从Oracle10g开始，Oracle极大的增强了OEM工具，并通过服务器端进行EM工具全面展现。
在10g中，客户端可以不必安装任何Oracle客户端工具，仅凭浏览器就可以调用强大的EM工具。

在Server端，可以通过如下命令启动EM工具控制台:
emctl start dbconsole

以下是启动过程:
[oracle@danaly ~]$ emctl start dbconsole
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 
Copyright (c) 1996, 2005 Oracle Corporation.  All rights reserved.
http://danaly.hurrray.com.cn:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control .......................... started.
------------------------------------------------------------------
Logs are generated in directory /opt/oracle/product/10.2.0/danaly.hurrray.com.cn_danaly/sysman/log

启动之后我们就可以通过在浏览器端输入以下url访问:
http://danaly.hurrray.com.cn:1158/em/

同样停止OEM可以输入如下命令:
emctl stop dbconsole

以下是停止过程:
[oracle@danaly ~]$ emctl stop dbconsole
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 
Copyright (c) 1996, 2005 Oracle Corporation.  All rights reserved.
http://danaly.hurrray.com.cn:1158/em/console/aboutApplication
Stopping Oracle Enterprise Manager 10g Database Control ......  Stopped.

也可以直接键入emctl查看emctl支持的选项:

[oracle@danaly ~]$ emctl
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 
Copyright (c) 1996, 2005 Oracle Corporation.  All rights reserved.
Invalid arguments

Unknown command option
Usage::
   Oracle Enterprise Manager 10g Database Control commands:
       emctl start| stop| status| setpasswd dbconsole
       emctl secure

       emctl set ssl test|off|on em
       emctl set ldap    
emctl blackout options can be listed by typing "emctl blackout"
emctl config options can be listed by typing "emctl config"
emctl secure options can be listed by typing "emctl secure"
emctl ilint  options can be listed by typing "emctl ilint"
emctl deploy  options can be listed by typing "emctl deploy"