Use postfix and dovecot to deploy your mail system--Learn Notes

The experimental environment is redhat 7.0 systemAs shown in the figure aboveClient uses outlook to send and receive mailThe server sends outgoing mail using postfix, receives mail using dovecot, and forwards the changed user 1. Install dns domain name resolution service 1.1 Configure the server host name, which is consistent with the sending ...

Posted on Sat, 15 Feb 2020 08:27:43 -0800 by murpe

K8S learning 003 -- using kubeadm to deploy the installation cluster

Article directory Preface 1: Environmental preparation 2: Cluster deployment process 2.1: set system initialization 2.1.1: three nodes initialize the system, showing only the operation of the master node 2.2:kubeadm deployment and installation 2.2.1: docker installation, both master and slave 2.2 ...

Posted on Fri, 14 Feb 2020 05:10:35 -0800 by stewart

Docker builds Kong -- configures Service and adds key auth

Kong is an API gateway that forwards API communication between the client and the (micro) service.Conceptual terminologyUpstream: it is an abstraction of the upstream server;target: represents a physical service, which is the abstraction of ip + port;Service: it is an abstract level service. It can be directly mapped to a physical service (ho ...

Posted on Fri, 14 Feb 2020 04:42:41 -0800 by lovesmith

ELK introduction and installation

I. Introduction ELK is the abbreviation of three open source software, which respectively means: elastic search, logstash, kibana 1. Elasticsearch is an open source distributed search engine, which provides three functions of data collection, analysis and storage. Its features include: distributed, zero ...

Posted on Wed, 12 Feb 2020 04:27:27 -0800 by php4hosting

Detailed explanation and implementation of LVS + preserved to realize high available load balancing cluster

Cluster technology overview: LB (load balancing cluster): LVS, Haproxy, Nginx, F5 BigIP HA (high availability cluster): maintained, RFCS, Pacemaker, Heartbeat HP (high performance cluster): Hadoop,sparkKeepalived: Keepalived is the next lightweight and highly available solution for linux. Similar to the ...

Posted on Wed, 12 Feb 2020 03:48:01 -0800 by Schism

Compile and install Redis and manage using systemd

Environmental Science OS redis version Firewall and selinux CentOS7 4.0.14 Close Installation steps Pre-installation Equipment 1.because redis Yes C Written, so installation is required gcc #yum -y install gcc 2.download redis Source Package #wget -P /usr/local/src/ http://download.redis.io/releases/redis-4.0.14.tar.gz Compile Installati ...

Posted on Tue, 11 Feb 2020 10:28:50 -0800 by tommyboy123x

k8s Deployment - Multi-node Deployment and Load Balancing Setup

Introduction to multi-node deployment In the production environment, we also consider the high availability of the platform when building the kubernetes platform. The kubenetes platform is managed by the master center and each node server is deployed and managed by the master server. In the previous articles, we built a single node (a master ...

Posted on Tue, 11 Feb 2020 10:02:12 -0800 by chu70077

linux Basic Starter Software Installation rpm, yum and source installation details

8. Software RPM Package Installation 8.1 rpm Installation rpm [Options] Package Name Main Options -i Installation -e Uninstall -U Upgrade -q lookup Auxiliary Options -_Display process -h --hash query -a-all Query all installed packages -f-file query for packages with <-file -p Query for a package that is not installed uninstall -nodeps Ignor ...

Posted on Mon, 10 Feb 2020 09:54:09 -0800 by aaronhall

kubernetes binary deployment load balancing deployment

This is the third part of kubernetes binary deploymentIf you haven't read the first article, you can look at the following:Kubernetes binary deployment (I) single node deploymentkubernetes binary deployment (II) multi node deployment Experimental environment: load balancing Nginx1:192.168.35.104/24 Nginx2:192.168.35.105/24 Master node maste ...

Posted on Mon, 10 Feb 2020 03:15:09 -0800 by marq

centos7 yum install mysql5.7

By default, MariaDB is installed in CentOS, which is a branch of MySQL. However, in order to meet the needs, MySQL should be installed in the system, and MariaDB can be directly overwritten after the installation. 1 download and install MySQL's official Yum Repository [root@centos7 ~]# wget https:/ ...

Posted on Wed, 05 Feb 2020 04:45:41 -0800 by emopoops