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Full Discussion: DNS Server with IPv6 support
Special Forums IP Networking DNS Server with IPv6 support Post 302123704 by porter on Tuesday 26th of June 2007 07:56:01 PM
Old 06-26-2007
Different platforms have different solutions on implementing both IPv4 and IPv6 simultaneously, and this affects how servers listen.

There is the parallel stack and the unified stack approach.

With the parallel stack approach, IPv4 and IPv6 are totally independent stacks and port 53 TCP/IPv4 is different to port 53 TPC/IPv6. A server has to bind and listen on both these ports.

With the unified stack approach the following happens:

If you create an IPv4 socket, it only works on IPv4, end of story.

If you create an IPv6 socket, it will work with both IPv4 and IPv6 clients.

Then there are platforms which require you to create both an IPv4 and an IPv6 socket, but the ports are common, hence you have to set the SO_REUSEADDR flag in order to bind both IPv4 and IPv6 to the same port.

The address "loopback" will resolve typically to 127.0.0.1 which is the IPv4 loopback address. As you point out "::1" is the loopback for IPv6.
 

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asadmin-ping-connection-pool(1AS)				   User Commands				 asadmin-ping-connection-pool(1AS)

NAME
asadmin-ping-connection-pool, ping-connection-pool - tests that a connection pool is usable SYNOPSIS
ping-connection-pool --user admin_user [--password admin_password] [--host localhost] [--port 4848] [--secure|-s] [--passwordfile filename] [--terse=false] [--echo=false] [--interactive=true] pool_name Tests that a connection pool is usable for both JDBC connection pools and connector connection pools. For example, if you create a new JDBC connection pool for use with an application that is expected to be deployed, before deploying the application, the previously created pool is tested with this command. This command is supported in remote mode only. OPTIONS
--user authorized domain application server administrative username. --password password to administer the domain application server. --host machine name where the domain application server is running. --port port number of the domain application server listening for administration requests. --secure if true, uses SSL/TLS to communicate with the domain application server. --passwordfile file containing the domain application server password. --terse indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well- formatted data for consumption by a script. Default is false. --echo setting to true will echo the command line statement on the standard output. Default is false. --interactive if set to true (default), only the required password options are prompted. OPERANDS
poolname name of the connection pool to be tested. Example 1: Using ping-connection-pool Before you can ping a connection pool, you must: o Create a connection pool with authentication. o Make sure the Enterprise Information Server (can be the database) is started. asadmin> ping-connection-pool --user admin1 --password adminadmin1 --host pigeon --port 5001 sampleConnectionPool Command ping-connection-pool executed successfully EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-create-connector-connection-pool(1AS), asadmin-delete-connector-connection-pool(1AS), asadmin-list-connector-connection-pool(1AS), asadmin-create-jdbc-connection-pool(1AS), asadmin-delete--jdbc-connection-pool(1AS)asadmin- list--jdbc-connection-pools(1AS) J2EE 1.4 SDK March 2004 asadmin-ping-connection-pool(1AS)
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