關於Oracle和MySQL中的無密碼登入

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關於Oracle和MySQL中的無密碼登入

無密碼登入在一定程度上能夠簡化流程,對於密碼敏感,但是又需要提供存取權限的情況下是一個不錯的選擇。尤其是在乙方在做一些操作的時候,要密碼和給密碼是一個糾結的問題。不給沒法工作,給了又對資訊安全又影響。

在Oracle和MySQL中都有相應的解決方案,大道至簡,這個功能的目的都是類似的。

在Oracle中可以通過設定wallet來實現,在10g版本開始支援。而在MySQL中自5.6版本開始可以使用--login-path來實現。

先來看看Oracle中的wallet實現無密碼登入,可以通過mkstore來配置,我們可以使用--help得到命令使用的協助。

[ora11g@oel1 admin]$ mkstore --help
 Oracle Secret Store Tool : Version 11.2.0.1.0 - Production
 Copyright (c) 2004, 2009, Oracle and/or its affiliates. All rights reserved.
 No wallet location specified.
 mkstore [-wrl wrl] [-create] [-createSSO] [-createLSSO] [-createALO] [-delete] [-deleteSSO] [-list] [-createEntry alias secret] [-viewEntry alias] [-modifyEntry alias secret] [-deleteEntry alias] [-createCredential connect_string username password] [-listCredential] [-modifyCredential connect_string username password] [-deleteCredential connect_string] [-help] [-nologo]
我們首先來建立錢包,指定錢包路徑為/u02/ora11g/wallet,對於密碼還是有一定的要求,太簡單也不行。
$ mkstore -wrl /u02/ora11g/wallet -create
 Oracle Secret Store Tool : Version 11.2.0.1.0 - Production
 Copyright (c) 2004, 2009, Oracle and/or its affiliates. All rights reserved.
 Enter password:         
 Enter password again: 
產生錢包後,會在指定的路徑下產生兩個檔案。
$ ll
 total 8
 -rw------- 1 ora11g dba 3589 May 17 21:37 cwallet.sso
 -rw------- 1 ora11g dba 3512 May 17 21:37 ewallet.p12
我們可以指定臨時的串連串來配置到錢包裡面,比如我們認為test11g是一個臨時串連串,可以使用tnsping來測試,確保串連串是可訪問的。
$tnsping test11g
 Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = oel1.oracle.com)(PORT = 1511))) (CONNECT_DATA = (SERVICE_NAME = TEST11G)))
 OK (0 msec)
配置完成之後,我們需要在登入之前在sqlnet.ora中配置錢包的路徑。sqlnet.ora中需要配置的內容如下:
$ cat sqlnet.ora
 WALLET_LOCATION =
  (SOURCE =
    (METHOD = FILE)
    (METHOD_DATA =
      (DIRECTORY = /u02/ora11g/wallet)
    )
  )

SQLNET.WALLET_OVERRIDE=true
這些配置都搞定以後我們就可以指定對應的串連串,對應的使用者名稱密碼。
$ mkstore -wrl /u02/ora11g/wallet -createCredential test11g n1 n1
 Oracle Secret Store Tool : Version 11.2.0.1.0 - Production
 Copyright (c) 2004, 2009, Oracle and/or its affiliates. All rights reserved.
 Enter wallet password:  l      1
Create credential oracle.security.client.connect_string1
配置完成之後工作就完成了,我們可以簡單驗證一下。
$ sqlplus /@test11g
 SQL*Plus: Release 11.2.0.1.0 Production on Sun May 17 21:45:59 2015
 With the Partitioning, OLAP, Data Mining and Real Application Testing options
 n1@TEST11G>

而如果使用MySQL來實現,則需要通過mysql_config_editor來配置。
mysql_config_editor的命令提示如下,可以看出可使用的選項還是相對比較簡單的。
[mysql@oel1 ~]$ mysql_config_editor set --help
 mysql_config_editor Ver 1.0 Distrib 5.6.23, for linux-glibc2.5 on i686
 Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
 Oracle is a registered trademark of Oracle Corporation and/or its
 affiliates. Other names may be trademarks of their respective
 owners.

 MySQL Configuration Utility.
 Description: Write a login path to the login file.
 Usage: mysql_config_editor [program options] [set [command options]]
  -?, --help          Display this help and exit.
  -h, --host=name    Host name to be entered into the login file.
  -G, --login-path=name
                      Name of the login path to use in the login file. (Default
                      : client)
  -p, --password      Prompt for password to be entered into the login file.
  -u, --user=name    User name to be entered into the login file.
  -S, --socket=name  Socket path to be entered into login file.
  -P, --port=name    Port number to be entered into login file.
  -w, --warn          Warn and ask for confirmation if set command attempts to
                      overwrite an existing login path (enabled by default).
                      (Defaults to on; use --skip-warn to disable.)
我們直接可以通過一個命令來完成配置,制定這個無密碼登入的別名為fastlogin

[mysql@oel1 ~]$ mysql_config_editor set --login-path=fastlogin --user=root --host=localhost --password --socket=/u02/mysql/mysqld_mst.sock
 Enter password:
配置完成之後,會在當前路徑下產生一個隱藏檔案.mylogin.cnf
 [mysql@oel1 ~]$ ll -la .mylogin*
 -rw------- 1 mysql dba 480 May 17 22:10 .mylogin.cnf
 [mysql@oel1 ~]$
大功告成,這個時候直接登入即可。
[mysql@oel1 ~]$ mysql --login-path=fastlogin
 Welcome to the MySQL monitor.  Commands end with ; or \g.
 Your MySQL connection id is 3
 Server version: 5.6.23-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)
 Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

 Oracle is a registered trademark of Oracle Corporation and/or its
 affiliates. Other names may be trademarks of their respective
 owners.
 Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 mysql>

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