I'm finding myself unable to connect to a MySQL server on my LAN using PHP, and only using PHP. Here's a breakdown of the situation.
My server is at 192.168.0.999 (well, except the 999 is in the 0-255 range of course). It's an Ubuntu server, where I have MySQL 5.5 running that I installed via apt-get.
I am using PHP 4 (no, unfortunately I cannot switch to 5 at this point) on Windows 7
I am connecting using mysql_connect() (and again, no switching to another API is not an option at this point). mysql_error() says: Can't connect to MySQL server on '192.168.0.999' (10061)
I can telnet to 192.168.0.999 port 3306 and although PuTTY gives me an error about packet order, there's quite clearly a MySQL server listening on that port.
I can connect by starting cmd and typing mysql -h192.168.0.999 -uusername -p, (of course my username is not actually 'username') and after I type the password I can run queries.
I've triple-checked the credentials in my PHP script for typos, so I am now quite completely stumped. I understand that error 10061 is a network error and that either MySQL or the box it runs on, is refusing my connection, but I cannot reconcile this with the fact that I can telnet to the very same host, and can connect easily with the standard mysql client on my machine.
Before anyone brings it up, AFAICT I've followed the troubleshooting steps in the MySQL manual to a T and the PHP manual does not seem very helpful. Copying the database to my local machine is very logical, and very desirable, but also very impractical.
Can anyone help me?
You've stated that you are running this on windows, and that you can access MySQL through command line but not PHP.
This sounds like permissions problems - are your table InnoDB by any chance?
If so, check the permissions on the InnoDB database files.
As it turns out, I was connecting to the right host, but to the wrong port. For reasons that are not really relevant to the question, my MySQL instance runs on port 3307 instead of 3306, so I've set mysql.default_port to 3307 in my php.ini file.
Mystery solved: PEBKAC!
Related
I am new to working with servers, and am not able to use SQLYog because it is not able to connect to any server. When I try to use the default values to connect to MySQL (localhost, root, port 3306), I get "Error No. 2003: Can't connect to MySQL server on 'localhost' (0).
Is there something I am missing or that I have to correct? I am just trying to create a database.
SQLyog is just one way to connect to a MySQL database and interact with it. Other popular methods include MySQL Workbench, Navicat, phpMyAdmin, and others.
Before you can use any of these, you have to first make sure your MySQL server is running and accepting connections. You didn't mention (or tag) whether you are running MySQL on your local machine, or what operating system you are using.
A couple of the most common development environments are LAMP or WAMP, for "Linux, Apache, MySQL, php" or "Windows, Apache, MySQL, php" respectively. Since you tagged your question php, I'll assume one of these is appropriate. (For example you're using SQLyog on Windows but your MySQL server is on Linux.) (I'll presume Ubuntu for Linux examples.)
On the machine you've installed MySQL (along with any other components), you should be able to determine its running state by looking at your process list (ps aux in Ubuntu, tasklist or Task Manager (GUI) in Windows).
You're looking for mysqld (Linux) or mysqld.exe (Windows). If the process isn't running, you need to start it (Linux/Windows). If you're using WampServer (a popular Windows all-in-one package), for example, you can also look in your Windows Services for "wampmysqld" or "wampmysqld64" and start the service there.
If you can't get the process to start, you may have a configuration error. If the process is running, you may need to check the configuration any way to determine what port it is running on, if it's not the standard 3306.
The configuration file name and location can vary by system and package, but generally it will be called "my.cnf" (Linux) or "my.ini" (Windows). Check your documentation for help on the specific path.
Once you've got the service running, you should be able to connect!
This is the default SQLyog connection dialog (at least in my slightly older version). The defaults assume you are running your MySQL server on your local machine (localhost), that you have a user "root" with no password, and the default port 3306 is used.
You'll need to change any of this information that differs on your particular installation.
Be aware that if you're trying to connect to an instance of MySQL on another machine, a firewall may be blocking a port.
These steps should hopefully get you on the right track.
I am having issues connecting to MySQL server. I go to localhost:8888/phpMyAdmin/?lang=en and get the error:
"#2003 - Can't connect to MySQL server on '127.0.0.1' (61) the server
is not responding."
I've tried many different solutions however, none have worked. If anyone has any advice or ways to fix this, it would be a great help.
Ensure that MySQL is enabled in MAMP, and that you have also enabled "Allow network access to MySQL" in MAMP's MySQL settings page.
