Programmer Group

Series articles: Knowledge Context Preface   Java's IO, or Input/Output, is divided into IO devices and IO interfaces. I often hear input and output streams, input and output bytes, input and output characters... Java interaction with the outside can be converted into streams, byte characters and then encapsulated as objects, th ...

1, Overview of network programming Network: Address (including IP address and port number)Data exchange (involving protocols such as http, tcp and UDP, in other words, data format)MCU will use port number protocol (uart) Introduction to network programming all talk about sockets (sockets are divided into two types: tcp and UDP): TCP: connec ...

1 installation sudo apt-get install libpcap-dev 2 use Header files to include: #include <pcap.h When compiling, you need to add: -lpcap The basic steps of developing applications using libpcap function library: Open network deviceSet filtering rules (optional)Capture dataTurn off the network device Common functions: pcap_lookupdev( ...

Partition of dynamic routing protocols 1. Algorithm 1) , distance vector type - RIP, EIGRP (Cisco, fastest convergence), BGP (path information) 2) , link state - OSPF, ISIS 3) Path vector BGP 2. Scope AS 1) , IGP (internal Gateway Protocol) 2) EGP (border gateway protocol) BGP partition AS 1~65535 64512~65535 private AS 2^16AS number ...

2021SC@SDUSC 1, Web part source code analysis 1. Brief description The most users contact the OSSIM platform is the Web UI. They can easily obtain various security analysis charts through the web. As ordinary operation and maintenance personnel or monitoring personnel, most operations are completed through the Web UI. The Web UI interface ...

introduce The author is a senior student who is new to safety. If there are mistakes in the article, please point out! At first, it was considered to use pure matching, but this method is too strict, and the code written by programmers has various possible combinations Therefore, I tried to realize java lexical analysis and syntax analysis ...

Catalog I. DNS 1.1 Introduction to DNS Services DNS (Domain Name System), a distributed database on the Internet that maps domain names and IP addresses to each other, enables users to access the Internet more easily without having to remember the IP strings that can be read directly by the machine. The process of getting the IP address co ...

Experimental principle The reason why PPP protocol has become a more extensive protocol in Wan is that it provides CHAP,PAP and other verification protocols to better ensure the security of the network PAP is two handshake authentication. The user name and secret are repeatedly sent to the authenticator on the link until the authentication pas ...

Cisco SD-WAN Cisco SD-WAN four plane, four component Management plane -- vManage; Provides a highly visual dashboard that simplifies network operations. It provides centralized configuration, management, operation and monitoring throughout the SD-WAN architecture Layout plane -- vBond; The coordinator is mainly responsible for coordinating ...

This code is 136 lines, written in css3 and javascript. Now the albums on the network are mostly tiled. If there are many photos, they look very tired. Of course, this is my personal point of view, so this time I made a 3D album dragging effect, which looks beautiful and not tired to watch. Knowledge points: CSS33D effect, CSS3 excessi ...