network

关于12c Pluggable database注册listener问题

August 9, 2013 12c, network, oracle No comments

演示一下12c中关于pdb的listener register,unregister问题

[oracle@db-42 ~]$ lsnrctl status listener1

LSNRCTL for Linux: Version 12.1.0.1.0 - Production on[......]
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Logon Storm

November 16, 2012 network, oracle No comments

A Logon storm is a sudden spike in the number of client connection requests. Logon storms can occur due to a variety of factors. They could be malic[……]

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11gR2 RAC listener

August 18, 2012 network, oracle No comments

oracle 11gR2 rac listener引入了3项主要的改变：

1. listener默认owner为grid

[oracle@db-42 ~]$ srvctl config listener
Name: LISTENER
Network: 1, Owner: grid[……]

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Problem : Fatal NI Connect Error 12170, ‘TNS-12535: TNS:operation timed out’ Reported in 11g Alert Log

December 1, 2011 network, oracle No comments

Applies to:

Oracle Net Services – Version: 11.1.0.6 to 11.2.0.2 – Release: 11.1 to 11.2
Oracle Server – Enterprise Edition – Version: 11.1.0.6 to[……]

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sqlnet.ora 控制访问IP

October 19, 2011 network, oracle 3 comments

sqlnet.ora中进行下列参数的设置可以限制或允许用户从特定的客户机连接到数据库中

[root@Hong ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0C:29:24:93:F5
inet addr:192.168.1.[……]

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