lvs 部署过程记录

昨天使用yum命令安装ipvsadm的时候发现异常

yum install ipvsadm

# ipvsadm

FATAL: Error inserting ip_vs (/lib/modules/2.6.32-573.8.1.el6.x86_64/kernel/net/netfilter/ipvs/ip_vs.ko): Unknown symbol in module, or unknown parameter (see dmesg)

Can't initialize ipvs: Protocol not available

Are you sure that IP Virtual Server is built in the kernel or as module?

查看dmesg

报如下错误

ip_vs: Unknown symbol ip6_local_out

ip_vs: Unknown symbol ip6_route_me_harder

ip_vs: Unknown symbol ipv6_dev_get_saddr

ip_vs: Unknown symbol ip6_route_output

ip_vs: Unknown symbol icmpv6_send

查看/etc/modprobe.d/

解决其实很简单，但是根据错误去baidu/google找不到比较简单的答案

#mv ipv6.conf ipv6.conf.bak

#touch disable_ipv6.conf

内容贴进去即可

alias net-pf-10 off

alias ipv6 off

options ipv6 disable=1

这样再次执行 ipvsadm 正常就不会报错了

这里设定对外的虚IP是 10.0.2.222

lvs:

ifconfig eth0:0 10.0.2.222 broadcast 10.0.2.222 netmask 255.255.255.255 up

route add -host 10.0.2.222 dev eth0:0

ipvsadm -C

ipvsadm -A -t 10.0.2.222:80 -s rr -p 600

ipvsadm -a -t 10.0.2.222:80 -r 10.0.2.68:80 -g

ipvsadm

rs:

ifconfig lo:0 10.0.2.222 broadcast 10.0.2.222 netmask 255.255.255.255 up

route add -host 10.0.2.222 dev lo:0

echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore

echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce

echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore

echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce

sysctl -p

这个是否正常就会生效了，具体可以使用tcpdump跟踪看看