23：LVS客户端配置脚本案例

[root@web03 scripts]# cat prevent_arp.sh
#!/bin/bash

lo_ip=$(ip a s lo|grep "10.0.0.1[3]/32"|wc -l)

if [ $lo_ip -eq  ]
then
    ip addr add 10.0.0.13/ dev lo
fi

ip_cnf=$(egrep "net.ipv4.conf" /etc/sysctl.conf|wc -l)

if [ $ip_cnf -lt  ]
then

    cat >>/etc/sysctl.conf<<-EOF
    net.ipv4.conf.all.arp_ignore =
    net.ipv4.conf.all.arp_announce =
    net.ipv4.conf.lo.arp_ignore =
    net.ipv4.conf.lo.arp_announce =
    EOF

    sysctl -p
fi