老K的笔记

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A way to share content News stories Movies and MP3’s Blog entries Use XML to store data They don’t require the user to visit the site/resource in which the content is coming from RSS and Atom are the most popular web feed formats in use

This paper discusses abusing Microsoft SQL Query wildcards to consume CPU in database servers. This can be achieved using only the search field present in most common web applications1. If an application has the following properties then it is highly possibly vulnerable to wildcard attacks: 1- An SQL Server Backend; 2- More than 300 records in the database and around 500 bytes of data per row; 3- An application level search feature. As you might notice I have just described 90% of Microsoft SQL Server based CMSs, blogs, CRMs and e-commerce web applications. Other databases could be vulnerable depending on how the applications implement search functionalities although common implementation of the search functionality in SQL Server back-end applications is vulnerable.

The information contained in this document represents the current view of TrustStix Corporation on the issues discussed as of the date of publication. Because TrustStix must respond to changing market conditions, it should not be interpreted to be a commitment on the part of TrustStix, and TrustStix cannot guarantee the accuracy of any information presented after the date of publication.

XMPP（可扩展消息处理现场协议）是基于可扩展标记语言（XML）的协议，它用于即时消息（IM）以及在线现场探测。它在促进服务器之间的准即时操作。这个协议可能最终允许因特网用户向因特网上的其他任何人发送即时消息，即使其操作系统和浏览器不同。

早在1998年,Martin Roesch先生开发了开放源代码(Open Source)的入侵检测系统Snort.直至今天,Snort已发展成为一个多平台(Multi-Platform),实时(Real-Time)流量分析,网络IP数据包(Pocket)记录等特性的强大的入侵检测/防御系统(Network Intrusion Detection/Prevention System),即NIDS/NIPS.Snort基于GNU通用公共许可证(GPL)发布,您可以通过免费下载获得Snort,并且只需要几分钟就可以安装并开始使用它. 　　Snort有三种工作模式：嗅探器、数据包记录器、网络入侵检测系统。嗅探器模式仅仅是从网络上读取数据包并作为连续不断的流显示在终端上。数据包记录器模式把数据包记录到硬盘上。网路入侵检测模式是最复杂的，而且是可配置的。我们可以让snort分析网络数据流以匹配用户定义的一些规则，并根据检测结果采取一定的动作。

VB.NET学习教程(PDF).rar

华为编程开发规范与案例,大家自己看吧