I have a WordPress website, which is not done by me, all I need to do is connect to its database remotely and query some results from its database. The point is that I don't know anything about WordPress, and I saw that the database information are written inside the wp-config.php file, when I opened it, there was the username and password, but the host name was this:
define('DB_HOST', 'localhost');
Which seems a bit curious to me. The website uses cPanel X from GoDaddy, and when I logged in there and opened phpMyAdmin, it had these information under database server part:
Server: Localhost via UNIX socket
So, I really don't know how to remotely connect to the database and query things, because host name says localhost. I'm used to ASP.NET MVC, and where I specify the host name to be the actual server ip or hostname of the database server. Any idea how should I proceed?
This is probably a better question for superuser as it's technically a hosting related question. That being said, you would need to contact GoDaddy and find out if they even allow remote MySQL connections on their servers. Most hosting companies disable external connections to the MySQL server on port 3306, but if you portscan your domain name/IP and see 3306 open then you can probably remote connect to it. Just use the domain name/IP of your site as the host, and pull the user/pass/db name from the config file.
You can do this by using command line.
GRANT ALL ON wpdb.* TO wpuser#`192.168.2.25` IDENTIFIED BY `Pa55w0rd!`;
Check here for a detailed tutorial.
Related
I'm doing this for a couple of years now but I haven't faced anything like this. I'm renting a webserver which has MySQL storage. For security reasons the hosting company refused to give me a host name to connect to the MySQL server from a php script. The reason was that there is an IP filter on he server and one can only connect to it with a whitelisted ip. Is there any solution for this situation like a server sided proxy? Also I do have access to the MySQL server via phpMyadmin.
I did some research and I've found that Navicat has proxy support. Altough it's not free.
Based on your description, it sounds like you have a server with MySQL, PHP and phpMyAdmin all running on the same server. If that's the case then typically the hostname for MySQL will be "localhost", possibly with a port or other code added. It is quite common for web hosting companies to not allow remote MySQL access, though the good ones will have it off by default and let you turn it on either for specific IPs (best) or for "everywhere".
When you are logged into phpMyAdmin, take a look at the very top of the main window and you should see something like Server: localhost or Server: www.example.com:3306 - that is your hostname for any MySQL access, provided the PHP code is running on the same server as phpMyAdmin.
If you actually need to run a program on a different server and access that MySQL database then you are probably out of luck.
I've stored a web project (PHP, HTML and CSS). I'm working inside opt/lampp/htdocs XAMPP directory, so I can run the .php files using the web browser. One of those .php files tries to connect to an external server MySQL database, but, when run:
mysqli_connect($servername, $username, $userpassword);
it displays the following warning.
*mysqli_connect(): (HY000/2002): Connection refused*
I've tried to access the database with phpmyadmin and the corresponding credentials and it works fine.
So the question is: can I perform a msqli_connect to that external database using XAMPP or I should give up?
Thanks in advance!
Since I cannot comment because of my low points, I am answering here.
I had faced similar issues before, so sharing my experience. All of the comments have suggested valuable points. These are as follows:
Use IP address instead of server name (There may be some DNS cache issue, so it is safe to use IP address).
Make sure the IP address you are using is not being blocked by the server's firewall. If possible configure server's firewall to white-list your IP Address.
The default MySQL port is 3306. Make sure the firewall is configured for allowing outside connection to the port 3306.
Most importantly, make sure the MySQL server must be configured to accept connections externally. If all of the above settings are configured properly then you should grant external access and all privilege to your MySQL User.
GRANT ALL PRIVILEGES ON 'yourDatabase'.* TO 'yourUserName'#'%';
FLUSH PRIVILEGES;
Reference - Another SO Question.
How can I connect my localhost PHP files to my remote server MYSQL database?
For example: if we download WordPress, and it gives us an option to login, so that our login credentials are saved with WordPress but still our localhost files connects to that database.
How do I do that?
Thanks.
If you want your PHP code to connect to a remote MySQL database, you just have to specify that remote host when calling the function that connects to MySQL.
For example, when calling mysql_connect(), don't specify localhost as first parameter -- but your real remote host.
Same with mysqli::__construct() or PDO, of course.
A couple of notes :
Your remote host must accept connections to MySQL (think about the firewall)
Your remote MySQL database server must accept connections from non-localhost
Sending queries, and fetching results, to/from a far away server will be a lot slower than doing so on localhost !
mysql_connect(SQL_IP, SQL_NAME, SQL_PASS);
Well when you install Wordpress set the host to be the IP of your remote server. If this isn't what you're looking for, please reword your question. If you're not using word press, check ou the PHP documentation for mysql_connect. The first parameter is the host. Enter the IP or hostname of your remote server here. And then follow that with your username and password.
mysql_connect('remote-host', 'myuser', 'mypassword');
Note: Some hosts do not allow remote connections to MySQL. Check your remote server doesn't have 3306 firewalled or only instructed MySQL to bind it to 127.0.0.1.
How can I connect from one website to database of another website in php.
The other website will require their port to be open for yours to connect to. They will also need the database user to allow connections that are not just from the local machine.
If you have a fairly standard LAMP set-up, this will mean opening port 3306 on the database server so outside connections can be made, and a database user setting up that will be able to connect from the outside world.
Bear in mind their may be latency issues.
You add the connection details in config.php or where you store them, and another-website.com or the IP to the host url (You probably have localhost there), then the username and the password.
I have set up my wordpress site on my local machine and I would like it to talk to the live mysql database on the server. I accessed the wp-config.php file on my machine and changed the hostname to use the ip address instead of localhost, but it will not work.
What do I need to do?
It could be that your remote database is configured to accept connections only from localhost for security reasons. Most web providers set it up that way. In that case, you have no chance of making this work.
Anyway, even if you would get it to work, you will encounter two problems: It will be awfully slow, and the HTML served by the remote database will contain references to server URLs (as opposed to local ones).
If you need more detailed information, you will need to post any error messages you get from mySQL.
Alternatively, you can try running the mysql command-line utility to connect.
mysql -u username -h server -p wordpress_database
Make sure that works first before attempting to get Wordpress to connect.
My guess is you won't be able to connect due to firewall issues. MySql uses port 3306 by default, so if the server's firewall doesn't allow connections through that port, you'll either have to change the port mysql is using (probably a bad idea if other apps expect to see MySql on that port) or get that port opened on the server (make sure you only open it for local IPs, so someone else can't get to your MySql instance!)