Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL
In a default setup, I believe the port is 3306. Check your MySQL config files, as this can be changed. Matt - Original Message - From: Louis Feng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 28, 2003 10:34 PM Subject: [PHP-DB] Question on the port PHP uses to connect to remote MySQL Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? I'm NOT talking about 3306 which is used by Mysql. Anyone could help? Thanks in advance. Louis -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL
it IS 3306(in a default setup) that you'll need to allow traffic through the firewall for this scenario. I have similar needs and that is the port we open. Matt Vos vos@techcomne To: Louis Feng [EMAIL PROTECTED], [EMAIL PROTECTED] t.com cc: Subject: Re: [PHP-DB] Question on the port PHP uses to connect to 01/29/2003remote MySQL 09:29 AM In a default setup, I believe the port is 3306. Check your MySQL config files, as this can be changed. Matt - Original Message - From: Louis Feng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 28, 2003 10:34 PM Subject: [PHP-DB] Question on the port PHP uses to connect to remote MySQL Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? I'm NOT talking about 3306 which is used by Mysql. Anyone could help? Thanks in advance. Louis -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL
Thanks for reply, I'm going to try that, but how could this be? I just want to make sure I was clear that there is no problem to connect to the remote MySQL server and there is nothing blocking that machine. It's the PHP machine that's blocking any incoming traffic from the MySQL machine. How could PHP use a port number that is also used by MySQL? Louis [EMAIL PROTECTED] wrote: it IS 3306(in a default setup) that you'll need to allow traffic through the firewall for this scenario. I have similar needs and that is the port we open. Matt Vos vos@techcomne To: Louis Feng [EMAIL PROTECTED], [EMAIL PROTECTED] t.com cc: Subject: Re: [PHP-DB] Question on the port PHP uses to connect to 01/29/2003remote MySQL 09:29 AM In a default setup, I believe the port is 3306. Check your MySQL config files, as this can be changed. Matt - Original Message - From: Louis Feng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 28, 2003 10:34 PM Subject: [PHP-DB] Question on the port PHP uses to connect to remote MySQL Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? I'm NOT talking about 3306 which is used by Mysql. Anyone could help? Thanks in advance. Louis -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL
Hi Jeff, Thanks for your help. The machine [A] is running MySQL is Not behind a firewall, therefore all connection to [A] works fine (including 3306). The machine [B] running PHP/apache is behind a firewall, and only port 80 is open on [B]. If I want to do some query on MySQL of [A] from [B] where PHP resides, then the problem occurs (from other machines without firewall to do the query on [A] work fine). Basically PHP can send out query to [A] (since [A] is open), but when [A] returns the result to PHP, it's blocked by the firewall on [B], because I believe PHP uses certain port for MySQL return the result. Is it clear? I attached a picture and hopefully helps. Thanks! Louis [EMAIL PROTECTED] wrote: loius. how do you know it's the mysql host that can not get to the php host? i may have misunderstood. port 3306 needs to be enabled to allow traffic though the firewall and into the mysql host, since that connection has been established the data is returned back to the php host. the mysql host shouldn't be able to connect to the php host in the same way, only through a connection originating through port 3306. then you can also limit to domain names that are allowed to enter the mysql host on 3306. don't know if this helps, but i think this is your scenario. let me know. i'm definitely interested. Hopefully i explained it correctly, i'm definitely not a firewall guy...but i try to pay attention. Jeff *Louis Feng [EMAIL PROTECTED]* 01/29/2003 07:11 PM To: [EMAIL PROTECTED] cc: Matt Vos [EMAIL PROTECTED], Louis Feng [EMAIL PROTECTED], [EMAIL PROTECTED] bcc: Subject: Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL Thanks for reply, I'm going to try that, but how could this be? I just want to make sure I was clear that there is no problem to connect to the remote MySQL server and there is nothing blocking that machine. It's the PHP machine that's blocking any incoming traffic from the MySQL machine. How could PHP use a port number that is also used by MySQL? Louis [EMAIL PROTECTED] wrote: it IS 3306(in a default setup) that you'll need to allow traffic through the firewall for this scenario. I have similar needs and that is the port we open. Matt Vos vos@techcomne To: Louis Feng [EMAIL PROTECTED], [EMAIL PROTECTED] t.com cc: Subject: Re: [PHP-DB] Question on the port PHP uses to connect to 01/29/2003remote MySQL 09:29 AM In a default setup, I believe the port is 3306. Check your MySQL config files, as this can be changed. Matt - Original Message - From: Louis Feng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 28, 2003 10:34 PM Subject: [PHP-DB] Question on the port PHP uses to connect to remote MySQL Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? I'm NOT talking about 3306 which is used by Mysql. Anyone could help? Thanks in advance. Louis -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DB] Question on the port PHP uses to connect to remote MySQL
Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? I'm NOT talking about 3306 which is used by Mysql. Anyone could help? Thanks in advance. Louis -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Question on the port PHP uses to connect to remote MySQL
On Wednesday 29 January 2003 11:34, Louis Feng wrote: Here is my problem. I have PHP running on one machine, mysql on another one. Everything works fine till I put a firewall on the PHP machine, which blocks pretty much every port there is except port 80. Now, PHP can't connect to the mysql database anymore. If I disable the firewall on the PHP machine it works again. So I eliminate the reasons down to that PHP must uses some port for mysql return the query. The question is which port does PHP use for the connection? Most likely it varies. Your firewall should have stateful inspection so that whatever port was used to initiate the connection with mysql should be allowed through. -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* We're all in this alone. -- Lily Tomlin */ -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
