NGINX高可用之keepalived+nginx主从模式+主主模式配置实践
七层负载均衡七层就是基于URL等应用层信息的负载均衡。从第七层"应用层"开始,根据虚拟的url或IP,主机名接收请求,再转向相应的处理服务器。七层负载均衡器也称作七层交换机,即L7 switch(七层交换),OSI的最高层,应用层。此时,该Load Balancer能理解应用协议。如:HAProxy、Nginx等。四层负载均衡四层就是基于IP+端口的负载均衡,是在三次负载均衡的基础上,即从第四层....

【运维知识进阶篇】集群架构-Nginx高可用Keepalived(二)
将节点1的keepalived停掉[root@LB01 ~]# systemctl stop keepalived节点2接管VIP1. [root@LB02 ~]# ip add | grep 10.0.0.3 2. inet 10.0.0.3/32 scope global eth0 再次查看mac地址,此时物理地址与LB02上10.0.0.3MAC地址一致Keepalived故障脑裂...

【运维知识进阶篇】集群架构-Nginx高可用Keepalived
高可用是指2台机器启动着完全相同的业务系统,一台机器宕机后,另一台可以快速启用,用户是无感知的。高可用硬件通常使用F5,软件通常使用keepalived。keepalived软件是基于VRRP协议实现的,VRRP虚拟路由冗余协议,主要用于解决单点故障。VRRP实现原理咱们拿公司路由器举例,路由器故障后,网关无法转发报文,所有人无法上网了怎么办?一般我们会选择增加一台路由器,但是我们主路由器故障后....

nginx高可用选型-keepalived
一、keepalived介绍1.keepalived是什么Keepalived 是一个用 C 语言编写的路由软件。该项目的主要目标是为 Linux 系统和基于 Linux 的基础架构提供简单而强大的负载平衡和高可用性设施。负载平衡框架依赖于众所周知且广泛使用的LVS (IPVS) 内核模块,提供第 4 层负载平衡。Keepalived 实现了一组检查器,以根据其健康状况动态和自适应地维护和管理负....

nginx的高可用:keepalived+nginx实现主备(了
什么是keepalivedkeepalived是集群管理中保证集群高可用的一个服务软件,用来防止单点故障。Keepalived的作用是检测web服务器的状态,如果有一台web服务器死机,或工作出现故障,Keepalived将检测到,并将有故障的web服务器从系统中剔除,当web服务器工作正常后Keepalived自动将web服务器加入到服务器群中,这些工作全部自动完成,不需要人工干涉,需要人工做....

Nginx实战教程:生产环境之Nginx高可用方案(keepalived+双机热备)
准备工作: 192.168.16.128 192.168.16.129 两台虚拟机,服务器也行。安装好Nginx 安装Nginx 更新yum源文件: Copyrpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm wget -O /etc/yum.rep....
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