Programming VIP

Understanding how the DHCP protocol works DHCP (Dynamic Host Configuration Protocol) provides the ability to dynamically configure IP addresses.In a DHCP network, clients no longer need to enter network parameters themselves, but are automatically assigned to clients by the DHCP server. IP Address Rental Process IP Lease Request IP Rental Pro ...

Introduction to DNS DNS (Domain Name System) Domain Name System: It is a system that uses client/server mechanism to translate computer name to IP address.As an important network service, DNS is not only the basis of the work of the international Internet, but also widely used in the internal network of enterprises. Role of DNS Server Forward R ...

Before ab stress test, explain the following concepts: Requests per second The quantitative description of the concurrent processing capability of the server, in reqs/s, refers to the number of requests processed in unit time under the number of concurrent users. The maximum number of requests that can be processed per unit time under the numb ...

The company uses K8S to build a test environment, and there are multiple sets of test exchanges. The current idea is to use an export IP for each set of test environment.The plan:1. Build ingress2. Build a reverse agent Combined with the actual situation, we use to build a reverse agent to solve this problem. The following K8S services exist i ...

AWStats log analysis system An open source log analysis system developed by Perl It can be used to analyze the access logs of Apache, Samba, Vsftpd, IIS and other servers. Information combined with crond and other scheduled task services can regularly analyze the log content Environmental Science One Linux service host (192.168.13.132) A win ...

http module The HTTP module is located in / lib/http.js. Let's take a look at the core method of the module, createServer. function createServer(opts, requestListener) { return new Server(opts, requestListener); } The function of createServer is to create a Server class, which is located in / lib/_http_server.js function Server(options, reque ...

I. Preparations Synchronize the swagger API to easyMock and then modify the contents of / gathering/gathering (GET method) { "code": 20000, "flag": true, "message": "@string", "data|10": [{ "id": "@string", "name": "@cword(8,12)", "summary": "@cword(20,40)", "detail": "@cword(20,40)", "s ...

The experimental environment: A GNS3 A Linux System for Centos7 A server 2016 server Two PC s The purpose of the experiment is: Build a DHCP service to automatically assign IP addresses to two PC s Setting up a DNS Resolution Server to Resolve Domain Names Build a web server to provide two websites Realize the interconnection of the whole en ...

Earlier we talked about Eureka and Spring Cloud Config, and today we introduced an all-round player, Consul.It is a tool introduced by HashiCorp to provide service discovery and service configuration.It is developed in go language and has good portability.Included by Spring Cloud, Eureka stopped the development of new versions and wanted devel ...

brief introduction Just take notes to prevent forgetting. What we want to achieve today is the access method above the article pictures. k8s installation ingress nginx First deploy the following yaml file kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml Most of the tutorials are do ...