Kbase P72061: How to set up Nameserver Replication
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
11/9/2010 |
|
Status: Verified
GOAL:
How to set up Nameserver Replication
GOAL:
How to configure NameServer replication
GOAL:
How to use NameServer replication
FACT(s) (Environment):
All Supported Operating Systems
Progress/OpenEdge Product Family
FIX:
To configure and use NameServer replication, follow these steps:
1. Install the NameServer on each host within a single subnet where you want to replicate a NameServer configuration.
2. Configure each replicated NameServer to listen on the same UDP port number.
3. Determine the UDP broadcast address for the subnet where the NameServer hosts reside. For more information, see the "Determining the Broadcast Address" section.
4. Configure each Unified Broker instance (AppServer, SonicMQ Adapter Broker, WebSpeed Transaction Server, or DataServer) to use a controlling NameServer as follows:
Location -- Remote
Host name -- The UDP broadcast address that you determined from Step 3
Port number -- The UDP port number that you specified in Step 2
5. Provide connection parameters to the client (AppServer, DataServer, or WebSpeed) that specify the required Application Service name, the broadcast address from Step 3, and the UDP port number that you specified in Step 2.
Determining the Broadcast Address
You can determine the broadcast address of a UNIX machine by using the netstat and ifconfig commands, as in this example:
$ netstat -i
Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue
lo0 8232 loopback localhost 771334 0 771334 0 0 0
le0 1500 bali bali 15069970 286170 10019158 1 302211 0
$ ifconfig le0
le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 172.20.0.7 netmask ffff0000 broadcast 172.20.255.255
This example shows that the IP address for bali is 172.20.0.7, and its broadcast address is 172.20.255.255.
On Windows, you can determine the broadcast address following these steps:
Enter the ipconfig command in the console, as shown in this example:
C:\>ipconfig
Windows NT IP Configuration
Ethernet adapter CE2XPS1:
IP Address. . . . . . . . . : 172.18.103.44
Subnet Mask . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . : 172.18.0.19
For each bit in the Subnet Mask that has a value of 0, convert the corresponding bit in the IP Address to 1.
Note that the IP Address and Subnet Mask are composed of four dot-separated decimal numbers and each decimal number represents an 8-bit binary number. Also note that the decimal number 255 is 11111111 in binary.
In this example, the last two decimal digits of the Subnet Mask are zeros. Since the corresponding bits in the IP Address must be converted to 1, the last two decimal numbers of the IP Address should be 255. Therefore the broadcast address is 172.18.255.255. (For more information on determining broadcast addresses, consult with you network administrator.)