keepalived application deployment

First, keep alived overview;2. Design principle;3. Case: Keepalived realizes dual hot standby; First, keep alived outline: Summary: keepalived is a powerful assistant tool designed for Lvs at first, which guarantees the failover of Lvs load dispatcher and the health checking of web nodes. It has been applied to many scenarios requiring fault ...

Posted on Tue, 20 Aug 2019 06:16:53 -0700 by bedted

Learn about key exchange algorithm ECDH

Links to the original text: https://www.jianshu.com/p/b26cd2bfdc28 Move on to other people's explanations: Let's take Alice and Bob as examples to describe the principle of Diffie-Hellman key exchange. 1. All participants involved in t ...

Posted on Fri, 16 Aug 2019 04:16:16 -0700 by madkris

baresip android usage test tutorial 1

1. Compiler found on git. https://github.com/juha-h/libbaresip-android This test is good. Download the ndk of sdk and r19 and refer to the execution and pay attention to modifying the ndk path and output directory Makedownload-sources If it fails to execute successfully, download the package and ren ...

Posted on Tue, 13 Aug 2019 02:36:30 -0700 by bimo

Enterprise Operations and Maintenance-lvs+keepalived for High Availability (HA)

Articles Catalogue Concept and principle of keeping alived lvs+keepalived for high availability Preparation of experimental environment Main and standby server 1 (DS) Backup Server 4 (Standby DS) Real Server(server2,server3) Physical Machine Testing Concept and principle of keeping alived Se ...

Posted on Tue, 30 Jul 2019 02:39:15 -0700 by vumpler

linux installs nginx with configuration of http and socket proxy mode

#If you have the first four packages, you don't need to install them. yum install unzip yum install libtool yum -y install pcre-devel yum -y install openssl openssl-devel #Download nginx package wget http://nginx.org/download/nginx-1.13.9.tar.gz #decompression tar xvfz nginx-1.13.9.tar.gz #Enter the unz ...

Posted on Fri, 19 Jul 2019 02:46:23 -0700 by asanvicente

How to build yum warehouse and customize rpm package

Original works, reproduced please indicate the source. http://www.cnblogs.com/Csir/ My tutor - Long Wing When we deploy cluster automatically, we need to build yum warehouse and customize rpm packages in order to install all services quickly.   # Server1.# Retain the usual downloaded rpm packages first sed -i 's#keepcache=0#keepcache=1#g' /etc/ ...

Posted on Wed, 10 Jul 2019 12:01:00 -0700 by thom2002

Fastdfs(1) Installed Tracker

1. Introduction to Fastdfs FastDFS is an open source distributed file system. It manages files, including file storage, file synchronization, file access (file upload, file download), etc. It solves the problems of mass storage and load balancing.It is especially suitable for online services with files as carriers, such as photo album websites ...

Posted on Thu, 20 Jun 2019 12:06:17 -0700 by arsitek

Https Configuration under Various Web Servers

Preface Front-end needs to start the web server in many cases. In order to ensure the security of the data, encrypted transmission of the data is required by Https. Some web-view s only allow HTTPS to be accessed, so learning how to configure HTTPS is also an essential part of the big front-end.This sister will start with a brief introduction t ...

Posted on Tue, 04 Jun 2019 09:36:05 -0700 by Shawazi

centos 7.4 deploys couchbase cluster

Courchbase is a relatively new and rapidly developing nosql database technology. In 2014, viber announced the use of couchbase to replace mongodb in order to meet the needs of 1 billion users. Currently, couchbase has been widely used in the production environment. The main domestic companies used are Sina, Tencent and so on. Due to the lack o ...

Posted on Thu, 16 May 2019 17:36:59 -0700 by phpfolk2003

docker configuration TLS (simplification)

I. Official Information Official website informationhttps://docs.docker.com/engine/reference/commandline/dockerd/ Create certificate step Official website Protect the Docker daemon socket https://docs.docker.com/engine/security/https/ II. Creating Certificates Generated certificates ca-key.pem ca.pem cert.pem key.pem ...

Posted on Wed, 15 May 2019 05:38:33 -0700 by scifo