本文主要向大家介绍了Oracle数据库之Oralce 自带创建互信脚本-sshUserSetup.sh，通过具体的内容向大家展现，希望对大家学习Oracle数据库有所帮助。

Oracle 12cR1 测试自带互信脚本，路径为安装文件解压后的./grid/sshsetup/下

1.脚本路径

<roidb01:+ASM:/home/grid>$cd /soft/grid
<roidb01:+ASM:/soft/grid>$ls
install  response  rpm  runcluvfy.sh  runInstaller  sshsetup  stage  welcome.html
<roidb01:+ASM:/soft/grid>$cd sshsetup/
<roidb01:+ASM:/soft/grid/sshsetup>$ls
sshUserSetup.sh
<roidb01:+ASM:/soft/grid/sshsetup>$

2.脚本帮助

<roidb01:orcl:/home/oracle>$cd /soft/grid/
<roidb01:orcl:/soft/grid>$ls
install  response  rpm  runcluvfy.sh  runInstaller  sshsetup  stage  welcome.html
<roidb01:orcl:/soft/grid>$./sshsetup/sshUserSetup.sh -h
Please specify a valid and existing cluster configuration file.
Either user name or host information is missing
Usage ./sshsetup/sshUserSetup.sh -user <user name> [ -hosts "<space separated hostlist>" | -hostfile <absolute path of cluster configuration file> ] [ -advanced ]  [ -verify] [ -exverify ] [ -logfile <desired absolute path of logfile> ] [-confirm] [-shared] [-help] [-usePassphrase] [-noPromptPassphrase]

3.执行脚本，需要输入用户和主机名，后续还要输入密码

<roidb01:orcl:/soft/grid>$./sshsetup/sshUserSetup.sh -user grid -hosts "roidb01 roidb02" -advanced -noPromptPassphrase   
The output of this script is also logged into /tmp/sshUserSetup_2017-09-14-08-02-35.log
Hosts are roidb01 roidb02
user is grid
Platform:- Linux 
Checking if the remote hosts are reachable
PING roidb01 (192.168.1.111) 56(84) bytes of data.
64 bytes from roidb01 (192.168.1.111): icmp_seq=1 ttl=64 time=0.014 ms
64 bytes from roidb01 (192.168.1.111): icmp_seq=2 ttl=64 time=0.020 ms
64 bytes from roidb01 (192.168.1.111): icmp_seq=3 ttl=64 time=0.023 ms
64 bytes from roidb01 (192.168.1.111): icmp_seq=4 ttl=64 time=0.022 ms
64 bytes from roidb01 (192.168.1.111): icmp_seq=5 ttl=64 time=0.022 ms

--- roidb01 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.014/0.020/0.023/0.004 ms
PING roidb02 (192.168.1.112) 56(84) bytes of data.
64 bytes from roidb02 (192.168.1.112): icmp_seq=1 ttl=64 time=0.314 ms
64 bytes from roidb02 (192.168.1.112): icmp_seq=2 ttl=64 time=0.159 ms
64 bytes from roidb02 (192.168.1.112): icmp_seq=3 ttl=64 time=0.198 ms
64 bytes from roidb02 (192.168.1.112): icmp_seq=4 ttl=64 time=0.200 ms
64 bytes from roidb02 (192.168.1.112): icmp_seq=5 ttl=64 time=0.322 ms

--- roidb02 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 0.159/0.238/0.322/0.068 ms
Remote host reachability check succeeded.
The following hosts are reachable: roidb01 roidb02.
The following hosts are not reachable: .
All hosts are reachable. Proceeding further...
firsthost roidb01
numhosts 2
The script will setup SSH connectivity from the host roidb01 to all
the remote hosts. After the script is executed, the user can use SSH to run
commands on the remote hosts or copy files between this host roidb01
and the remote hosts without being prompted for passwords or confirmations.

NOTE 1:
As part of the setup procedure, this script will use ssh and scp to copy
files between the local host and the remote hosts. Since the script does not
store passwords, you may be prompted for the passwords during the execution of
the script whenever ssh or scp is invoked.

NOTE 2:
AS PER SSH REQUIREMENTS, THIS SCRIPT WILL SECURE THE USER HOME DIRECTORY
AND THE .ssh DIRECTORY BY REVOKING GROUP AND WORLD WRITE PRIVILEDGES TO THESE
directories.

