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Django's SuspiciousOperation Invalid HTTP_HOST header
... a more likely explanation is web crawlers (robots) simply crawling public IP addresses on port 80 - in which case you would want to allow them.
– markmnl
May 16 '14 at 4:12
16
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比尔盖茨“未来生活预言”的科技豪宅（图） - 资讯 - 清泛网 - 专注C/C++及内核技术
...
-墙上的相框其实是触摸屏 -
整个房屋的墙上都布满了显示屏，总共花费8万美元。你可以直接在屏幕上操作显示喜欢的画作或者照片，为了存储这些照片，存储设备花费了15万美元。
-游泳池也能听音乐 -
大楼里有一个6...
Test if string is a number in Ruby on Rails
...il 1154461.1 (±5.5%) i/s - 5788976 in 5.035311s
require 'benchmark/ips'
int = '220000'
bad_int = '22.to.2'
Benchmark.ips do |x|
x.report('cast') do
Integer(int) rescue false
end
x.report('cast fail') do
Integer(bad_int) rescue false
end
x.report('to_s') do
int.to_i....
携程遭超长宕机：内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术
...酒店数据库遭到了物理删除。另有疑似携程员工聊天记录显示，目前携程发布系统仍然无法使用，数据仍然被持续删除中。但纽约时报专栏作家李成东在微博上表示，携程正在重建缓存，估计3小时内回复，原因据说是内部离职...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...
mongo> db.currentOp()
与此同时，运行mongostat的话，结果会显示很高的locked值。
…
我在网络上找到一篇：MongoDB Pre-Splitting for Faster Data Loading and Importing，看上去和我的问题很类似，不过他的问题实质是由于自动分片导致数据迁移...
pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...行，文字除外 (default: 1)
--process-outline <int> 在html中显示链接 (default: 1)
--printing <int> 支持打印 (default: 1)
--fallback <int> 在备用模式下输出 (default: 0)
--embed-external-font <int> 嵌入局部匹配的外部字体 (d...
Why must a lambda expression be cast when supplied as a plain Delegate parameter
...keRequired code pattern are very helpful.
– Erik Philips
Jan 9 '13 at 1:12
...
write a shell script to ssh to a remote machine and execute commands
...
There are multiple remote linux machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ...
Connect Java to a MySQL database
... default 3306.
Download the JDBC driver and put in classpath, extract the ZIP file and put the containing JAR file in the classpath. The vendor-specific JDBC driver is a concrete implementation of the JDBC API (tutorial here).
If you're using an IDE like Eclipse or Netbeans, then you can add it to...
App Inventor 2 中文网原创内容 · App Inventor 2 中文网
...nventor 2在不同的屏幕之间传值
【技巧】组件过多，屏幕显示不下，没有滚动条？
【技巧】组件过多，水平/垂直布局显示不下，需要一个滚动条？
【技巧】App Inventor 2 如何去掉顶部标题栏实现全屏？
【技巧】App Inventor 2 ...