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 ...
Posted by chacha102 on Mon, 29 Jun 2020 22:46:35 -0700
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 ...
Posted by gskaruz on Mon, 22 Jun 2020 23:16:42 -0700
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 ...
Posted by zero816 on Fri, 19 Jun 2020 03:15:13 -0700
octavia failed to run
If not specifically noted, all command lines are executed using the admin account.
Create a loadbalance by calling octavia's api as follows
@token = gAAAAABe6y8up_ZdUS43Lfe8AFERncGtZFK6IHrnd-MSgbE5U-xKg-6N04eUV3tNwlKEAiZVNIl6I0NVvjMT97CygiJL-7XFciQH ...
Posted by byronwells on Fri, 19 Jun 2020 00:58:04 -0700
2. No status
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 ...
Posted by gavinr98 on Mon, 15 Jun 2020 21:09:04 -0700
0x00 experimental environment
0x01 Network Topology
0x02 problem description
Host PC1 ping does not pass through f1 port of router R1
Posted by eternalprophet on Thu, 11 Jun 2020 18:49:34 -0700
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 ...
Posted by iRock on Fri, 29 May 2020 00:36:59 -0700
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 ...
Posted by themaxx113 on Thu, 28 May 2020 07:12:02 -0700
1, Understanding statefuse
1. Statefuse ensures that pod s retain their identity (container name) and state after rescheduling.2. Statefuse achieves that each pod corresponds to the corresponding PV volume, and each pod can support a set of independent data volumes.3. Provide a stable network identity. Each pod created by a Statefulset has a z ...
Posted by kh411dz on Thu, 21 May 2020 08:38:01 -0700
mysql connection is slow. Log in to the server to view mysql logs:IP address 'XX.XX.XX.XX' has been resolved to the host name 'XX.XX.XX.XX.ro.ovo.sc', which resembles IPv4-address itself.The reason is that mysql performs DNS reverse resolution on the connected client.There are two solutions:1. Write the ip address of the client in the / etc/ ...
Posted by lohmk on Wed, 06 May 2020 22:54:02 -0700