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| LinkedIn如何修改11gR2 RAC PRIVATE IP
& & & & & &在一套数据库系统搭建之前，本应该认真规划存储、网络、主机名等基本配置信息的，一旦确定下来，就不要轻易去改诸如hostname、IP地址等配置信息。除非不得已或规划有问题的前提下，我们需要不得已而为之。这不，自己就犯下了这个错误：之前在OEL 5.5 X86_64位系统上搭建了一套11gR2 的双节点RAC做测试用，用完之后，就连两台服务器都shutdown。后来，又搭建了一套新的OEL 5.5 X86_64+11gR2 RAC的开发系统，由于自己的疏忽，这套开发用的RAC机器的私有IP（private IP）同原来的那套测试RAC私有IP地址冲突，现在想用原来的那套RAC问题就来了，根本就无法使用，因为测试RAC根本启不来！！！自己搬石头砸自己脚啊，不过呢，好在自己给这套开发的RAC系统搭建了一套物理dataguard，于是乎，先将开发RAC系统作一个switchover先切换至物理备库，然后停开发RAC系统，启动测试RAC系统，修改测试RAC系统的私有IP，这样，改完Private IP之后，两套RAC就都可以正常使用了。绕弯了，呵呵，谁让自己前期没有规划好了，算是给自己一个教训。
& & & & & &本文就简单记录一下在OEL 5.5 X86_64+11gR2 RAC系统下如何修改私有IP？
& & & & & 1 修改Private IP前，服务器IP配置信息：
Source IP Configuration
IP Address
Domain Name
172.16.0.191
rac1.localdomain&
private IP
192.168.93.1
rac1-priv.localdomain
virtual IP
172.16.0.193
rac1-vip.localdomain
172.16.0.192
rac2.localdomain
private IP
192.168.93.2
rac2-priv.localdomain
virtual IP
172.16.0.194
rac2-vip.localdomain
172.16.0.203
rac-scan.localdomain
& & & & & & & 欲将Private IP修改为下述目标配置：
Target IP configuration
IP Address
Domain Name
172.16.0.191
rac1.localdomain&
private IP
192.168.94.1
rac1-priv.localdomain
virtual IP
172.16.0.193
rac1-vip.localdomain
172.16.0.192
rac2.localdomain
private IP
192.168.94.2
rac2-priv.localdomain
virtual IP
172.16.0.194
rac2-vip.localdomain
172.16.0.203
rac-scan.localdomain
& & & & & 2&修改Private IP前，节点1服务器/etc/hosts配置文件内容：
[root@rac1 ~]# uname -rm
2.6.18-194.el5xen x86_64
[root@rac1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#127.0.0.1
localhost.localdomain localhost
localhost6.localdomain6 localhost6
#172.16.0.191
rac1.localdomain rac1
172.16.0.191
rac1.localdomain
172.16.0.193
rac1-vip.localdomain
192.168.93.1
rac1-priv.localdomain
172.16.0.192
rac2.localdomain
172.16.0.194
rac2-vip.localdomain
192.168.93.2
rac2-priv.localdomain
172.16.0.203
rac-scan.localdomain
[root@rac1 ~]#
& & & & & 3&修改Private IP前，服务器RAC集群服务信息：
[root@rac1 ~]# su - grid
rac1-& crs_stat -t
------------------------------------------------------------
ora.DATADG.dg
ora....up.type ONLINE
ora.GRIDDG.dg
ora....up.type ONLINE
ora....ER.lsnr ora....er.type ONLINE
ora....N1.lsnr ora....er.type ONLINE
ora.asm.type
ora.devdb.db
ora....se.type ONLINE
ora.eons.type
ora.gsd.type
ora....network ora....rk.type ONLINE
ora.oc4j.type
ora.ons.type
ora....SM1.asm application
ora....C1.lsnr application
ora.rac1.gsd
application
ora.rac1.ons
application
ora.rac1.vip
ora....t1.type ONLINE
ora....SM2.asm application
ora....C2.lsnr application
ora.rac2.gsd
application
ora.rac2.ons
application
ora.rac2.vip
ora....t1.type ONLINE
ora....ry.acfs ora....fs.type ONLINE
ora.scan1.vip
ora....ip.type ONLINE
& & & & & 4&用oifcfg开始修改Private IP：
& & & & & & &修改Private IP之前，grid用户用olsnodes确认节点状态：
rac1-& olsnodes -n -s
rac1-& oifcfg getif
172.16.0.0
192.168.93.0
cluster_interconnect
& & & & & & &修改Private IP，grid用户用oifcfg命令修改，修改之后，并删掉之前的那条配置信息：
rac1-& oifcfg setif -global eth1/192.168.94.0:cluster_interconnect
rac1-& oifcfg getif
172.16.0.0
192.168.93.0
cluster_interconnect
192.168.94.0
cluster_interconnect
rac1-& oifcfg delif -global eth1/192.168.93.0
rac1-& oifcfg getif
172.16.0.0
192.168.94.0
cluster_interconnect
& & & & & & &修改Private IP之后，记得确认：
rac1-& oifcfg getif
172.16.0.0
192.168.94.0
cluster_interconnect
& & & & & 5 关闭数据库、集群服务：
rac1-& srvctl stop database -d devdb
& & & & & root用户停集群服务：
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/crsctl stop cluster -all
CRS-2673: Attempting to stop 'ora.crsd' on 'rac2'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac2'
CRS-2673: Attempting to stop 'ora.oc4j' on 'rac2'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'rac2'
CRS-2673: Attempting to stop 'ora.GRIDDG.dg' on 'rac2'
