Oracle Study之-AIX6.1构建主机之间的信任关系（ssh）

Oracle Study之-AIX6.1构建主机之间的信任关系（ssh） 在AIX环境下构建主机信任关系首选rsh，但在构建Oracle 11g RAC时需要ssh支持，以下文档介绍如何在AIX6.1下构建ssh的信任关系。

默认aix没有安装ssh软件包，首先要安装ssh软件包：
1、下载、解压软件包
[root@aix209 ssh]#ls
OpenSSH_5.8.0.6102.tar.Z openssl-0.9.8.1802.tar.Z ssh.txt
解压后通过smit installs安装：
[root@aix209 ssh]#uncompress OpenSSH_5.8.0.6102.tar.Z
[root@aix209 ssh]#uncompress openssl-0.9.8.1802.tar.Z
[root@aix209 ssh]#ls
OpenSSH_5.8.0.6102.tar openssl-0.9.8.1802.tar ssh.txt
[root@aix209 ssh]#tar xvf OpenSSH_5.8.0.6102.tar

x openssh.base, 6310912 bytes, 12326 tape blocks
x openssh.license, 338944 bytes, 662 tape blocks
x openssh.man.en_US, 153600 bytes, 300 tape blocks
x openssh.msg.CA_ES, 20480 bytes, 40 tape blocks
x openssh.msg.CS_CZ, 20480 bytes, 40 tape blocks
x openssh.msg.DE_DE, 20480 bytes, 40 tape blocks
x openssh.msg.EN_US, 17408 bytes, 34 tape blocks
x openssh.msg.ES_ES, 19456 bytes, 38 tape blocks
x openssh.msg.FR_FR, 20480 bytes, 40 tape blocks
x openssh.msg.HU_HU, 21504 bytes, 42 tape blocks
x openssh.msg.IT_IT, 19456 bytes, 38 tape blocks
x openssh.msg.JA_JP, 24576 bytes, 48 tape blocks
x openssh.msg.Ja_JP, 26624 bytes, 52 tape blocks
x openssh.msg.KO_KR, 21504 bytes, 42 tape blocks
x openssh.msg.PL_PL, 20480 bytes, 40 tape blocks
x openssh.msg.PT_BR, 19456 bytes, 38 tape blocks
x openssh.msg.RU_RU, 25600 bytes, 50 tape blocks
x openssh.msg.SK_SK, 20480 bytes, 40 tape blocks
x openssh.msg.ZH_CN, 25600 bytes, 50 tape blocks
x openssh.msg.ZH_TW, 24576 bytes, 48 tape blocks
x openssh.msg.Zh_CN, 21504 bytes, 42 tape blocks
x openssh.msg.Zh_TW, 21504 bytes, 42 tape blocks
x openssh.msg.ca_ES, 19456 bytes, 38 tape blocks
x openssh.msg.cs_CZ, 19456 bytes, 38 tape blocks
x openssh.msg.de_DE, 20480 bytes, 40 tape blocks
x openssh.msg.en_US, 17408 bytes, 34 tape blocks
x openssh.msg.es_ES, 19456 bytes, 38 tape blocks
x openssh.msg.fr_FR, 20480 bytes, 40 tape blocks
x openssh.msg.hu_HU, 27648 bytes, 54 tape blocks
x openssh.msg.it_IT, 19456 bytes, 38 tape blocks
x openssh.msg.ja_JP, 26624 bytes, 52 tape blocks
x openssh.msg.ko_KR, 19456 bytes, 38 tape blocks
x openssh.msg.pl_PL, 27648 bytes, 54 tape blocks
x openssh.msg.pt_BR, 18432 bytes, 36 tape blocks
x openssh.msg.ru_RU, 27648 bytes, 54 tape blocks
x openssh.msg.sk_SK, 19456 bytes, 38 tape blocks
x openssh.msg.zh_CN, 21504 bytes, 42 tape blocks
x openssh.msg.zh_TW, 21504 bytes, 42 tape blocks

[root@aix209 ssh]#ls

OpenSSH_5.8.0.6102.tar  openssh.msg.IT_IT       openssh.msg.Zh_TW       openssh.msg.pl_PL
openssh.base            openssh.msg.JA_JP       openssh.msg.ca_ES       openssh.msg.pt_BR
openssh.license         openssh.msg.Ja_JP       openssh.msg.cs_CZ       openssh.msg.ru_RU
openssh.man.en_US       openssh.msg.KO_KR       openssh.msg.de_DE       openssh.msg.sk_SK
openssh.msg.CA_ES       openssh.msg.PL_PL       openssh.msg.en_US       openssh.msg.zh_CN
openssh.msg.CS_CZ       openssh.msg.PT_BR       openssh.msg.es_ES       openssh.msg.zh_TW
openssh.msg.DE_DE       openssh.msg.RU_RU       openssh.msg.fr_FR       openssl-0.9.8.1802.tar
openssh.msg.EN_US       openssh.msg.SK_SK       openssh.msg.hu_HU       ssh.txt
openssh.msg.ES_ES       openssh.msg.ZH_CN       openssh.msg.it_IT
openssh.msg.FR_FR       openssh.msg.ZH_TW       openssh.msg.ja_JP
openssh.msg.HU_HU       openssh.msg.Zh_CN       openssh.msg.ko_KR

