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PostgreSQL, by default, only allows local connections. If you would like to open access to network clients or if you are installing the Client Tools on a separate server (installation type 2), modify the following configuration files need to be modified:


Code Block
listen_addresses = '*'    # Allow remote connections on any network interface.
                          # You can also specify an individual IP address or
                          # comma-separated list of IP addresses.


For more detailed information, please see


As an example, assume 2 sets of clients need access to the alexandria database, a data operations team and the CLAIMS Direct Client Tools. The data operations team will need access from any IP address on the 192.168.111.x network and the client tools Client Tools will be updating the database from The following entries would be are required for access:

Code Block
# HOST    DATABASE   USER       ADDRESS               METHOD
# dataops needs access to the entire cluster, hence DATABASE is all
host      all        all      trust

# CLAIMS Direct Client Tools only need access to the alexandria database
# and by-default, use a fixed user: alexandria
host      alexandria alexandria            trust

For a detailed explanation of the host-based access file, please see