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SQL Injection 101: Database & SQL Basics Every Hacker Needs to Know

The key to becoming a competent white hat is knowing how the technology that you are trying to exploit actually works. SQL injection is one of the …

How To Create a Multi-Node MySQL Cluster on Ubuntu 16.04

IntroductionMySQL cluster is a software technology which provides high availability and throughput. If you are already familiar with other cluster …

Databases

Private Browsing Without a VPN

Network environments are growing increasingly hostile. Freedoms of speech, religion, and press are being diminished. The right to privacy is …

BBR, the new kid on the TCP block

A look at Google's delay-controlled TCP flow control algorithm, called BBR.

Software Development

A Linux user's guide to Logical Volume Management

Managing disk space has always been a significant task for sysadmins. Running out of disk space used to be the start of a long and complex series of …

唐史主任司马迁: 《韭菜乐园》之十六——换手率简析 由于时间有限,只简单码一下结论,回头再补案例。一、换手率结合振幅、涨幅、交易量是评估个股交易风险的重要参照指标。(此处回...

由于时间有限,只简单码一下结论,回头再补案例。<p>一、换手率结合振幅、涨幅、交易量是评估个股交易风险的重要参照指标。<br>(此处回头补一个表)<br>二、换手率计算和评估时,需要以实际流通盘来计算。<br>例如不可能交易的控股股东(尤其是国资控股股东和有野蛮人的个股)<br>三、换手率使用周线分析更为准确。<br>对敲拉升和利好出货会在周线 …

关于电子血压计的使用_购物攻略_什么值得买

随着生活水平的提高,大家对健康保健越来越看重。各种保健品,保健书籍的热销即可作证明。而对于高血压的危害,大家目前也是越来越重视,各种心脑血管疾病其都是高危因素,脑卒中、心肌梗死、心力衰竭及慢性肾脏病是其主要并发症。对于普罗大众来说,使用水银血压计作为日常的测量,比较不现实。而电子血压计,作为一个比较 …