Programming VIP

Role of DNS Service The function of converting domain names to IP addresses DNS concept DNS is a distributed database. The naming system adopts a hierarchical logical structure, just like an inverted tree. This logical tree structure is called domain name space. Since DNS divides the domain name space, organizations can use their own domain ...

Kali Linux only does penetration testing in the LAN, which is a little overqualified. Perhaps the long-distance penetration of aircraft with the wind can better reflect its original intention (strong concealment, maybe no trace!). To realize this idea, we need to solve a core problem: how to capture the network traffic of remote LAN? This probl ...

The flow aging entry function FlowManager checks the aging process. If it enters the emergency mode, it directly calls the function FlowTimeoutHash for aging processing. If it is in the normal mode, it calls the function FlowTimeoutHashInChunks for aging processing. 1. FlowTimeoutHashInChunks function FlowManager->FlowTimeoutHashInChunks ...

1. Black hat A person who hacks for illegal purposes, usually for economic gain. They enter the secure network to destroy, redeem, modify or steal data, or make the network unavailable to authorized users. The name comes from the fact that villains in old-fashioned black-and-white western films are easy to be recognized by film viewers because ...

[preface]: Front end refers to web development "Web page" only refers to the page you see (the interface also includes some interaction logic with users and servers) The technologies used in front-end development mainly include three core aspects: 1.HTML: describes the basic structure of a web page 2.CSS: describes the style of web pa ...

This article continues to explain the establishment of flow in the previous article. The most important function FlowGetNew is to obtain a flow. The acquisition process is also very tortuous. Please tell your grandparents to get a flow. 1. The function flowgetnew can also be understood in several aspects: FlowHandlePacket->FlowGetFlowFromH ...

Dynamic routing protocol: The difference between dynamic routing and static routing is that dynamic routing is a routing protocol that converges based on topology changes. This makes dynamic routing more suitable for complex large-scale networks (static routing protocols need to be manually configured and have a large amount of work). Of cours ...

Cisco packet tracker experiment Use of CPT software Connect two PC s to build LAN Connect two PC s directly to form a network. Note: cross wires are required for direct connection. For the basic network configuration of two PC s, you only need to configure the IP address, and then ping each other successfully. Building LAN ...

Experiment introduction and preparation There are 15 experiments in this part, which need to be completed by Cisco packet tracker software. Please first understand the concepts of VLSM, CIDR, RIP, OSPF, VLAN, STP, NAT and DHCP to enable network planning and configuration. preface This is my third experiment, the Cisco packet track ...

Experimental environment: server: 192.168.91.155, 192.168.91.158 client: 192.168.91.152 Objective: to synchronize the files in the specified directory () of clinet to the specified directory () on the server side Host operating system environment: centos 1.10 (rsync is installed by default) 1. Train of thought rsync + inotify tools calls rsyn ...