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Special Forums IP Networking Help with to check the tcp network connectivity between servers and hosts Post 302904039 by RudiC on Sunday 1st of June 2014 11:43:09 AM
Old 06-01-2014
May depend on your nc version.
Code:
nc -v localhost 2000
Connection to localhost 2000 port [tcp/cisco-sccp] succeeded!
nc -v localhost 2000
nc: connect to localhost port 2000 (tcp) failed: Connection refused

 

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MAXDB_REAL_CONNECT(3)							 1						     MAXDB_REAL_CONNECT(3)

maxdb_real_connect - Opens a connection to a MaxDB server

       Procedural style

SYNOPSIS
bool maxdb_real_connect (resource $link, [string $hostname], [string $username], [string $passwd], [string $dbname], [int $port], [string $socket]) DESCRIPTION
Object oriented style bool maxdb::real_connect ([string $hostname], [string $username], [string $passwd], [string $dbname], [int $port], [string $socket]) maxdb_real_connect(3) attempts to establish a connection to a MaxDB database engine running on $hostname. This function differs from maxdb_connect(3): omaxdb_real_connect(3) needs a valid resource which has to be created by function maxdb_init(3) o With function maxdb_options(3) you can set various options for connection. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Object oriented style <?php /* create a connection object which is not connected */ $maxdb = maxdb_init(); /* set connection options */ $maxdb->options(MAXDB_UNICODE, "FALSE"); $maxdb->options(MAXDB_TIMEOUT, 5); /* connect to server */ $maxdb->real_connect('localhost', 'MONA', 'RED', 'DEMODB'); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } printf ("Connection: %s .", $maxdb->host_info); $maxdb->close(); ?> Example #2 Procedural style <?php /* create a connection object which is not connected */ $link = maxdb_init(); /* set connection options */ maxdb_options($link, MAXDB_UNICODE, "FALSE"); maxdb_options($link, MAXDB_TIMEOUT, 5); /* connect to server */ maxdb_real_connect($link, 'localhost', 'MONA', 'RED', 'DEMODB'); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } printf ("Connection: %s .", maxdb_get_host_info($link)); maxdb_close($link); ?> The above example will output something similar to: Connection: localhost <...> SEE ALSO
maxdb_connect(3), maxdb_init(3), maxdb_options(3), maxdb_ssl_set(3), maxdb_close(3). PHP Documentation Group MAXDB_REAL_CONNECT(3)
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