I'd recommend restarting your system, and confirming that mysql daemon start with your mamp server properly. You may also try logging into the command line mysql, and observe the configuration. You seem to suggest that you have tried many things, and I assume that you tried restarting. I know it seems ridiculous to ask you to repeat this... but, you want a clean entry point to observe the issue. There may be another mysql server running as well, or it may not be serving where you think it is. By logging into MySql as root, you should be able to determine some of the mis-configuration issues.
I went to /Applications/MAMP/bin/phpMyAdmin/config.inc.php and updated the line $cfg['Servers'][$i]['host'] = '127.0.0.1';
from 127.0.0.1 to localhost.
I developed a PHP application with MySQL and node.js implementation.
I am trying to connect to my production DB like the following:
mysql_connect('54.212.117.38', 'root', '********');
This is the Error I get :
Could not connect: Can't connect to MySQL server on '54.212.117.38' (4)
I must mention that I can reach the PHPmyAdmin directly through the browser.
Moreover, On local host the application is connecting to MySQL with no problem.
I also tried restarting the Apache server, shutting down the Node.js procedure...
BTW - My production server is running Ubuntu.
Does anyone has an idea on what's the reason that it doesn't work?
There is more than one possibility. Some advice:
Make sure the mysql server behind this IP address is running and accepting connects.
Make sure the user can access from your clients ip.
Check out if perhaps the connection process takes too long (in this case, you can try increasing the connect_timeout).
If nothing else helps, trace the traffic between client and server. Maybe a firewall is slightly too aggressive (I've had that once, user root was triggering an IDS rule...).
A sidenote, the mysql extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should be used.
the problem is the firewall rules.
When you connect via Phpmyadmin, you are connecting through the web interface and internally Phpmyadmin is connecting to localhost.
Check your local ip or the ip of the server that you want to connect from.
Make sure you change the parameter bind-address to:
bind-address = 0.0.0.0 = 0.0.0.0
I have an issue with a mysql database that randomly just go and die obviously. When this occurs and I try to use mysql in the terminal this occurs:
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'
What causes this? If I restart the service it works splendid until the next random occurance when it stops working again. Am all open for ideas.
You are not mentioned your OS, mysql version, XAMPP/WAMPP here. There are some reason for this error.
If OS is windows.
If you have installed XAMPP more than one in various driver of your system, this error may happen
If you installed skype, It may be using mysql default port 3306.
Clear your browser cache and try it.
Issue was memory related. The system killed processes for more essential parts.
While I've been working with MySQL for years, this is the first time I've run across this very newbie-esq issue. Due to a client demand, I must host their website files (PHP) on a IIS server that is not running MySQL (instead, they are running MSSQL). However, I have developed the site using a MySQL database which is located on an external host (Rackspace Cloud). Obviously, my mysql_connect function is now bombing because MySQL is not running on localhost.
Question: Is it even possible to hit an external MySQL database if localhost is not running MySQL?
Apologies for the rookie question, and many thanks in advance.
* To clarify, I know how to connect to a remote MySQL server, but it is the fact that my IIS web server is not running ANY form of MySQL (neither server nor client) that is giving me trouble. Put another way, phpinfo() does not return anything about MySQL. *
Yes, you can use a MySQL database that's not on the same machine as Apache+PHP.
Basically, you'll connect from PHP to MySQL via a network connection -- TCP-based, I suppose ; which means :
MySQL must be configured to listen to, and accept connections on the network interface
Which means configuring MySQL to do that
And given the required privileges to your MySQL user, so he can connect from a remote server
And PHP must be able to connect to the server hosting MySQL.
Note, though, that habing MySQL on a server that's far away might not be great for performances : each SQL query will have to go through the network, and this could take some time...
If phpinfo is not returning anything about MySQL you need to install the MySQL plugin for PHP, easiest way to do that probably is to just upgrade PHP to the latest version. If not there is a .DLL file that you will need.
http://www.php.net/manual/en/mysql.installation.php
you will need to install the mysql extensions. this link should help: http://php.net/manual/en/install.windows.extensions.php
The MySQL server has nothing to do with PHP itself. What "mysql support" in PHP means is that it's been compiled with (or has a module loaded) that implements the MySQL client interface. For windows, it'd be 'mysql.dll', and on Unix-ish systems it'd be 'mysql.so'. Once those are loaded, then the various MySQL intefaces (mysql_xxx(), mysqli_xxx(), PDO, MDB2, etc...) will be able to access any MySQL server anywhere, as long as you have the proper connection string.