-----------------------------新安装的干净centos---------------------------------------


安装keepalived遇到的一些问题：
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1.更新yum源安装所需的库文件
yum install gcc* c++ * autoconf automake zlib*  libxml* ncurses-devel libmcrypt* 

libtool-ltdl-devel* popt-devel
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2.安装ipvsadm遇到如下错误：

make[1]: *** [libipvs.o] Error 1
make[1]: Leaving directory `/root/keepalived/ipvsadm-1.24/libipvs'
make: *** [libs] Error 2

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解决办法：
[root@localhost lib]# yum install kernel-devel -y
[root@localhost lib]# ln -s /usr/src/kernels/2.6.32-279.19.1.el6.i686/ 

/usr/src/linux
再次make如下：
[root@localhost ipvsadm-1.24]# make
make -C libipvs
make[1]: Entering directory `/root/keepalived/ipvsadm-1.24/libipvs'
gcc -Wall -Wunused -Wstrict-prototypes -g -O2 -I/usr/src/linux/include  -

DHAVE_NET_IP_VS_H -c -o libipvs.o libipvs.c
ar rv libipvs.a libipvs.o
ar: creating libipvs.a
a - libipvs.o
make[1]: Leaving directory `/root/keepalived/ipvsadm-1.24/libipvs'
gcc -Wall -Wunused -Wstrict-prototypes -g -O2 -I/usr/src/linux/include -I.. -I. 

-DVERSION=\"1.24\" -DSCHEDULERS=\""rr|wrr|lc|wlc|lblc|lblcr|dh|sh|sed|nq"\"  -

DHAVE_NET_IP_VS_H -c -o ipvsadm.o ipvsadm.c
gcc -Wall -Wunused -Wstrict-prototypes -g -O2 -I/usr/src/linux/include -I.. -I. 

-DVERSION=\"1.24\" -DSCHEDULERS=\""rr|wrr|lc|wlc|lblc|lblcr|dh|sh|sed|nq"\"  -

DHAVE_NET_IP_VS_H -c -o config_stream.o config_stream.c
gcc -Wall -Wunused -Wstrict-prototypes -g -O2 -I/usr/src/linux/include -I.. -I. 

-DVERSION=\"1.24\" -DSCHEDULERS=\""rr|wrr|lc|wlc|lblc|lblcr|dh|sh|sed|nq"\"  -

DHAVE_NET_IP_VS_H -c -o dynamic_array.o dynamic_array.c
gcc -Wall -Wunused -Wstrict-prototypes -g -O2 -o ipvsadm ipvsadm.o 

config_stream.o dynamic_array.o libipvs/libipvs.a 

make install 能顺利完成

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3.安装keepalived遇到问题：
[root@localhost keepalived-1.2.7]# ./configure --prefix=/usr/local/keepalived
出现：
checking for sys/time.h... yes
checking openssl/ssl.h usability... no
checking openssl/ssl.h presence... no
checking for openssl/ssl.h... no
configure: error: 
  !!! OpenSSL is not properly installed on your system. !!!
  !!! Can not include OpenSSL headers files.  


意思就是缺少openssl文件
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解决办法：
yum -y install openssl-devel*
再次执行
[root@localhost keepalived-1.2.7]# ./configure --prefix=/usr/local/keepalived
成功！！！！

但是make时又出现错误
make: *** No targets specified and no makefile found. Stop.
将解压完的目录全部删除，重新编译又出现如下问题。

checking for SSL_CTX_new in -lssl... yes
checking for poptGetContext in -lpopt... no
configure: error: Popt libraries is required

解决办法：
[root@localhost keepalived-1.2.7]# yum install popt-devel

出现如下：
Keepalived configuration
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Keepalived version       : 1.2.7
Compiler                 : gcc
Compiler flags           : -g -O2
Extra Lib                : -lpopt -lssl -lcrypto 
Use IPVS Framework       : Yes
IPVS sync daemon support : Yes
IPVS use libnl           : No（缺少lib文件）
Use VRRP Framework       : Yes
Use VRRP VMAC            : Yes
SNMP support             : No
Use Debug flags          : No

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解决办法：
[root@localhost keepalived-1.2.7]# yum -y install libnl-devel

OK如下所示：
Keepalived configuration
------------------------
Keepalived version       : 1.2.7
Compiler                 : gcc
Compiler flags           : -g -O2
Extra Lib                : -lpopt -lssl -lcrypto  -lnl
Use IPVS Framework       : Yes
IPVS sync daemon support : Yes
IPVS use libnl           : Yes
Use VRRP Framework       : Yes
Use VRRP VMAC            : Yes
SNMP support             : No
Use Debug flags          : No

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 cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
 cp /usr/local/keepalived/etc/sysconfig/keepalived  /etc/sysconfig/
 mkdir /etc/keepalived
 mkdir -pv/etc/keepalived
 mkdir -pv /etc/keepalived
 cp /usr/local/keepalived/etc/keepalived/keepalived.conf  /etc/keepalived/
 ln -s /usr/local/keepalived/sbin/keepalived /sbin/
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 service keepalived start

到此lvs+keepalived已经成功安装完成！！！！！！！！！！！！！！！！！！剩下的就是

更改配置文件了。