Unable to connect to SQL Server on domain - sql-server

I have been trying to connect to the SQL server in my domain for several days. I have a virtual box network with a client and a server. Only the client can’t find the sql server on my server. I followed all the steps to allow my database to comminuqer on port 1433 but nothing changes.
I don’t know what to do, I enabled TCP/IP with port 1433 and allowed connections in my database, as everyone recommends.
I have no server proposal and when I test with ip, I also have a mistake :
I added a new rule on my server:
The answer may be simple for some but I am not an expert in software development, I hope some will have answers.
Thanks in advance:)

Related

Cannot connect Access to SQL Server Linked Tables - error message loggingin

I have a client for which I am setting up a new SQL Server Express and (on a different computer) connecting their Access front end to that SQL Server. I created an account on SQL Server, changed authentication to SQL Server. I am able to log on to that account with no issues locally (through SQL Server Management Studio) on the server itself, but when I go back to the client machine and try to create either an ODBC connection or connect directly in Linked Table manager, I get the error below. Looking at the error log in SQL Server I can see no failed logins. In Access and/or ODBC I use Servername\SQLEXPRESS, choose SQL authentication and type in the username/password that I created. But it's still being stubborn.
I'm kind of at my wits end with this one. I checked to make sure that login is enabled, that the created database is mapped to this user, but I'm out of answers. Anyone have any ideas? I'm sure it's something really stupid that I'm overlooking, I've used SQL Server for a long time but I'm not an experienced DB Administrator I'm sure it's something really simple I'm overlooking, but I've done this hundreds of times before. And Windows Authentication won't work because it's on a different computer.
To connect to a named instance on SQL Server Express with Servername\SQLEXPRESS, you need:
SQL Server Browser service running,
and its UDP port 1434 open in the firewall.
https://learn.microsoft.com/en-us/sql/sql-server/install/configure-the-windows-firewall-to-allow-sql-server-access
SQL Server Browser service
UDP port 1434
The SQL Server Browser service listens for incoming connections to a named instance and provides the client the TCP port number that corresponds to that named instance.
The fixed TCP port for your instance open in the firewall.
You set this in SQL Server Configuration Manager
https://learn.microsoft.com/en-us/sql/database-engine/configure-windows/configure-a-server-to-listen-on-a-specific-tcp-port
This looks more like a network setting rather than server issue.
Check if all necessary permissions, configuration and settings on your machine running the server are OK to accept external connections.
Usually its the server that is rejecting the connection for security reasons.

Connecting to SQL Database Server Remotely

I'll preface my question with: I am an absolute beginner with respects to the nature of MS SQL Server and have a layman's understanding of networking and 'computers' in general...
So, I'm trying to replicate an environment where:
There is an 'application server' which hosts HPE's ALM
This communicates with a database server with a Microsoft SQL Server DB
I currently have Microsoft SQL 2012 Server with a sample DB uploaded onto it on one laptop (Laptop 1) and the ALM software on the other laptop (Laptop 2). Both are connected to the same WiFi network.
Laptop 2 is asking me for Database parameters such as:
DB Host Name
DB Port Number (1433 by default)
OR Connection String
I have little idea of what I'm doing - I'd have thought it might be possible to connect to the DB through some sort of variant of the IP address of Laptop 1... but I'm unsure.
How can I connect to a MS SQL 2012 DB from one laptop to another? I realise this is probably a loaded question - I'd be happy if someone can point me in the right direction rather than an exact answer!
Thanks guys,
ST
I see two potential issues:
A corporate laptop might have firewall restrictions. So, you have to
open port 1433 for SQL Server.
Possibly you are playing with SQL Express, which by default, does not
have TCP/IP connection enabled. To enable it run "SQL Server
configuration manager", go to Network
configuration->Protocols->TCP/IP->Enable->restart SQL Server. Also check other properties. If static port 1433 is not set - set it.
Two types of adjustments must be set before connecting to the remote SQL Server. These settings are necessary because without them the connection to the remote SQL Server will not be able to be successfully created
Configuration settings:
-The SQL Server instance to allow the protocol being requested
-Allow access through the Window Firewall
1- Enabling TCP/IP protocol
2- Configuring Windows Firewall
For More details see the link :
https://www.sqlshack.com/how-to-connect-to-a-remote-sql-server/

SQL Server database not publicly accessible through port 1433

Alright, I know this sounds pretty basic, but it is eluding me. I have a local server with SQL server 2017 installed (Express Edition, because - Free). I can access the database when remoted into the server without issue. The problem is when I try to access the server using the public IP rather than the local hostname. My router has this server in the DMZ currently and port forwarding is setup for port 1433. The server firewall is currently even turned off and I still cannot see it.
The SQL server does have TCP/IP enabled, it is listening on port 1433.
If you need any further information, let me know. I've been troubleshooting this for two hours and just lost at this point. I am no where near new to technology and servers, but not too familiar with SQL Server.
Make sure you have enabled remote connections.
http://web.synametrics.com/sqlexpressremote.htm

Connecting to SQL Server from a different network

I recently set up SQL Server locally and have followed the numerous guidelines on this website and others to connect to it from a different network:
Connect to MS SQL Server 2014 from a computer on a different network
Connect to MS SQL Server 2014 from a computer on a different network
Firewall rules to allow remote connection to SQL Server in a different domain
How to use SQL server from a different network
This is what I have tried so far:
Ports 1433 and 1434 have been enabled in SQL Server Config Manager
Based on these suggestions in the links above, I have added inbound rules to my firewall to create exceptions for SQL Server and its associated ports (Ports: 1433 & 1434).
When I try using telnet to connect, I get the following:
Connection closed by remote host
When I try checking the status of my port from the following website:
http://ping.eu/port-chk/
It indicates that my port is closed (both 1433 & 1434).
When I try connecting from a different machine on the same network, I am able to do so without issue.
I do not understand what other layer of protection exists that is blocking connections to my local version of SQL Server.
Any guidance is greatly appreciated.
Thanks.

Create ODBC Connection from Access to SQL Server

I need help connecting from a blank access 2010 database to my remote SQL Server 2005 database. This is because I'm going to write all my client apps in Access, and store everything on the server with SQL Server. I'm using the wizard, and trying to make a new DSN. What do I put for:
Which SQL Server do you want to connect to?
Server:
The server is windows server 2008, and it is remote. I've been connecting to it with a .RDP file, but I'm not sure how to set up the link.
Please ask me to clarify anything that doesn't make sense.
Thanks.
Enter the IP address or the Windows Host Name for the server that has SQL Server on it.
You'll need to make sure that your server has port 1433 open in it's internal software firewall. If you're going through any kind of router that router will also need to have port forwarding and possibly the firewall opened up for port 1433.
Also, you'll need to make sure that your SQL Server instance is setup to listen on TCP/IP with port 1433 (unless you choose a different port).
You might be best off trying to connect to it from SQL Server Management Studio first. Once you have that working you should have an easier time setting up your DSN.
For troubleshooting, see this:
http://blogs.msdn.com/b/sql_protocols/archive/2005/10/22/sql-server-2005-connectivity-issue-troubleshoot-part-i.aspx
http://blogs.msdn.com/b/sql_protocols/archive/2006/09/30/sql-server-2005-remote-connectivity-issue-troubleshooting.aspx

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