来自别把商业模式当成葵花宝典(by 申音) – 思维的乐趣BLOG 不过。我总觉得，创业者对于商业模式的狂热追捧越来越走向了一个误区。此话怎讲？因为模式说到底，实际上是一种复杂商业逻辑的简化。而现在，很多创业者本末倒置了，急着要用一种简单逻辑驾驭复杂世界。换句话说，就是指望弄到一本葵花宝典，然后统治武林。 我是相信，先有商业实践后有成熟模式。这是一个不断试错和做减法的过程，一个从概念模糊到理念清晰的过程，一个面对复杂的商业环境和竞争性的市场，掌握一种你最顺手的方式来获取最大化利润的过程。 这一段打比方比较有趣，特别是关于联想和HP: 脱离了其产生背景学商业模式，只会像欧阳峰一样走火入魔，经脉逆行。好比葵花宝典，本来就是天阉所创，不是人人都可以学的，欲练此功，必先自宫，即使自宫，未必成功。 联想也好，HP也罢，学不了戴尔，都是因为下不了手自宫。眼下“轻公司”时髦，难道就个个把工厂关了，只搞微笑曲线的两尾巴。

The package manager, yum, on Fedora uses a mirror management infrastructure to help locate the geographically closest mirrors. This “geographically closest” mirror is supposed to give you the fastest connection – which unfortunately is usually not the case. For example, the connection between Mainland China and Taiwan is extremely slow despite it’s geographical neighborhood. Therefore, [...]

What is checksum offloading From http://www.wireshark.org/docs/wsug_html_chunked/ChAdvChecksums.html The checksum calculation might be done by the network driver, protocol driver or even in hardware. For example: The Ethernet transmitting hardware calculates the Ethernet CRC32 checksum and the receiving hardware validates this checksum. If the received checksum is wrong Wireshark won’t even see the packet, as the Ethernet [...]