CRS-2673: Attempting to stop 'ora.registry.acfs' on 'rac2'
CRS-2673: Attempting to stop 'ora.DATADG.dg' on 'rac2'
CRS-2673: Attempting to stop 'ora.gsd' on 'rac2'
CRS-2673: Attempting to stop 'ora.LISTENER_SCAN1.lsnr' on 'rac2'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.GRIDDG.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.registry.acfs' on 'rac1'
CRS-2673: Attempting to stop 'ora.DATADG.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.gsd' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.rac2.vip' on 'rac2'
CRS-2677: Stop of 'ora.LISTENER_SCAN1.lsnr' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.scan1.vip' on 'rac2'
CRS-2677: Stop of 'ora.rac2.vip' on 'rac2' succeeded
CRS-2677: Stop of 'ora.scan1.vip' on 'rac2' succeeded
CRS-2677: Stop of 'ora.gsd' on 'rac2' succeeded
CRS-2677: Stop of 'ora.registry.acfs' on 'rac2' succeeded
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.rac1.vip' on 'rac1'
CRS-2677: Stop of 'ora.gsd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.rac1.vip' on 'rac1' succeeded
CRS-2677: Stop of 'ora.registry.acfs' on 'rac1' succeeded
CRS-2677: Stop of 'ora.GRIDDG.dg' on 'rac2' succeeded
CRS-2677: Stop of 'ora.GRIDDG.dg' on 'rac1' succeeded
CRS-2677: Stop of 'ora.DATADG.dg' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'rac2'
CRS-2677: Stop of 'ora.DATADG.dg' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2677: Stop of 'ora.asm' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.eons' on 'rac1'
CRS-2673: Attempting to stop 'ora.ons' on 'rac1'
CRS-2677: Stop of 'ora.ons' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.net1.network' on 'rac1'
CRS-2677: Stop of 'ora.net1.network' on 'rac1' succeeded
CRS-2677: Stop of 'ora.oc4j' on 'rac2' succeeded
CRS-2677: Stop of 'ora.eons' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.ons' on 'rac2'
CRS-2673: Attempting to stop 'ora.eons' on 'rac2'
CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac1' has completed
CRS-2677: Stop of 'ora.ons' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.net1.network' on 'rac2'
CRS-2677: Stop of 'ora.net1.network' on 'rac2' succeeded
CRS-2677: Stop of 'ora.eons' on 'rac2' succeeded
CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac2' has completed
CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'rac1'
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac1'
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2677: Stop of 'ora.cssdmonitor' on 'rac1' succeeded
CRS-2677: Stop of 'ora.crsd' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'rac2'
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac2'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac2'
CRS-2673: Attempting to stop 'ora.asm' on 'rac2'
CRS-2677: Stop of 'ora.cssdmonitor' on 'rac2' succeeded
CRS-2677: Stop of 'ora.evmd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.evmd' on 'rac2' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac2' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
CRS-2677: Stop of 'ora.asm' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac2'
CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.diskmon' on 'rac1'
CRS-2677: Stop of 'ora.cssd' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.diskmon' on 'rac2'
CRS-2677: Stop of 'ora.diskmon' on 'rac1' succeeded
CRS-2677: Stop of 'ora.diskmon' on 'rac2' succeeded
[root@rac1 ~]#
& & & & & 6 修改双节点/etc/hosts配置文件后：
[root@rac1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#127.0.0.1
localhost.localdomain localhost
localhost6.localdomain6 localhost6
172.16.0.191
rac1.localdomain
172.16.0.193
rac1-vip.localdomain
192.168.94.1
rac1-priv.localdomain
172.16.0.192
rac2.localdomain
172.16.0.194
rac2-vip.localdomain
192.168.94.2
rac2-priv.localdomain