Do you want to continue and let the script make the above mentioned changes (yes/no)?
yes

The user chose yes
User chose to skip passphrase related questions.
Creating .ssh directory on local host, if not present already
Creating authorized_keys file on local host
Changing permissions on authorized_keys to 644 on local host
Creating known_hosts file on local host
Changing permissions on known_hosts to 644 on local host
Creating config file on local host
If a config file exists already at /home/oracle/.ssh/config, it would be backed up to /home/oracle/.ssh/config.backup.
Removing old private/public keys on local host
Running SSH keygen on local host with empty passphrase
Generating public/private rsa key pair.
Your identification has been saved in /home/oracle/.ssh/id_rsa.
Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.
The key fingerprint is:
6e:ce:31:81:d0:9a:8e:fe:04:2b:e1:68:49:17:46:4d oracle@roidb01
The key's randomart image is:
+--[ RSA 1024]----+
|   .oE           |
|  .  o           |
|   o. .          |
|  . .+ .         |
|....o . S        |
|+.o=   . .       |
|o+o o   =        |
|.o .   + o       |
|  ...   o        |
+-----------------+
Creating .ssh directory and setting permissions on remote host roidb01
THE SCRIPT WOULD ALSO BE REVOKING WRITE PERMISSIONS FOR group AND others ON THE HOME DIRECTORY FOR grid. THIS IS AN SSH REQUIREMENT.
The script would create ~grid/.ssh/config file on remote host roidb01. If a config file exists already at ~grid/.ssh/config, it would be backed up to ~grid/.ssh/config.backup.
The user may be prompted for a password here since the script would be running SSH on host roidb01.
Warning: Permanently added 'roidb01,192.168.1.111' (ECDSA) to the list of known hosts.
grid@roidb01's password: 
Done with creating .ssh directory and setting permissions on remote host roidb01.
Creating .ssh directory and setting permissions on remote host roidb02
THE SCRIPT WOULD ALSO BE REVOKING WRITE PERMISSIONS FOR group AND others ON THE HOME DIRECTORY FOR grid. THIS IS AN SSH REQUIREMENT.
The script would create ~grid/.ssh/config file on remote host roidb02. If a config file exists already at ~grid/.ssh/config, it would be backed up to ~grid/.ssh/config.backup.
The user may be prompted for a password here since the script would be running SSH on host roidb02.
Warning: Permanently added 'roidb02,192.168.1.112' (ECDSA) to the list of known hosts.
grid@roidb02's password: 
Done with creating .ssh directory and setting permissions on remote host roidb02.
Copying local host public key to the remote host roidb01
The user may be prompted for a password or passphrase here since the script would be using SCP for host roidb01.
grid@roidb01's password: 
Done copying local host public key to the remote host roidb01
Copying local host public key to the remote host roidb02
The user may be prompted for a password or passphrase here since the script would be using SCP for host roidb02.
grid@roidb02's password: 
Done copying local host public key to the remote host roidb02
Creating keys on remote host roidb01 if they do not exist already. This is required to setup SSH on host roidb01.
Generating public/private rsa key pair.
Your identification has been saved in .ssh/id_rsa.
Your public key has been saved in .ssh/id_rsa.pub.
The key fingerprint is:
29:1f:ed:1c:a2:9c:5b:a1:d9:be:71:32:6d:b1:05:fb grid@roidb01
The key's randomart image is:
+--[ RSA 1024]----+
|                 |
|                 |
|          .      |
|         o o     |
|      . S = .    |
|     . O B *     |
|      * B B E    |
|       + *       |
|      . o.       |
+-----------------+
Creating keys on remote host roidb02 if they do not exist already. This is required to setup SSH on host roidb02.
Generating public/private rsa key pair.
Your identification has been saved in .ssh/id_rsa.
Your public key has been saved in .ssh/id_rsa.pub.
The key fingerprint is:
7b:84:f0:b2:f2:89:d9:f3:fb:38:38:65:50:ce:0a:11 grid@roidb02
The key's randomart image is:
+--[ RSA 1024]----+
|    E.           |
|    .   .        |
|     ..+         |
|    . .oo.       |
|     ..oS .      |
|      .ooo       |
|    . .+. .      |
|     *+..o       |
|    o ++++.      |
+-----------------+
Updating authorized_keys file on remote host roidb01
Updating known_hosts file on remote host roidb01
Updating authorized_keys file on remote host roidb02
Updating known_hosts file on remote host roidb02
SSH setup is complete.

