So, I basically made a Windows Application using Visual Studio 2019, and used MySQL as my database to store records.
Now I want to publish that application and send it to a client or try to run it on a different machine, but i think since i have used the localhost as my database connection it wont be able to read or write data on my database from another machine.
So basically I want to know how can i host my mysql database on a machine and access that database from another machine using an application.
I am unable to find any sort of guide to do it online, if someone can guide me or give me a referrence from where I can get information and solve my issue.
You can expose your localhost to be accessed remotely, However, this is not ideal or advised. I will suggest you host your database on one of the virtual or cloud services and access it in your application.
Examples of services like https://remotemysql.com/ https://www.db4free.net/ which I advice you use for testing purpose only. You can create your database and they will give you the connection parameters to fill your connection string.
Let me know if is helpful.
Related
I am just starting to use Electron and I have a question about databases. Due to the kind of App I am developing I need a relational DB.
The idea is the user will open the App, if there is connection it would store the data both locally and remotely. If the App is offline it will store the data locally and whenever is online again it will send that data to the remote server. Basically it will be thee same database (local and remote) but it can work offline if necessary.
I am lost on which database will be better for this. As I said I am using MySQL right now and I know you can use MySQL with nodejs so I might give it a try. Also, I am used to use MySQL within a backend language such as PHP, how would you do it in Electron?
Thanks for your time guys!
I have started using Google's Data Studio I found it very easy to turn the Excel data into Intuitive Business Dashboards with little or no coding skills.
But I have a problem here, whenever I try to connect to Mysql DB (running on my local system) I'm facing error.
Connection Details:
Error Message:
I tried googling the Error Code but No luck.
But I'm able to access the local Mysql Server from Mysql Workbench.
What is that I am missing here? Data Studio Heros?
Thanks in advance.
Simple answer: To expose a localhost service to the web, you have to use ngrok.
For your MySQL the command is:
ngrok tcp 3306
Then the hostname you have to use data studio will be displayed.
Google Data Studio operates on the Web, thus does not have access to your personal local network. However,
You may make you MySQL db Engine accessible to the web by changing the bind-address parameter (See on MySQL Workbench, Instance > Option File > Networking > General > bind-address) to 0.0.0.0.
You also need to create a new user allowed to connect from Hosts Matching %, since Google Data Studio servers are using a dozen of different IP addresses (https://support.google.com/datastudio/answer/7088031?hl=en)
Please refer to this question:
How to make mySQL database at my local accessible from different machines?
Please note that this is a bad practice to open an access to your personal computer and you may instead want to use a MySQL or MariaDB cloud service such as https://console.cloud.google.com/launcher/details/bitnami-launchpad/mariadb
You cannot put host address as localhost.
1) You will need to check your device address at whatismyip.com or something like that.
2) Second thing you need to check is if your device is under firewall or not.
You can refer below URL for more information
http://qsok.com/x/KIBr
As Will mentioned above, it's best practise to use cloud service such as Google Cloud itself to host your MySql database and then take the connection there.
When you connect your database to Data Studio you need to open firewall for all the IP addresses it uses. You can find the whole list of IPs on the bottom of this support article https://support.google.com/datastudio/answer/7088031?hl=en
If your database is behind a firewall, you will need to open access to
the all of the following IP addresses. These are used by Data Studio
to connect to and query your MySql database.
I am developing a desktop app and I want to store data in hosted database like MySQL/MongoDB. I know one solution is using webservice to manipulate db. I am wondering is there a way to connect desktop app with hosted db directly.
I am using OpenShift I know I can use port-forward to do this. But it's unpractical to open port forward every time for every PC. So is a way simply like this:
mongoose.connect('mongodb://user:pass#host:port/db');
I tried this but I got 'connect refused' or 'connect not found' errors. OpenShift doesn't allow external access to database directly because security issues, right? Then how could I do it without port-forward?
Also I read some articles about SSH, is it possible to use SSH to access db directly when desktop app is launched?
Thanks for any suggestion.
I don't think OpenShift is going to be a good fit for what you are trying to do, unless you decide to build a service layer between your desktop app and the database. It sounds like you are looking for a Database As A Service. You mentioned both MongoDB and MySQL. MongoLab is a good MongoDB DBaaS option. For other databases like MySQL, PostgreSQL and several others you could look at Amazon RDS.
I developed a project in VB.NET
In this project I want to use data from MySQL that is resides in my WEB Server.
I can communicate with the MySQL server of my localhost but can not communicate with the WEB Server.
In my CPanel I added Host from the Remote Database Access
But I can't communicate with WEB MySQL Server.
Please help me.
The first step is to try to connect to the web mysql with MySql Query Browser - that will tell you if the database is open for remote connections ( I assume it would fail)
I guess you have already checked it, but make sure you use the correct ip
EDIT:
As Björn said, your vb code is ok, so the problem is with the connection to the db.
Unfortunately that would be caused by many many reasons.
Are you sure you use a real IP from the host (and use it in the mysql settings)?
Are you sure you entered the correct remote host in the mysql settigns?
Are you sure you have correct connection string in the vb code?
Since your post indicates you can access the DB on your localhost, it doesn't seem to be an issue with the way you're connecting to the DB from your application (.NET-Connector?).
What does the external MySQL-Server say? Access denied? Or can't you reach it from the pc where your application is hosted (aka maybe a firewall regulation, other network etc.)?
Can anyone help me understanding what can I do if I want to ship a MYSQL database along with a web based software I have. I am using a free version of MYSQL 5.1. All I want is the client should not able able to get the access to my database/tables, but my application should be able to access database when installed on the client machine.
Thanking you in advance,
you can run the database on the client machine or host it yourself, depending on the circumstances, but if you have a php application or something then the client could just take the connection details out of it, so it doesnt matter, he can access the database anyways.
If its not like that, you can do it as you like, if you can have you own database username and password. The local hosting might be somewhat faster and more secure.