what is packet sniffing

This article reprinted address: http://cenalulu.github.io/python/gil-in-python/What's Gil?The first thing to be clear is GIL not the Python feature, which is a concept introduced when implementing the Python parser (CPython). Just like C + + is a set of language (syntax) standards, but can be compiled into executable code with different compilers. Well-known comp

buildings. Therefore, setting up a wireless LAN becomes the best solution ｡ What is the need for a wireless local area network? A wireless local area network is not used to replace a wired local area network, but to make up for the shortcomings of a wired Local Area Network to extend the network. The following situations may require a Wireless Local Area Network

At present, can reach the wall function of more than VPN, such as the more popular in recent years, the SS, but a lot of friends completely confused SS, SSH and SSL What is the difference between these connections or the protocol and VPN in the end which good? Here are some simple descriptions. VPN here is not much to do introduction,

subtitle file together, in the MKV package inside the subtitle and video is separate, independent, like RAR package inside 2 files. You can also choose whether to open subtitles when playing. It's doable when you want to unload the subtitles or rewind the video without subtitles. MKV is a reversible package. inline, subtitles and video fit, is equal to the orig

Recently, many people are asking what the vswitch, hub, and router are, what are their functions, and what are their differences. I will give some simple answers to these questions. First, the hub, that is, the hub. Its function can be simply understood as connecting some machines to form a LAN. The switch (also known

IP address Structure To understand what a subnet mask is, you must understand the composition of IP addresses. The Internet is composed of many small networks, each of which has many hosts, thus forming a hierarchical structure. When designing an IP address, considering the hierarchical features of Address Allocation, each IP address

DNS (Domain Name System) is a distributed database that maps domain names and IP addresses on the Internet, allowing users to access the Internet more conveniently, instead of remembering the number of IP address strings that can be directly read by machines. The process of obtaining the IP address corresponding to the host name through the host name is called domain name resolution (or host name resolution

What is the difference between initial catalog and database?Initial Catalog:DataBase:There is no difference between the two, but the names are different, just like the real names of humans and old names .. Can call you. **************************************** **** Integrated Security = SSPI indicates that the current WINDOWS system user logs on to the SQL server

What is a compressed file? Concept: Compressed software compression files are called compressed files. The use of more compression software is winrar, how to compress the file? Please read the following description: 1: First of all to install a good compression software, such as WinRAR compression software. Select the file to compress, right-click the file in

This article brings you to the content is about JS in the definition of closure is what? JS closure of the application scenario, there is a certain reference value, there is a need for friends to refer to, I hope you have some help. Wha