I've build a nest.js server and now I'm trying to connect mongoDB Atlas.
In the app.module imports i've tried to connect with
mongodb+srv://<user>:<pass>#cluster0.iijhz.mongodb.net/<dbName>?retryWrites=true&w=majority
url string, but failed, now i've tried these options too:
imports: [
MongooseModule.forRoot(
'mongodb+srv://cluster0.iijhz.mongodb.net',
{
user: '<user>',
pass: '<pass>',
dbName: '<dbName>',
w: 'majority',
retryWrites: true
}
),
but still got
MongoError: Authentication failed.
my ip, and 0.0.0.0/0 is also added to whitelist.
Ok, surely my bad, the dbName wasn't correct the whole time.
The problem that I faced was not whitelisting my IP address. The error was not visible when tried with NestJS but while using it with express I found out the error!
In case you're wondering how to change IP address in MongoDB atlas:
Goto MongoDB atlas dashboard
Select Network Access option under Security
In the IP address tab, clik edit on the first(according to your requirement) IP address.
Click Add Current IP address(for only your current IP, you can't access from other IP) / select "Global IP" or 0.0.0.0/0 for getting
access from anywhere.
It should work now!
Hope that helps!
Related
I'm attempting to connect to a new Aurora PostgreSQL instance with Babelfish enabled.
NOTE: I am able to connect to the instance using the pg library through the normal port 5432 (the Postgres TDAS endpoint).
However, for this test, I am attempting to connect through the Babelfish TDS endpoint (1433) using the standard mssql package.
If I specify a database name (it is correct), I receive the error 'database "postgres" does not exist':
var config = {
server: 'xxx.us-east-1.rds.amazonaws.com',
database: 'postgres',
user: 'xxx',
password: 'xxx'
};
and the connection closes since the connection fails.
if I omit the database property in the config, like:
var config = {
server: 'xxx.us-east-1.rds.amazonaws.com',
user: 'xxx',
password: 'xxx'
};
It will connect. Also, I can use that connection to query basic things like SELECT CURRENT_TIMESTAMP and it works!
However, I can't access any tables.
If I run:
SELECT COUNT(1) FROM PERSON
I receive an error 'relation "person" does not exist'.
If I dot-notate it:
SELECT COUNT(1) FROM postgres.dbo."PERSON"
I receive an error "Cross DB query is not supported".
So, I can't connect to the specific database directly and if I connect without specifying a database, I can't cross-query to the table.
Any one done this yet?
Or, if not, any ideas on helping me figure out what to try next? I'm out of ideas.
Babelfish databases (that you connect to on port 1433) have nothing to do with PostgreSQL databases (port 5432). Essentially, all of Babelfish lives within a single PostgreSQL database (parameter babelfishpg_tsql.database_name).
You seem to have a single-db setup, because Cross DB query is not supported. With such a setup, you can only have a single database via port 1433 (apart from master and tempdb). You have to use CREATE DATABASE to create that single database (if it isn't already created; ask sys.databases).
I can't tell if it is supported to create a table in PostgreSQL (port 5432) and use it on port 1433 (the other way around is fine), but if so, you have to create it in a schema that you created with CREATE SCHEMA while connected on port 1433.
The answer was that I should be connecting to database "master".
Even though there is no database titled master in the instance, you still do connect to it.
Once connected, running the following:
select current_database();
This will indicate you are connected to database "babelfish_db".
I don't know how that works or why a database would have an undocumented alias.
The bigger answer here is that cross-DB object references are not currently supported in Babelfish, outside your current SQL Server database.
This is currently being worked on. Stay tuned.
I'm currently trying to connect a Node JS app to a single database that I created using the Azure SQL Database. In order to connect to the database, I use Sequelize. In order to do that, I set up the firewall to accept my IP address as explained here, and I configured a config.json file like so
"username": "SERVER_ADMIN_NAME#MY_IP_ADDRESS",
"password": "ADMIN_PASSWORD",
"database": "DATABASE_NAME",
"host": "SERVER_NAME",
"port": 1433,
"dialect": "mssql",
"dialectOptions": {
"options": {
"encrypt": true
}
}
However, after running the application it fails to connect to the database and returns the following message
"Cannot open server '211' requested by the login. Client with IP address 'MY_IP_ADDRESS' is not allowed to access the server. To enable access, use the Windows Azure Management Portal or run sp_set_firewall_rule on the master database to create a firewall rule for this IP address or address range. It may take up to five minutes for this change to take effect."
I've already waited for more than 5 minutes but the result is still the same. Now, the first thing that came into my mind was how I provided the values for the config.json file. However, after checking the sys.database_firewall_rules using the following query
SELECT * FROM sys.database_firewall_rules;
The table was EMPTY. From here on I'm not really sure what I'm supposed to do. I was wondering if anybody could point out what I was missing? Thanks in advance!
You should not connect to Azure SQL Database using the IP address because it can change any time.
Could you try a connection like below using tedious driver?
var Sql = require('sequelize');
var sql = new Sql('dbname', 'UserName#server', 'password', {
host: 'server.database.windows.net',
dialect: 'mssql',
driver: 'tedious',
options: {
encrypt: true,
database: 'dbname'
},
port: 1433,
pool: {
max: 5,
min: 0,
idle: 10000
}
});
Make sure you are adding your public IP address not your local IP address to the firewall rules. To verify the firewall rules you have added already, please run the following query:
SELECT * FROM sys.firewall_rules;
The above query shows rules at the server level. You have created your rules at that level.