172.16.0.203
rac-scan.localdomain
[root@rac1 ~]#
& & & & & 7 修改双节点Private IP：
& & & & & & &记得一定要修改双节点/etc/sysconfig/network-scripts/ifcfg-eth1配置文件，因为，不修改的话，下次重启服务器后，Private IP又变成了旧的Private IP，因为ifconfig 配置的IP地址只是临时生效，这步骤切记！
[root@rac1 ~]# ifconfig eth1 192.168.94.1 netmask 255.255.255.0
& & & & & & &修改前节点1&/etc/sysconfig/network-scripts/ifcfg-eth1：
[root@rac1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth1
BOOTPROTO=none
BROADCAST=192.168.93.255
HWADDR=00:0C:29:E8:15:5E
IPADDR=192.168.93.1
NETMASK=255.255.255.0
NETWORK=192.168.93.0
ONBOOT=yes
TYPE=Ethernet
[root@rac1 ~]#
& & & & & & &修改后节点1&/etc/sysconfig/network-scripts/ifcfg-eth1：
[root@rac1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth1
BOOTPROTO=none
BROADCAST=192.168.94.255
HWADDR=00:0C:29:E8:15:5E
IPADDR=192.168.94.1
NETMASK=255.255.255.0
NETWORK=192.168.94.0
ONBOOT=yes
TYPE=Ethernet
[root@rac1 ~]#
& & & & & & &节点2如法炮制，不再赘述。
& & & & &8 启动集群服务，启动数据库。至此，完成在OEL 5.5 X86_64+11gR2 RAC系统下修改私有IP。
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保护网上个人隐私 停止调查个人隐私 protect your online privarcy
Cease Your Hunting for Privacy 保护网上个人隐私 停止调查个人隐私 protect your online privarcy
Cease Your Hunting for Privacy 保护网上个人隐私 停止调查个人隐私
In recent years, many newspapers and magazines feature stories about the private life of film stars, pop singers or even some famous political figures.Reporters disguise their identities, infiltrate the subjects＇ business and family, or even bug and wiretap themto get the firsthand news by whatever means nec
Their single motive is to raise the publication and hence a huge profit by means of satisfying the readers＇ curiosity in the name of &people＇s right to know.& However, at the same time,the bad effects they bring to the famous people, the public readers and even the whole society are countless.
Standing in the shoes of those exposed people, you＇ll find out that their legal right of privacy is deprived by such press attention. What awaits them is severe injury. To escape the hunters, Catherine Zeta Jones, when conceiving her second child,had to pay millions of dollars in avoiding cameras of those who illegally broke in, the result of which is that the other day when she gotup,thereportstitled&Catherinespentsix million dollars...& dramatically appeared on the front page of all news
What a ridicule! The reporters＇ ability to hunt privacy turns out endless nightmares of the famous who are under the pressure of public media and suddenly become sensitively cautious or easily raged, being afraid of losing their reputation and receiving accidental insults. Compared with Princess Diana who was famous and popular at the cost of her young, beautiful life, should Catherine say &Thank you?&
Thanks to whom? To theprivacy hunters,the public media, the social phenomena caused by news feature stories, or maybe all of us who are misled by such media? With our curiosity to others＇ privacy wrongly aroused,our taste of culture and life is on the decrease, our passion transferred from our own life and career. What＇s worse, we eventually become the accomplices who join in the vicious cycles of the whole enterprise.At least two main victims suffer in the hunting.And the third is no doubt the whole society who bears all kinds of losses,from the suicide of the young talented actress to the give up of new stars in scientific field who intended to devote their brilliance to the whole world. Even the prime minister of Britain is recently bothered by the &scandal& of his wife. As a result, he fails to deal efficiently with the national events.
To avoid such tragedies, hunters, please cease your illegal photography, and your dangerous hunting for privacy.小编建议：
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