OV IT/O: 无法在SG环境中通过防火墙分配模板问题描述
我无法在Service Guard环境中通过防火墙分配模板同时安装代理软件时没有任何问题
为什么会出现这个问题如何解决？
配置信息
操作系统 HPUX
版本
硬件系统 HP
应用程序 Oracle
解决方法
你最初的问题是由于rpcd向代理程序报告物理结点的源地址
根据你的防火墙配置的方式在通过防火墙时你不能用MC Service Guard配置IT/O
这个问题可以追溯到这样的事实即UDP是传输协议没有办法锁定无连接协议的源地址
当数据包发送给管理结点时选择目标地址操作系统根据管理服务器中的网络路由表分配源地址由于同一个网络号使用相同的主机号因此使用给定网卡(MC Service Guard)上的第一个地址我们不能改变这个行为
这个问题的解决方法是使用传输控制协议(TCP)进行传输由于TCP是一个基于连接的协议因此会话过程中源地址是统一的如果管理结点在可再定位的地址打开一个会话那么从管理服务器到管理结点的所有流量（在该会话中）将都以这个可再定位的地址作为源地址
你也可以考虑重新配置防火墙接受来自可再定位地址和固定地址的数据包
当前的技术还无法为你马上提供一个解决方法
following with all English text
Problem Description
I cannot distribute templates in a Service Guard environment over the
firewall At the same time I dont have any problems installing the agent software
Why am I having this problem and do you have a solution?
Configuration Info
Operating System HPUX
Version
Hardware System HP
Application Oracle
Solution
Your initial problem is due to rpcd reporting back to the agent with the source address of the physical node
Based upon the way your firewall is configured you cannot configure IT/O with MC Service Guard while passing through a firewall
The problem can be traced to the fact that UDP is the transport protocoland there is no way to lock down the origination address for a connectionless protocol
When a packet is sent to a managed node the destination address is selected and the operating system assigns the source address according to network routing tables in the management server Since two host numbers exist for the same network number the first address on a given
Network Interface Card (MC Service Guard) is used We cant change this behavior
The solution to this problem is to use Tranmission Control Protocol (TCP) as the transport Because TCP is a connectionbased protocol the origination address is consistent for the session If the managed node opens a session to the relocatable address all traffic from the
management server to the managed node (in that session) will have the
relocatable address as the source address
You could also consider reconfiguring the firewalls to allow packets from the relocatable address and the stationary address
With the current technology it is not possible to give you an immediate solution
