1.1 KeepAlived1.1.17安裝及配置說明
使用源碼方式安裝，
1.1.1 準備工作
tar -zxf keepalived-1.1.13.tar.gz
cp keepalived-1.1.13 /usr/local/src
cd /mnt/suse64/suse/x86_64
rpm -ivhopenssl-devel-0.9.8a-18.26.x86_64.rpm
rpm -ivh popt-devel-1.7-271.27.x86_64.rpm
1.1.2 正式安裝
cd /usr/local/src/keepalived-1.1.16/
./configure
make
make install
應有如下結果
make -C keepalived install
make[1]: Entering directory`/usr/local/src/keepalived-1.1.16/keepalived'
install -d /usr/local/sbin
install -m 700 ../bin/keepalived/usr/local/sbin/
install -d /usr/local/etc/rc.d/init.d
install -m 755 etc/init.d/keepalived.init/usr/local/etc/rc.d/init.d/keepalived
install -d /usr/local/etc/sysconfig
install -m 755etc/init.d/keepalived.sysconfig /usr/local/etc/sysconfig/keepalived
install -d/usr/local/etc/keepalived/samples
install -m 644etc/keepalived/keepalived.conf /usr/local/etc/keepalived/
install -m 644 ../doc/samples/*/usr/local/etc/keepalived/samples/
install -d /usr/local/share/man/man5
install -d /usr/local/share/man/man8
install -m 644../doc/man/man5/keepalived.conf.5 /usr/local/share/man/man5
install -m 644 ../doc/man/man8/keepalived.8/usr/local/share/man/man8
make[1]: Leaving directory `/usr/local/src/keepalived-1.1.16/keepalived'
make -C genhash install
make[1]: Entering directory`/usr/local/src/keepalived-1.1.16/genhash'
install -d /usr/local/bin
install -m 755 ../bin/genhash/usr/local/bin/
install -d /usr/local/share/man/man1
install -m 644 ../doc/man/man1/genhash.1/usr/local/share/man/man1
make[1]: Leaving directory`/usr/local/src/keepalived-1.1.16/genhash'
因爲系統使用suse，而該程序針對redhat系統，所以我們需要自行配置
1.1.3 服務配置
cd /usr/local/etc
mv keepalived /etc （移動配置目錄到etc）
cd sysconfig
mv keepalived /etc/sysconfig （移動程序運行參數配置文件，缺省參數爲使用明細日誌）
在/etc/init.d目錄下建立文件keepalived,內容如下：
#!/bin/sh
#
# Startup script for the Keepalived daemon
#
# processname: keepalived
# pidfile: /var/run/keepalived.pid
# config: /etc/keepalived/keepalived.conf
# chkconfig: - 21 79
# description: Start and stop Keepalived
# Source function library
. /etc/rc.status
# Source configuration file (we setKEEPALIVED_OPTIONS there)
. /etc/sysconfig/keepalived
rc_reset
prog="keepalived"
start() {
echo -n $"Starting $prog: "
$prog ${KEEPALIVED_OPTIONS}
rc_status -v
touch /var/lock/subsys/$prog
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog
rc_status -v
rm -f /var/lock/subsys/$prog
}
reload() {
echo -n $"Reloading $prog: "
killproc $prog -1
echo
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
reload)
reload
;;
restart)
stop
start
;;
condrestart)
if [ -f /var/lock/subsys/$prog ]; then
stop
start
fi
;;
status)
/sbin/checkproc $prog
rc_status -v
;;
*)
echo "Usage: $0{start|stop|reload|restart|condrestart|status}"
exit 1
;;
esac
rc_exit
保證該文件的權限信息如下：
-rwxr-xr-x 1 root root 1.2K 2009-04-2014:13 keepalived
chkconfig --level 35 keepalived on #set the keepalived service auto start whenthe system is booting
#copy the config which name iskeepalived.conf to /etc/keepalived(dir)
#this config file declare the vrrp rule.
啓動/停止/重新裝載配置/當前運行狀態:
service keepalived start|stop|reload|status
診斷IP情況命令
ip addr
1.1.4 配置文件參考
文件在/etc/keepalived/目錄下
Master的配置文件
vrrp_instance VI_INET1 {
state MASTER #(主機爲MASTER，備用機爲BACKUP)
interface eth0 #(HA監測網絡接口)
mcast_src_ip 192.168.7.191 #(VRRP Multicast廣播源地址，分別取主、備機地址，不能取與virtual_ipaddress相同)
track_interface {
Eth1 #監測狀態的接口
}
virtual_router_id 53 #(主、備機的virtual_router_id必須相同)
priority 200 #(主、備機取不同的優先級，主機值較大，備份機值較小,值越大優先級越高)
advert_int 5 #(VRRP Multicast廣播週期秒數)
authentication {
auth_type pass #(VRRP認證方式)
auth_pass yourpass #(VRRP口令字)
}
virtual_ipaddress {
192.168.7.100 #(VRRP HA虛擬地址)
}
}
Slave的配置文件
vrrp_instance VI_INET1 {
state BACKUP
interface eth0
track_interface {
eth1
}
virtual_router_id 53
priority 100
advert_int 5
authentication {
auth_type pass
auth_pass yourpass
}
virtual_ipaddress {
192.168.7.100
}
}
track_interface的意思是將Linux中你想監控的網絡接口卡監控起來，當其中的一塊出現故障是keepalived都將視爲路由器出現故障。