Programmer Group

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 ...

1. Background Description Deployed services require domain name access. Configuration in the host file is OK, but if more than one computer accesses, you need to modify all the host files manually. If you add a domain name one day, you need to modify all the host files manually. 2. Set up dns services The best way to solve the above probl ...

EMQ X Team provides Helm chart for users to deploy EMQ X on kubernetes cluster with one click MQTT server This is the most recommended method of deploying EMQ X MQTT server on kubernetes or k3s cluster by EMQ X Team. This paper will use the method of handwritten yaml file to deploy a K8S cluster of EMQ X MQTT server from scratch, and analyze t ...

)] What is DNS? Domain Name System is the phone book of the whole Internet. It can translate the domain name that can be understood into the IP address that can be understood by the machine, so that Internet users no longer need to directly contact the IP address that is difficult to read and understand. The domain name system is very imp ...

Select reference Because I am learning to write at the same time, rather than starting to write in a very organized way after I have learned it completely, so reference materials are very important (originally personal development experience is very important, but I am zero Foundation) Official Py ...

octavia failed to run preface If not specifically noted, all command lines are executed using the admin account. Problem description Create a loadbalance by calling octavia's api as follows @token = gAAAAABe6y8up_ZdUS43Lfe8AFERncGtZFK6IHrnd-MSgbE5U-xKg-6N04eUV3tNwlKEAiZVNIl6I0NVvjMT97CygiJL-7XFciQH ...

Article catalog 1. Introduction 2. No status 3.dhcpv6 3.1 Cisco 3.2 Huawei 1. Introduction At present, IPv6 address allocation methods are as follows: 1. Manual configuration. Manually configure IPv6 address / prefix and other network configuration parameters (DNS, NIS, SNTP server address, et ...

0x00 experimental environment Name Edition Explain Host OS Window 7 simulator GNS3 v2.2.8 GNS3 vm v2.2.8 virtual machine VMware 15 Router Mirror c7200 adventerprisek9 0x01 Network Topology 0x02 problem description Host PC1 ping does not pass through f1 port of router R1 S ...

Recently, more than 10 secondary domain names of individuals need to issue certificates. Let's Encrypt provides free SSL certificates with a term of three months. When they expire, they need renew. The official also provides certbot, a tool for automatic renew. Here, we record the general certificate that uses Let's Encrypt to generate t ...

1: Experimental environment1.1: Huawei ensp software1.2: PC, router and switchPC in initialization state and router and switch in initialization state2: Experimental process2.1: equipment configurationIn the ensp, the PC, router and switch are made into a topological diagram according to the diagram.2.2 configure SW1 switch [SW1]vlan batch 1 ...