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LVS + piranha 之NAT配置

[不指定 2008/09/14 11:02 | by askwan ]
OS  :    centos4.6
VIP ：       192.168.18.240
LoadBalance:  eth0： 192.168.18.241
             eth1： 10.10.10.241            
BackUp:      eth0:   192.168.18.242
             eth1:   10.10.10.242

Real Server1:  10.10.10.243
RealServer2:    10.10.10.244
Gateway    :   10.10.10.241(10.10.10.242)

1.  安装piranha和ipvsadm
2.  设置piranha密码
piranha-passwd
3.  启动piranha-gui
service piranha-gui start
4.  配置LVS
http://192.168.18.241:3636

具体配置过程不详述
附上配置文件
vim /etc/sysconfig/ha/lvs.cf

serial_no = 14
primary = 192.168.18.241
service = lvs
backup_active = 1
backup = 192.168.18.242
heartbeat = 1
heartbeat_port = 539
keepalive = 6
deadtime = 18
network = nat
nat_router = 10.10.10.241 eth1
nat_nmask = 255.255.255.0
debug_level = NONE
monitor_links = 0
virtual webserv {
     active = 1
     address = 192.168.18.240 eth0:1
     vip_nmask = 255.255.255.0
     port = 80
     send = "GET / HTTP/1.0\r\n\r\n"
     expect = "HTTP"
     use_regex = 0
     load_monitor = none
     scheduler = wlc
     protocol = tcp
     timeout = 6
     reentry = 15
     quiesce_server = 0
     server node1 {
         address = 10.10.10.243
         active = 1
         weight = 50
     }
     server node2 {
         address = 10.10.10.244
         active = 1
         weight = 50
     }
}
5.  将配置文件copy至Backup相应目录下
6.  分别在LB和BackUp上启用数据转发
# vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
#sysctl  -p

7.  启动RealServer上httpd服务
8.  启动LB和Backup上pulse
Quotation
#service pulse start

9.  测试
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LVS  + piranha 之Tunnel配置

[不指定 2008/09/14 07:49 | by askwan ]
OS  :    centos4.6
VIP ：       192.168.18.200
LoadBalance:  192.168.18.241
BackUp:      192.168.18.242
Real Server1:  192.168.18.243
RealServer2:    192.168.18.244

1.  安装piranha和ipvsadm
2.  设置piranha密码
piranha-passwd
3.  启动piranha-gui
service piranha-gui start
4.  配置LVS
http://192.168.18.241:3636

具体配置过程不详述
附上配置文件
vim /etc/sysconfig/ha/lvs.cf
serial_no = 14
primary = 192.168.18.241
service = lvs
backup_active = 1
backup = 192.168.18.242
heartbeat = 1
heartbeat_port = 539
keepalive = 6
deadtime = 18
network = tunnel
debug_level = NONE
monitor_links = 0
virtual webserv {
     active = 1
     address = 192.168.18.240 eth0:1
     vip_nmask = 255.255.255.0
     port = 80
     send = "GET / HTTP/1.0\r\n\r\n"
     expect = "HTTP"
     use_regex = 0
     load_monitor = none
     scheduler = wrr
     protocol = tcp
     timeout = 6
     reentry = 15
     quiesce_server = 0
     server node1 {
         address = 192.168.18.243
         active = 1
         weight = 50
     }
     server node2 {
         address = 192.168.18.244
         active = 1
         weight = 50
     }
}


5.  将配置文件copy至Backup相应目录下
6.  分别在LB和BackUp上启用数据转发
# vi /etc/sysctl.conf
net.ipv4.ip_forward = 0
修改为
net.ipv4.ip_forward = 1
#sysctl  -p

7.  配置RealServer

创建IP Tunnel
Quotation
# ifconfig tunl0 192.168.18.240 netmask 255.255.255.255 broadcast 192.168.18.240 up

将tunl0加入路由表（routing table）
Quotation
# route add -host 192.168.18.240 dev tunl0

Quotation

#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce


8.  启动RealServer上httpd服务
9.  启动LB和Backup上pulse
Quotation
#service pulse start

10.  测试
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LVS + piranha  之DR配置

[不指定 2008/09/14 07:45 | by askwan ]
OS  :  centos4.6
VIP ：       192.168.18.200
LoadBalance:  192.168.18.241
BackUp:      192.168.18.242
Real Server1:  192.168.18.243
RealServer2:  192.168.18.244
Gateway    :   192.168.18.1

1.  安装piranha和ipvsadm
2.  设置piranha密码
piranha-passwd
3.  启动piranha-gui
service piranha-gui start
4.  配置LVS
http://192.168.18.241:3636

具体配置过程不详述
附上配置文件
vim /etc/sysconfig/ha/lvs.cf

serial_no = 16
primary = 192.168.18.241
service = lvs
backup_active = 1
backup = 192.168.18.242
heartbeat = 1
heartbeat_port = 539
keepalive = 6
deadtime = 18
network = direct
debug_level = NONE
monitor_links = 0
virtual webserv {
     active = 1
     address = 192.168.18.240 eth0:1
     vip_nmask = 255.255.255.0
     port = 80
     send = "GET / HTTP/1.0\r\n\r\n"
     expect = "HTTP"
     use_regex = 0
     load_monitor = none
     scheduler = wrr
     protocol = tcp
     timeout = 6
     reentry = 15
     quiesce_server = 0
     server node1 {
         address = 192.168.18.243
         active = 1
         weight = 50
     }
     server node2 {
         address = 192.168.18.244
         active = 1
         weight = 50
     }
}

5.  将配置文件copy至Backup相应目录下
6.  分别在LB和BackUp上启用数据转发
# vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
#sysctl  -p

7.  配置RealServer

Quotation
#ifconfig lo:0 192.168.18.240 broadcast 192.168.18.240 netmask 255.255.255.255 up
#route add -host 192.168.18.240 dev lo:0


关闭ARP广播响应
Quotation
#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce



8.  启动RealServer上httpd服务
9.  启动LB和Backup上pulse
Quotation
#service pulse start

10.  测试
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httpd: apr_sockaddr_info_get() failed 错误

[不指定 2008/09/11 09:50 | by askwan ]
今天一客户机器出现这种错误

Quotation
[root@server ]/usr/local/apache2/bin/apachectl start
httpd: apr_sockaddr_info_get() failed for server
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName

一般是由于系统hostname设置不当或者混乱造成的
解决方法：
确保系统hostname指令得出的值与 /etc/hosts 和 /etc/sysconfig/network所对应的值一致

这也提醒我们 修改系统的主机名 为了不必要的麻烦 就要同时修改这两个文件才行
再次启动httpd 就不会有这个错误了
至于下面这一行 设置apache配置文件 将ServerName 设置为对应IP地址即可
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