how to access my lan based postgresql db from my website

We have lan based .Net application with Postgresql 8.1 , now i have task to provide interface on website to read and write two tables on LAN based database I 开发者_StackOverflowdon't know where to start Please help me to solve this problem.

Lan: Windows NT 2003 .Net Postgresql 8.1

Website: PHP 5.3 Mysql

You need to enable remote connections on Postgres. But be wary of security implications.

Haven't read it all, but this should give you an idea on the steps to take on the server. For the connector, you generally just need to point the connect function at the remote IP.

Here is how to do the trick. Copied from here:

 <?php
// Connecting, selecting database
$dbconn = pg_connect("host=localhost dbname=publishing user=www password=foo")
    or die('Could not connect: ' . pg_last_error());

// Performing SQL query
$query = 'SELECT * FROM authors';
$result = pg_query($query) or die('Query failed: ' . pg_last_error());

// Printing results in HTML
echo "<table>\n";
while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
    echo "\t<tr>\n";
    foreach ($line as $col_value) {
        echo "\t\t<td>$col_value</td>\n";
    }
    echo "\t</tr>\n";
}
echo "</table>\n";

// Free resultset
pg_free_result($result);

// Closing connection
pg_close($dbconn);
?>

in the above code, replace localhost by the IP-address of your Postgres host.

On Linux, two files need to be modified to allow connections other than from localhost: postgresql.conf, change the listen_addresses = "*" to accept connections from anywhere. Then add a line to the pg_hba.conf file to allow access to the database from a particular IP or network. If you are not worried about security, entering:

host all all 192.168.1.0/24 trust

will allow anyone on the 192.168.1.0/24 network access to any database. Obviously this should only be used to test you can reach the database. Constrain this to the web servers IP address and use md5 so encrypted password authentication is used.