in my application i uploaded sqlite database on the server.
problem is that i have no knowledge how to access the database from the server in my application.
Please tell me anyone how i access database from the server.
Since SQLite is a flat file database, there's no way to access it via server (because it doesn't have one duhhh).
Best approach would be either by downloading the database into your sandbox and opening it from there. Or create a simple API to manipulate the database via PHP for example.
Related
I'm currently trying to integrate an existing Blazor Server (ASP.NET Core 6.0, server-side only) application with my company's Keycloak authentication services. I need to use the existing .NET Authentication/Authorization libraries with the Keycloak - the Keycloak will hold all the relevant User data I need to access (e.g. ID, name, passwords, etc.) and use that data as query parameters to access the data stored in PostgreSQL. I've seen that this is possible with Microsoft SQL Server, so I'm wondering if the following is even possible:
Using something other than Microsoft SQL Server or SQLite to handle Authentication with .NET
Using a remote server database to handle Authentication instead of a local .db migration
Accessing Keycloak data for authentication instead of data stored in said local .db migration
If all of this is possible on Blazor Server instead of WebAssembly
There's tons of documentation on how to use SQL Server in a WebAssembly for authentication, but what little documentation exists for Blazor Server, and Keycloak, is for older .NET versions (usually 2.0) and very, very basic use cases. There's also questions already asked but haven't been answered. I'm still very new to Web development and Blazor, so if this isn't even possible, I wouldn't be surprised.
I am have AWS EC2 Server with my App Backend and Database there.
My new developer needs to upload few things in the Database and update Backend code but I don't want to give him the PEM.
He needs to SSH
Whats the best possible way to do it? I was thinking of creating an IAM User for him - but I only want him to give SSH Access, so permission would that be? I could only find a general full permission EC2 which would also give him permission to edit the Security Group and things like that.
I do trust him well, but I just don't want to give him full access in general.
What can I do?
Why not allow your developer to connect using session manager.
If you use this he can access the environment either in his browser or via the AWS CLI.
He should be able to mimic a regular session but without having the key, then when he's done you remove the permissions of the server. You can also enable logging to check the history of his sessions actions.
If you want to update code you should at some point take a look at using code deploy to have the code automatically rolled out without even accessing the server.
I am interested in barring pgAdmin access to my PostgreSQL server from any station other than the server. Is is possible to do this using pg_hba.conf? The PostgreSQL server should still allow access to the server for my application from other stations.
No, this isn't possible. Nor is it sensible, since the client (mode of access) isn't the issue, but what you do on the connection.
If the user managed to trick your app into running arbitrary SQL via SQL injection or whatever, you'd be back in the same position.
Instead, set your application up to use a restricted user role that:
is not a superuser
does not own the tables it uses
has only the minimum permissions GRANTed to it that it needs
and preferably also add guards such as triggers to preserve data consistency within the DB. This will help mitigate the damage that can be done if someone extracts database credentials from the app and uses them directly via a SQL client.
You can also make it harder for someone with your app's binary etc to extract the credentials and use them to connect to postgres directly by:
using md5 authentication
if you use a single db role shared between all users, either (a) don't do that or (b) store a well-obfuscated copy of the db password somewhere non-obvious in the configuration, preferably encrypted against the user's local credentials
using sslmode=verify-full and a server certificate
embedding a client certificate in your app and requiring that it be presented in order for the connection to be permitted by the server (see client certificates
Really, though, if you can't trust your uses not to be actively malicious and run DELETE FROM customer; etc ... you'll need middleware to guard the SQL connection and apply further limits. Rate-limit access, disallow bulk updates, etc etc.
I have migrated files from Parse.com to my hosted parse server using "https://github.com/parse-server-modules/parse-files-utils" tool by applying "Option-2".
Now My problem is when I click on the image in my hosted parse server dashboard, it will show me message "File not found." and my url is like,
http://ip of my server:1337/parse/files/OE9gP1wrd2OT9avp3RBmt8zysmM25wRTMtDOxsfe/tfss-6ca44378-72fb-4ddf-aef2-11af0485b11b-profile-pic
If I upload new image from mobile aap, its working fine.
I have installed mongodb and migrated parse.com data to newly created database in mongodb.
I am not using any FileAdapter in my new created parse server.
Thanks in advance, kindly please look into this issue and help me that how can I display migrated images in our hosted parse server.
What is the http error you are seeing (404?) Are you sure the error is "file not found"? Maybe your server folder permission is set not set to public, so you can't publicly access the files (should be a 403 error).
You usually store the image files to a container (storage) that can be accessed via APIs like Amazon (AWS) or Microsoft Azure. It's usually more efficient to keep you local server file storage small and have fast access speeds to your images.
You can find out how to setup an Amazon S3 bucket or Google Cloud Storage here.
You can find out how to setup an Azure Storage here and connect it to your parse-server using this adapter.
I'm not sure about AWS, but Google and Azure gives you free credits if you sign up, and (at least for Azure) the storage aren't too expensive, so the free credits can last you a while...
Is there a way to get the server info of my VSO account and access using SQL Server?
I've tried logging in using the URL
{account}.visualstudio.com
But I got a sever not found error
No, the back-end databases are SQL Azure instances, different from the TFS on-premise databases. I cannot see MS ever giving you access to the database - maybe the data, but not the database.
You can only use the API (old and new REST) and Power BI tools to perform queries.
If you have a specific problem you are trying to solve, post it as a new question because it may be possible without database access.