The simplest configuration of virtualserverNAT in linux

Previously, I wanted to directly install lvs + keepalived in the 2 + 2 mode, along with the VIP. The result was a decisive tragedy. I made a mess with iptables and keepalived configurations. Today, let's calm down and get a new 1 + 1 model. Environment description: 1 director: eth0: 10.1.1.11/24eth1: 10 .... previously, I wanted to directly install lvs + keepalived in the 2 + 2 mode, along with the VIP. The result was a decisive tragedy. I made a mess with iptables and keepalived configurations. Today, let's calm down and get a new 1 + 1 model. Environment description: one ctor: eth0: 10.1.1.11/24 eth1: 10.20.40.2/24 1 real server: eth0: 10.20.40.10/24 gateway is set to 10.20.40.2. note, there is no virtual IP here to modify the kernel parameters of ctor, java code echo "1">/proc/sys/net/ipv4/ip_forward echo "0">/proc/sys/net/ipv4/ipv4/conf/ all/send_redirects # according to my experiment, in fact, it is possible to echo "0">/proc/sys/net/ipv4/conf/default/send_redirects to add a virtual service using rr scheduler Java code/sbin/ipvsadm. -A-t 10.1.1.11: 80-s rr 10.1.1.101 the address is not actually provided to the customer to add a real host for the virtual service. use NAT-m masquerading weight-w 1 Java code/sbin/ipvsadm-a-t 10.1.1.11: 80-r 10.20.40.10: 80-m-w 1 Create A/var/www/index.html file on the real service host and director at the same time, and write special information. Access 10.1.1.11: 80 from the client to see if the home page 10.20.40.10 appears, instead of the home page 10.1.1.11. Author: luozhaoyu