[root@aix209 ssh]#tar xvf OpenSSH_5.8.0.6102.tar

x openssh.base, 6310912 bytes, 12326 tape blocks
x openssh.license, 338944 bytes, 662 tape blocks
x openssh.man.en_US, 153600 bytes, 300 tape blocks
x openssh.msg.CA_ES, 20480 bytes, 40 tape blocks
x openssh.msg.CS_CZ, 20480 bytes, 40 tape blocks
x openssh.msg.DE_DE, 20480 bytes, 40 tape blocks
x openssh.msg.EN_US, 17408 bytes, 34 tape blocks
x openssh.msg.ES_ES, 19456 bytes, 38 tape blocks
x openssh.msg.FR_FR, 20480 bytes, 40 tape blocks
x openssh.msg.HU_HU, 21504 bytes, 42 tape blocks
x openssh.msg.IT_IT, 19456 bytes, 38 tape blocks
x openssh.msg.JA_JP, 24576 bytes, 48 tape blocks
x openssh.msg.Ja_JP, 26624 bytes, 52 tape blocks
x openssh.msg.KO_KR, 21504 bytes, 42 tape blocks
x openssh.msg.PL_PL, 20480 bytes, 40 tape blocks
x openssh.msg.PT_BR, 19456 bytes, 38 tape blocks
x openssh.msg.RU_RU, 25600 bytes, 50 tape blocks
x openssh.msg.SK_SK, 20480 bytes, 40 tape blocks
x openssh.msg.ZH_CN, 25600 bytes, 50 tape blocks
x openssh.msg.ZH_TW, 24576 bytes, 48 tape blocks
x openssh.msg.Zh_CN, 21504 bytes, 42 tape blocks
x openssh.msg.Zh_TW, 21504 bytes, 42 tape blocks
x openssh.msg.ca_ES, 19456 bytes, 38 tape blocks
x openssh.msg.cs_CZ, 19456 bytes, 38 tape blocks
x openssh.msg.de_DE, 20480 bytes, 40 tape blocks
x openssh.msg.en_US, 17408 bytes, 34 tape blocks
x openssh.msg.es_ES, 19456 bytes, 38 tape blocks
x openssh.msg.fr_FR, 20480 bytes, 40 tape blocks
x openssh.msg.hu_HU, 27648 bytes, 54 tape blocks
x openssh.msg.it_IT, 19456 bytes, 38 tape blocks
x openssh.msg.ja_JP, 26624 bytes, 52 tape blocks
x openssh.msg.ko_KR, 19456 bytes, 38 tape blocks
x openssh.msg.pl_PL, 27648 bytes, 54 tape blocks
x openssh.msg.pt_BR, 18432 bytes, 36 tape blocks
x openssh.msg.ru_RU, 27648 bytes, 54 tape blocks
x openssh.msg.sk_SK, 19456 bytes, 38 tape blocks
x openssh.msg.zh_CN, 21504 bytes, 42 tape blocks
x openssh.msg.zh_TW, 21504 bytes, 42 tape blocks

2、通过smit installs安装：
[root@aix209 ssh]#smit installs

3、安装成功后，系统自动启动ssh service：
[root@aix209 ssh]#lssrc -a |grep ssh
sshd ssh 6029368 active

4、配置信任关系（通过建立公钥和私钥）
[grid@aix209 grid]$ssh-keygen -t rsa

Generating public/private rsa key pair.
Enter file in which to save the key (/home/grid/.ssh/id_rsa):
Created directory '/home/grid/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/grid/.ssh/id_rsa.
Your public key has been saved in /home/grid/.ssh/id_rsa.pub.
The key fingerprint is:
46:8c:ac:aa:82:62:b1:5e:e2:ba:ed:d5:02:5e:f5:62 grid@aix209
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|     . o         |
|      + o        |
|     o o         |
|  . o E S        |
| o + o o         |
|..=.o .          |
|==o. .           |
|X=o              |
+-----------------+