------------------------------------------------------------------------
Verifying SSH setup
===================
The script will now run the date command on the remote nodes using ssh
to verify if ssh is setup correctly. IF THE SETUP IS CORRECTLY SETUP,
THERE SHOULD BE NO OUTPUT OTHER THAN THE DATE AND SSH SHOULD NOT ASK FOR
PASSWORDS. If you see any output other than date or are prompted for the
password, ssh is not setup correctly and you will need to resolve the
issue and set up ssh again.
The possible causes for failure could be:
1. The server settings in /etc/ssh/sshd_config file do not allow ssh
for user grid.
2. The server may have disabled public key based authentication.
3. The client public key on the server may be outdated.
4. ~grid or ~grid/.ssh on the remote host may not be owned by grid.
5. User may not have passed -shared option for shared remote users or
may be passing the -shared option for non-shared remote users.
6. If there is output in addition to the date, but no password is asked,
it may be a security alert shown as part of company policy. Append the
additional text to the <OMS HOME>/sysman/prov/resources/ignoreMessages.txt file.
------------------------------------------------------------------------
--roidb01:--
Running /usr/bin/ssh -x -l grid roidb01 date to verify SSH connectivity has been setup from local host to roidb01.
IF YOU SEE ANY OTHER OUTPUT BESIDES THE OUTPUT OF THE DATE COMMAND OR IF YOU ARE PROMPTED FOR A PASSWORD HERE, IT MEANS SSH SETUP HAS NOT BEEN SUCCESSFUL. Please note that being prompted for a passphrase may be OK but being prompted for a password is ERROR.
Thu Sep 14 08:03:37 CST 2017
------------------------------------------------------------------------
--roidb02:--
Running /usr/bin/ssh -x -l grid roidb02 date to verify SSH connectivity has been setup from local host to roidb02.
IF YOU SEE ANY OTHER OUTPUT BESIDES THE OUTPUT OF THE DATE COMMAND OR IF YOU ARE PROMPTED FOR A PASSWORD HERE, IT MEANS SSH SETUP HAS NOT BEEN SUCCESSFUL. Please note that being prompted for a passphrase may be OK but being prompted for a password is ERROR.
Thu Sep 14 08:03:37 CST 2017
------------------------------------------------------------------------
------------------------------------------------------------------------
Verifying SSH connectivity has been setup from roidb01 to roidb01
IF YOU SEE ANY OTHER OUTPUT BESIDES THE OUTPUT OF THE DATE COMMAND OR IF YOU ARE PROMPTED FOR A PASSWORD HERE, IT MEANS SSH SETUP HAS NOT BEEN SUCCESSFUL.
Thu Sep 14 08:03:38 CST 2017
------------------------------------------------------------------------
------------------------------------------------------------------------
Verifying SSH connectivity has been setup from roidb01 to roidb02
IF YOU SEE ANY OTHER OUTPUT BESIDES THE OUTPUT OF THE DATE COMMAND OR IF YOU ARE PROMPTED FOR A PASSWORD HERE, IT MEANS SSH SETUP HAS NOT BEEN SUCCESSFUL.
Thu Sep 14 08:03:38 CST 2017
------------------------------------------------------------------------
-Verification from complete-
SSH verification complete.
<roidb01:orcl:/soft/grid>$ssh roidb02 date
oracle@roidb02's password: 
Permission denied, please try again.
oracle@roidb02's password: 
Permission denied, please try again.
oracle@roidb02's password: 
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).

4.测试验证

<roidb01:orcl:/soft/grid>$ssh roidb02 
oracle@roidb02's password: 

<roidb01:orcl:/soft/grid>$whoami
oracle
<roidb01:orcl:/soft/grid>$exit
logout
[root@roidb01 ~]# su - grid
Last login: Thu Sep 14 07:58:16 CST 2017
<roidb01:+ASM:/home/grid>$ssh roidb02 date
Thu Sep 14 08:05:01 CST 2017
<roidb01:+ASM:/home/grid>$

<roidb02:+ASM:/home/grid>$ssh roidb01 date
Thu Sep 14 08:09:57 CST 2017
<roidb02:+ASM:/home/grid>$

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