01-20-2018
Hi,
Port 514 is the port for the syslog service, as you seem to have already determined. However, in those instances where a local logging service is configured to listen for incoming connections on port 514 it almost always uses UDP rather than TCP, so you can't test this by attempting to telnet to the port.
Exactly how you'd configure this all to work depends on your exact version of UNIX/your Linux distribution, what software you're using for logging, and of course if there is some external firewall that could be in the way even if your own local firewall definitely is not. But the best way to test it is to try to generate a logged event on a remote system that you have configured to log to your syslog server, and see if something gets logged or not.
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LEARN ABOUT PHP
maxdb_ping
MAXDB_PING(3) 1 MAXDB_PING(3)
maxdb_ping - Pings a server connection, or tries to reconnect if the connection has gone down
Procedural style
SYNOPSIS
bool maxdb_ping (resource $link)
DESCRIPTION
Object oriented style
bool maxdb::ping (void )
Checks whether the connection to the server is working. If it has gone down, and global option maxdb.reconnect is enabled an automatic
reconnection is attempted.
This function can be used by clients that remain idle for a long while, to check whether the server has closed the connection and recon-
nect if necessary.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Object oriented style
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
/* check if server is alive */
if ($maxdb->ping()) {
printf ("Our connection is ok!
");
} else {
printf ("Error: %s
", $maxdb->error);
}
/* close connection */
$maxdb->close();
?>
Example #2
Procedural style
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
/* check if server is alive */
if (maxdb_ping($link)) {
printf ("Our connection is ok!
");
} else {
printf ("Error: %s
", maxdb_error($link));
}
/* close connection */
maxdb_close($link);
?>
The above example will output something similar to:
Our connection is ok!
PHP Documentation Group MAXDB_PING(3)