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Status Under review
Workspace Db2
Created by Guest
Created on May 13, 2022

Add JDBC Property "localBindAddress"

Remote Connections to a DB should only be allowed from specific source IPs.

However, we do have multiple network interfaces in our UNIX environments (AIX, Linux).

With MySQL and PostgreSQL, we can use the property localSocketAddress [1] [2] to chose the correct outgoing network interface.

Either by specifying a matching hostname or the IP of the interface.

This is needed to minimize the firewall rules and to only allow some applications access to that particular DB.

Otherwise, we would allow all processes access to the DB2 instance, as we currently need to use the default route's interface.

Similar issues for reference: [3] (pgsql request) and [4] (implementation/PR).

We consider this urgent to high, as this highly and directly affects security and is common among other drivers already (see provided links).

[1]: https://dev.mysql.com/doc/connectors/en/connector-j-connp-props-networking.html#cj-conn-prop_localSocketAddress

[2]: https://github.com/pgjdbc/pgjdbc#connection-properties

[3]: https://github.com/pgjdbc/pgjdbc/issues/2081

[4]: https://github.com/pgjdbc/pgjdbc/pull/2082

Needed By Quarter
  • Guest
    May 13, 2022

    In addition to the aspect of multiple interfaces, a bind to an address will more easy to handle if an application will moved to an backup system. The used incomming and outgoing interface remains the same.