must evaluate
to a number greater than or equal to zero. If off-
set evaluates to a number less than zero, the value
is used as an offset from the end of the value of
parameter. If parameter is @, the result is length
positional parameters beginning at offset. If
parameter is an array name indexed by @ or *, the
result is the length members of the array beginning
with ${parameter[offset]}. Substring indexing is
zero-based unless the positional parameters are
used, in which case the indexing starts at 1.
http://www.cygwin.com/ml/cygwin/1999-07/msg00269.html
AppZ收录，使用标签：php, collect, learn，时间：2008-9-13 17:52:15 | 相关网摘，我也收藏
Features of TightURL:
Written in PHP, uses MySQL to store URL table. May be adapted in the future to allow use of PostgreSQL and SQLite also.
Highly customizable by editing configuration variables and HTML templates.
All browser output is template-based. (except the fatal error screens)
Checks submitted and accepted URLs against SURBL and URIBL to prevent abuse by the Bad People of the Internet. Please consider making a donation to these well-run and important Internet resources.
TightURL is Free Software, licensed under the GNU GPL.
http://tighturl.com/project/
AppZ收录，使用标签：css, howto, collect, learn，时间：2008-7-31 11:15:12 | 相关网摘，我也收藏
CSS布局大全：40多个教程，提示，例子和最佳实践
2008-07-30 by 副主编 QQbyte
评论(10) 有1257人浏览
声明：JavaEye新闻文章的版权属于JavaEye网站所有，严禁任何网站转载本文，否则必将追究法律责任！
CSS布局大全：40多个教程，提示，例子和最佳实践
CSS布局教程
1-Three column fixed layout structure using CSS- 这篇文章解释了如何显示HTML/CSS基本结构。
--------------------------------------------------------------------------------
2-Design page layout using CSS- 如何设计页面布局教程。
http://www.javaeye.com/news/3053
AppZ收录，使用标签：learn, collect, linux, Iptables，时间：2008-7-15 16:57:29 | 相关网摘，我也收藏
请问做LINUX端口映射具体是不是要修改iptables 进行编辑啊
还是直接打命令就可以 高手指点一下啊[/quote]
都可以呀，直接命令就是如果机子重启后就没有了
修改文本的话，重启还有的。
例如，将外网地址xxx.xxx.xxx.xxx的3000端口映射到内网192.168.2.6的3000端口上：
# DNAT
/sbin/iptables -t nat -A PREROUTING -i xxx.xxx.xxx.xxx -p tcp --dport 3000 -d xxx.xxx.xxx.xxx -j DNAT --to 192.168.2.6
# SDAT
/sbin/iptables -t nat -A POSTROUTING -o xxx.xxx.xxx.xxx -p tcp --dport 3000 -s 192.168.2.6 -j SNAT --to xxx.xxx.xxx.xxx
http://bbs.chinaunix.net/archiver/?tid-604782.html
AppZ收录，使用标签：vc, collect, learn，时间：2008-7-12 13:44:02 | 相关网摘，我也收藏
着网络安全问题日益严重，广大用户对网络安全产品也越来越关注。防火墙作为一种网络安全工具，早已受到大家的青睐。在PC机上使用的个人防火墙，很大程度上成为广大网民的安全保护者。Windows下的个人防火墙都是基于对数据报的拦截技术之上。当然在具体的实现方式上它们却有很大的不同。总的来说可分为用户级和内核级数据报拦截两类。其中内核级主要是TDI过滤驱动程序，NDIS中间层过滤驱动程序，NDIS过滤钩子驱动程序等，它们都是利用网络驱动来实现的；而用户级的过滤包括SPI接口，Windows2000包过滤接口等。本文主要讲述基于SPI的包过滤实现，它是Winsock 2的一个新特性。
http://www.vckbase.com/document/viewdoc/?id=643#A5
AppZ收录，使用标签：collect, good, learn，时间：2008-7-4 14:51:58 | 相关网摘，我也收藏
OFF, or the Owner-Free Filesystem is a distributed filesystem in which everything is stored in reference to randomized data blocks, as opposed to a 1:1 copy of the original data being inserted. The creators of the Owner-Free Filesystem have coined a new term to define the network: A brightnet. Nobody shares any copyrighted files, and therefore nobody needs to hide away.
http://offsystem.sourceforge.net/
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