I want to import some data to Excel2016 from a postgresSQL table. I have tried it by clicking "new query" and selecting From Database -> From PostgresSQL Database:
But then I receive the following error:
Details: "TlsClientStream.ClientAlertException: CertificateUnknown: Server certificate was not accepted. Chain status: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
. The specified hostname was not present in the certificate.
at TlsClientStream.TlsClientStream.ParseCertificateMessage(Byte[] buf, Int32& pos)
at TlsClientStream.TlsClientStream.TraverseHandshakeMessages()
at TlsClientStream.TlsClientStream.GetInitialHandshakeMessages(Boolean allowApplicationData)
at TlsClientStream.TlsClientStream.PerformInitialHandshake(String hostName, X509CertificateCollection clientCertificates, RemoteCertificateValidationCallback remoteCertificateValidationCallback, Boolean checkCertificateRevocation)"
Any suggestions on how to solve this? Thank you so much in advance!
This error is indicative of a connection being made to the PostgreSQL db where the server's certificate cannot be validated by the client making a connection. This error only happens when the "Trust Server Certificate" is set to FALSE in the library Excel uses to connect to PostgreSQL (npgsql).
There are several ways that may work to address this, in the order I'd suggest trying them:
If there's an option hidden in Excel (perhaps under advanced options or similar) to set the 'Trust Server Certificate' parameter to True, then your connection will start working. If it allows you to specify an entire connection string, then this can be done in the connection string as well.
The database should have a public key in an SSL cert listed in the postgresql.conf file for the db. If you (or your db administrator) can get that public key and add it to your machine (instructions will vary depending on your operating system).
I have finally found a workaround for my problem.
What you can do is to:
Install the current postgresql driver from here
Follow the instruction from this video
With this, you can connect to your postgreSQL database by ODBC.
I wrote a node web app and created a mongoDb database on my local system. I was using the following code to connect to local mongodb from node js
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/db_name'); //local
And everything was working fine on my local machine. So I went on and created an mlab account and created a database. But when I tried to run the code by changing the connection string, connections are still established I believe. But the find and save requests are not invoking the callbacks, even no errors shows up. All requests are getting timed out.
var mongoose = require('mongoose');
mongoose.connect("mongodb://user:pass#ds036789.mlab.com:36789/db_name"); //mlab
Another thing I noticed is that I cannot ping ds036789.mlab.com. But TCP connections are succeeding when I tried the nc command
nc -w 3 -v ds036789.mlab.com 36789
I even tried deploying to azure. Which doesn't work either. Any help is much appreciated. Thanks.
EDIT:
Not being able to ping was due to the fact that I used azure hosting. It is expected. And I also found out that I get this error while trying to connect :
connection error: { [MongoError: auth failed] name: 'MongoError', ok: 0, errmsg: 'auth failed', code: 18 }
Credentials are correct though.
From the error mesasge it seems like you are using invalid auth details
This is most likely happen when you do not create username and password for individual database i.e, db_name in you case.
Check mLabs account and create username and password for db_name database and update your connection string.
According to the error information, as #Astro said, it seems to be caused by using invalid auth user/password which be created for database.
Did you create a new user for connecting the database, not account user for mlab? Such as the figures below shown.
Fig 1. A database user is required for connecting
Fig 2. Users list for the database
Hope it helps.
I figured out the issue, it wasn't an issue with the credentials. It was an issue with the mongoose version. The mongoose version I used didn't support the authentication. I had to remove the package and reinstall the latest version. with
node install mongoose#latest
Hope it helps someone. And thanks for the answers :)
I'm having trouble getting a connection established to my OracleDB that resides on a different system. From what I've learned from the Oracledb Node module Documentation, the connection setup should look like this:
oracledb.getConnection(
{
user : "hr",
password : "welcome",
connectString : "localhost/XE"
}
//fun querying goes here
I've reviewed the oracledb module documentation, however I cannot seem to find the syntax by which I need to follow when given certain variables. In order for me to secure a connection to the DB, I need to provide on the connection:
dbUserID: blah blah (maps to 'user' in Object),
dbPassword: Blahblahblah (maps to 'password' in Object),
oraclePort: (1521 as standard, but not sure where this goes in the object),
dbHostName: db.server.com (maps to 'localhost' in Object),
dbInstance: DBINSTANCENAME (not sure where this goes in object)
I'm fairly certain the hostname, port and instance are to be used in the 'connectString' section of the object, however I'm unsure how it should be formatted.
Any help and suggestions on how I might go about getting myself connected would be greatly appreciated!
EDIT: Im also receiving this error when the server is started up for the first time: [Error: ORA-12162: TNS:net service name is incorrectly specified] I thought I had solved this error but apparently I have not! Any suggestions would be appreciated.
Try the following:
oracledb.getConnection(
{
user : "hr",
password : "welcome",
connectString : "db.server.com:1521/DBINSTANCENAME"
}
Use 'lsnrctl services' on the DB server to check the service names available. The "Easy Connect" syntax uses the service name, not an instance name.
Check you have the right ports open.