[grid@aix209 grid]$ssh-keygen -t dsa

Generating public/private dsa key pair.
Enter file in which to save the key (/home/grid/.ssh/id_dsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/grid/.ssh/id_dsa.
Your public key has been saved in /home/grid/.ssh/id_dsa.pub.
The key fingerprint is:
4a:6d:60:35:ee:1c:fe:7d:62:54:f6:31:5c:7b:4a:54 grid@aix209
The key's randomart image is:
+--[ DSA 1024]----+
|        o     ..E|
|       o .   .. o|
|      o o     +=.|
|     . * .   + o+|
|      . S   . . .|
|     . o . o     |
|      .   . + .  |
|           . o   |
|                 |
+-----------------+

[grid@aix209 ~]$cd .ssh
[grid@aix209 .ssh]$ls
id_dsa id_dsa.pub id_rsa id_rsa.pub
[grid@aix209 .ssh]$cd ..
在另一个node（aix210）同样方式建立密钥对：

[grid@aix210 grid]$ssh-keygen -t rsa
[grid@aix210 grid]$ssh-keygen -t dsa
[grid@aix209 ~]$cat .ssh/id_rsa.pub >>.ssh/authorized_keys
[grid@aix209 ~]$cat .ssh/id_dsa.pub >>.ssh/authorized_keys
[grid@aix209 ~]$ssh aix210 cat .ssh/id_rsa.pub >>.ssh/authorized_keys
The authenticity of host 'aix210 (192.168.8.210)' can't be established.
RSA key fingerprint is 65:25:9b:46:05:a4:84:73:76:d2:ba:d2:c8:a2:91:0e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix210,192.168.8.210' (RSA) to the list of known hosts.
grid@aix210's password:
[grid@aix209 ~]$ssh aix210 cat .ssh/id_dsa.pub >>.ssh/authorized_keys
grid@aix210's password:
将公钥authorized_keys上传到对方主机：
[grid@aix209 ~]$scp .ssh/authorized_keys aix210:~/.ssh
grid@aix210's password:
authorized_keys 100% 1988 1.9KB/s 00:00
验证：
[grid@aix209 ~]$ssh aix210 date
Mon Jan 5 22:24:19 CST 1970
[grid@aix209 ~]$ssh aix210-priv date
The authenticity of host 'aix210-priv (10.10.10.210)' can't be established.
RSA key fingerprint is 65:25:9b:46:05:a4:84:73:76:d2:ba:d2:c8:a2:91:0e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix210-priv,10.10.10.210' (RSA) to the list of known hosts.
Mon Jan 5 22:24:27 CST 1970
[grid@aix209 ~]$ssh aix209-priv date
The authenticity of host 'aix209-priv (10.10.10.209)' can't be established.
RSA key fingerprint is 8f:54:98:0e:1b:c1:81:10:36:88:62:e2:20:61:16:91.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix209-priv,10.10.10.209' (RSA) to the list of known hosts.
Mon Mar 28 18:39:55 CDT 2016
[grid@aix209 ~]$ssh aix209 date
The authenticity of host 'aix209 (192.168.8.209)' can't be established.
RSA key fingerprint is 8f:54:98:0e:1b:c1:81:10:36:88:62:e2:20:61:16:91.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix209,192.168.8.209' (RSA) to the list of known hosts.
Mon Mar 28 18:40:02 CDT 2016

[grid@aix210 ~]$ssh aix209 date
The authenticity of host 'aix209 (192.168.8.209)' can't be established.
RSA key fingerprint is 8f:54:98:0e:1b:c1:81:10:36:88:62:e2:20:61:16:91.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix209,192.168.8.209' (RSA) to the list of known hosts.
Mon Mar 28 18:40:30 CDT 2016
[grid@aix210 ~]$ssh aix209-priv date
The authenticity of host 'aix209-priv (10.10.10.209)' can't be established.
RSA key fingerprint is 8f:54:98:0e:1b:c1:81:10:36:88:62:e2:20:61:16:91.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix209-priv,10.10.10.209' (RSA) to the list of known hosts.
Mon Mar 28 18:40:36 CDT 2016
[grid@aix210 ~]$ssh aix210-priv date
The authenticity of host 'aix210-priv (10.10.10.210)' can't be established.
RSA key fingerprint is 65:25:9b:46:05:a4:84:73:76:d2:ba:d2:c8:a2:91:0e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix210-priv,10.10.10.210' (RSA) to the list of known hosts.
Mon Jan 5 22:25:26 CST 1970
[grid@aix210 ~]$ssh aix210 date
The authenticity of host 'aix210 (192.168.8.210)' can't be established.
RSA key fingerprint is 65:25:9b:46:05:a4:84:73:76:d2:ba:d2:c8:a2:91:0e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'aix210,192.168.8.210' (RSA) to the list of known hosts.
Mon Jan 5 22:25:31 CST 1970
。。。验证通过，信任关系建立成功！

------ 在构建Oracle RAC时，需要Oracle用户也要建立信任关系 。。。