• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 338
  • Last Modified:

How to connect to a remote mysql server using C#?

I have a C# Application which would access a MySQL server using WAMP on another computer. I am trying to do it via IP. Here is my Connection String :
server = "192.168.10.221";
database = "restaurantdb";
uid = "root";
password = "";
string connectionString;
connectionString = "SERVER=" + server + "; PORT = 3306 ;" + "DATABASE=" + database + ";" + "UID=" + uid + ";" + "PASSWORD=" + password + ";";
mycon = new MySqlConnection(connectionString);

Open in new window


I have another computer in which we are in the same network, but when I try to connect to the Mysql I am not able to connect but locally it works...
What do you think ?

What I have tried:

I published my C# application and then launch it in the other computer so that I will try to connect to mysql but nothing works. But I have to mention that when I put the ip adress in the other computer I can have access to wampserver and phpmyadmin ...
0
SniperCode Sheva
Asked:
SniperCode Sheva
  • 3
  • 3
  • 3
1 Solution
 
Tomas Helgi JohannssonCommented:
Hi!

If you have access to mysql locally and as root/superuser then do a select on mysql.user table like this.

select user,host from mysql.users where user = 'your_username';

Open in new window


To be able to access mysql from a host with your_username you should see a record with the host/ipaddress and the user.

If not you would need to grant access to the database for that user on that host. Note that yourusername with host % means that you can access mysql from any host.

Granting access to a user
GRANT ALL PRIVILEGES ON *.* TO 'your_username'@'your_hosts_ipaddress'

Open in new window


http://dev.mysql.com/doc/refman/5.7/en/account-management-sql.html

Regards,
    Tomas Helgi
0
 
Dave BaldwinFixer of ProblemsCommented:
On the computer that runs the C# program, you must have either the MySQL ODBC connector or the MySQL .NET connector.  These are basically drivers that can connect from your program to the MySQL server.  https://www.mysql.com/products/connector/

On the MySQL server, you must have a user that is allowed to connect remotely.  MySQL users are setup with username, password, and host that they are allowed to connect from.  That's shown above in Tomas's post.
0
 
SniperCode ShevaAuthor Commented:
When I try to connect I got this error : MySql.Data.MySqlClient.MySqlException (0x80004005): Unable to connect to any of the specified MySQL hosts.
I did what Thomas told me but nothing I got the same error...
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
Tomas Helgi JohannssonCommented:
Hi!

Check and make sure that no firewall is blocking the 3306 port.

Regards,
    Tomas Helgi
0
 
Dave BaldwinFixer of ProblemsCommented:
I suggest you install MySQL Workbench and use it to establish the correct connection info.  Then you can use that in your program.  http://www.mysql.com/products/workbench/
0
 
SniperCode ShevaAuthor Commented:
I install WorkBench in the server right ? or on the remote ?
0
 
SniperCode ShevaAuthor Commented:
Thank you it was a firewall problem, the port 3306 was blocked.
0
 
Dave BaldwinFixer of ProblemsCommented:
MySQL Workbench goes on the client where you were having a problem.  You can put it on the server but the privileges are different on the server because it does not require remote access.

Glad you got it fixed.
0
 
Tomas Helgi JohannssonCommented:
Glad to help.
Don't forget to close the question and award points to those that helped solving your problem.  :)

Regards,
    Tomas Helgi
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

  • 3
  • 3
  • 3
Tackle projects and never again get stuck behind a technical roadblock.
Join Now