没有局域网环境,全是公网IP可以做LVS吗,该如何做了!请大家赐教! 由 wjjava 在 周四, 2012-01-12 22:39 提交 LVS集群 现在有3台服务器,各有一个公网IP地址。IP地址形式如下: IP1:122.224.224.001 IP2:122.224.224.002 IP3:122.224.224.003 我想用IP1做主LVS(不做备LVS), IP2和IP3两台服务器为两个tomcat WEB服务节点。配置上有什么特殊的吗? 我按以下的方法做没有成功: 1、在IP1上安装: keepalived-1.1.15-7.1 ipvsadm-1.24-123.2 linux-554e:/usr # rpm -ivh keepalived-1.1.15-7.1.i586.rpm Preparing... ########################################### [100%] 1:keepalived ########################################### [100%] keepalived 0:off 1:off 2:off 3:on 4:off 5:on 6:off linux-554e:/usr # rpm -ivh ipvsadm-1.24-123.2.i586.rpm Preparing... ########################################### [100%] 1:ipvsadm ########################################### [100%] Updating etc/sysconfig/ipvsadm... 2 配置文件:/etc/keepalived/keepalived.conf global_defs { notification_email { acassen@firewall.loc failover@firewall.loc sysadmin@firewall.loc } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS_DEVEL } vrrp_instance VI_1 { state MASTER interface eth0 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 122.224.224.001 } } virtual_server 122.224.224.001 8888 { delay_loop 6 lb_algo wrr lb_kind DR nat_mask 255.255.255.0 persistence_timeout 50 protocol TCP real_server 122.224.224.002 8888 { weight 2 TCP_CHECK { connect_port 8888 connect_timeout 15 nb_get_retry 3 delay_before_retry 3 } } real_server 122.224.224.003 8888 { weight 1 TCP_CHECK { connect_port 8888 connect_timeout 15 nb_get_retry 3 delay_before_retry 3 } } } 3 启动 lvs:~ # rckeepalived start 启动正常 如下: linux-554e:/etc/keepalived # ps -ef |grep keep root 13820 1 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D root 13821 13820 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D root 13822 13820 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D 4、配置WEB服务器IP2和IP3 修改文件/etc/sysctl.conf添加以下内容: net.ipv4.conf.eth0.arp_ignore = 1 net.ipv4.conf.eth0.arp_announce = 2 net.ipv4.conf.all.arp_ignore = 1 net.ipv4.conf.all.arp_announce = 2 运行 sysctl -p 修改文件/etc/sysconfig/network/ifcfg-lo添加以下内容 IPADDR_0='122.224.224.001' NETMASK_0='255.255.255.255' LABEL_0='0' 运行 rcnetwork restart 一切正常 我现在打开浏览器输入:http://122.224.224.001:8888,理论上应当将服务重定向到http://122.224.224.002:8888或http://122.224.224.002:8888,但是却无法访问,没有重定向成功。 我在IP1上执行ipvsadm -lcn,有如下结果 linux-554e:/etc/keepalived # ipvsadm -lcn IPVS connection entries pro expire state source virtual destination TCP 00:56 SYN_RECV 183.128.209.247:2909 122.224.224.001:8888 122.224.224.002:8888 TCP 00:47 NONE 183.128.209.247:0 122.224.224.001:8888 122.224.224.002:8888 TCP 00:57 SYN_RECV 183.128.209.247:2910 122.224.224.001:8888 122.224.224.002:8888 我在IP1上执行ipvsadm -l,有如下结果 linux-554e:/etc/keepalived # ipvsadm -l IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP linux-554e.site:ddi-tcp-1 wrr persistent 50 -> 122.224.224.002:ddi-tcp-1 Route 2 0 2 -> 122.224.224.003:ddi-tcp-1 Route 1 0 0 我是初次配置LVS,请问各位大侠,我应当如何来配置,才能使我的LVS生效呢!