547 posts
After the computer gets the domain name the user typed in, it queries a server — the DNS server set in our computer. DNS stands for Domain Name System, and every ISP provides a DNS server for users to resolve domain names. This article doesn't cover DNS principles, only the resolution process, so let's go straight to it.
Since you're reading this, you're probably already familiar with Nginx, so I won't repeat its installation and configuration. We'll go straight to integrating Nginx with Naxsi. If Nginx is still new to you — you don't know where the config file is or how to compile — this article isn't for you yet; please get comfortable with Nginx installation, configuration, and compilation first.
This article reprints the NiFi terminology list with Chinese explanations.
Apache NiFi has so many Processors that it's hard to know which to use, so I machine-translated them and listed all Apache NiFi Processors to help find which one to use. The document targets Apache NiFi Processors 1.9.0.
I personally believe this world is imperfect. Everything has yin and yang and never reaches perfect balance, so it chases the part it lacks — which is also what drives the whole system. Cold and heat form wind because air pressure seeks balance; male and female seek each other because each lacks what the other has. If a person were perfect, then you beside him would be superfluous — when you appear, he becomes imperfect and unbalanced. In contrast, human desire drives people onward. So what is perfection?
Lambda expressions are the most important new feature driving the Java 8 release. They let you pass a function as a parameter to a method (a function passed into a method). So you must upgrade to JDK 8 or above to use Lambda expressions; if you're on JDK 7, you're out of luck.
I ran into this problem while deploying a project at a client's environment. The project's MySQL connection string was localhost, but it errored out saying the database couldn't be connected, and the connection string had been replaced with 127.0.0.1. At first I thought it was a network connectivity issue, so I ran mysql -u root -p and found I could connect fine; ping localhost also resolved to 127.0.0.1. I suspected a mismatched MySQL JDBC driver and swapped countless driver jars, but I was sure it wasn't my program, so I started Googling and found many people with the same situation. I'm summarizing it here for reference. The type of problem I hit was a permissions issue.
Lombok is a third-party Java library. In projects we often define lots of JavaBeans as entity classes, then use IDE shortcuts to generate getter/setter/toString/equals methods — the code looks huge, and worse, renaming requires batch replacement that can go wrong. Lombok can generate that complex yet low-level code at compile time.
Today, for those with no security background, I'll roughly explain how these three types of attacks form. Once you know the principles, you can defend. Since everyone uses different languages and frameworks, this intro focuses on how the attacks form and how to defend — so there's little concrete code; you'll implement it per your own situation.
After learning Git, many of you are eager to act — you have opinions on open source projects, or you've found bugs and optimizations. But how do you contribute your code to an open source project? Today I'll show you how to share your code elegantly.
