I am not able to connect to a SQL Server 2005 hosted on a Win7 virtual machine. I am new to VM, can someone help me locate the problem?
I am able to connect another SQL server which is installed on the local machine.
When you say you can't connect - that can mean a lot of things - really you need to be much more specific.
In addition to the comments and answers already here - If you're having trouble connecting to it in Sql Server Management Studio - you should open Configuration Manager on the VM itself and make sure that Shared Memory and Named Pipes are enabled (open the SQL Server Network Configuration node in the tree).
For example, SQL Server Express instances are configured by default to reject the kind of remote connection that SSMS wants to open by default.
first of all check your connection string (for reference):
http://www.connectionstrings.com/
Second you need to add an exception in the guest machine firewall or completely disable it (port 1433 is for sql tcp/ip access).
this works fine for me:
SQLConn.ConnectionString = "Network Library=DBMSSOCN; Data Source=xxx.xxx.xxx.xxx,1433;
Initial Catalog=mySQLServerDBName; User ID=myUsername;Password=myPassword"
good luck
Related
I have two Win 7 64 bit machines.
On the first one I have installed SQL Server 2008 R2 Express and have no trouble connecting via Management Studio with Windows Auth and also via SQL Auth with a user I set up on the database.
On the second machine I am trying to connect to the database on machine 1 using Management Studio. I'm trying SQL Auth. I therefore obviously also can't connect to it via connection string in my .NET Code
I can ping the first machine from the second.
Things I have tried include the following:
On the machine the database is installed make sure the firewall is allowing connection on Port 1433
Made sure SQL Server service is running
Made sure SQL Server Browser service is running
Created an exception for sqlbrowser.exe in the firewall
Enabled TCP/IP Protocol through SQL Configuration manager
Allowed Remote connections in SQL Server Management Studio
The error I get is:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections
This is the connection string I use in code
Data Source=xxx.xxx.xxx.xxx\sqlexpress;Initial Catalog=dbName;User Id=myUser;Password=myPassword;
This can be caused by a number of reasons but I'm glad my suggestion about checking firewall ports (rather than just allowing a one-way exception for SQL Browser) led you to the answer: the firewall wasn't allowing the correct port # through.
If i remember correctly SQL Server disables remote connections by default.
Please check whether remote connections are enabled and enable them if not:
RMB on Server in Management Studio Object Explorer -> Properties -> Connections -> Allow remote connections...
I might be the million'th person posting about this, but others' solutions haven't helped me. I have a database on Microsoft SQL Azure. I an trying to connect to it using the Visual Studio 2010's "Connect to Database" Tool.
From my Windows 7 machine, I can connect to it very easily. But from my Windows Server 2008R2 machine i am getting the classic error -
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
All the posts around the web seem to be focussing on the problems on the server side, no one cares if the client goes rogue. :(
Thanks for the replies.
I have seen similar problems with VS2010 DB Tool and Windows Server so I would not suggest try using SSMS 2008 R2 (must be R2). Once you have download SSMS 2008 R2 and configured properly to work on Windows Server it sure will work. In most of the case you really need to open SSMS settings to get it workon on Windows Server.
Next a few points to check:
Verify that the telnet is working from your Windows Server Machine:
c:>telnet _your_sqlazure_database_name.database.windows.net 1433
Disable your real time security and the try again
Finally following the link to keep applying settings in your Windows Server and SSMS which are applicable and I am sure it will work:
http://www.mssqltips.com/sqlservertip/2340/resolving-could-not-open-a-connection-to-sql-server-errors/
One issue is that you need to connect via tcp, not named pipes (per your error message).
Are both servers behind the same firewall (e.g. the same external IP address)? The SQL Azure firewall needs to be configured to allow access from remote IP addresses.
I know mysql, and I'd like to learn sqlserver.
I'm currently stuck on the basics of basics:
How to install and configure sql server
How to connect to it
I installed Sql Server through Web Platform Installer, and have Visual Studio 2008 installed. Still, I can't understand how to connect to my server:
I see that the SQL service itself (SQLEXPRESS) is running in both in services.msc and Sql Server Configuration Manager
I try to connect to it via the Management Studio, but I don't understand what to do.
Where do I begin?
Start Management Studio and Select Database Engine as your SqlExpress instance then choose Windows Authentication and press connect. After that in object explorer you will see your databases if you want to create one right click databases and create new one.
You can look at http://msdn.microsoft.com/en-us/library/ms186312.aspx
There are two types of ways you can install a SQL Server instance:
1. Named Instance
2. Default Instance
When you use the default instance, and it's the only instance on the machine, the server would listen directly on the port 1433 which is the default SQL Server port. This is what you'd expect if you come from a mysql background.
When you "name" an instance, such as SQLEXPRESS, it works differently. You connect to a special service (SQL Server Browser Service) which now listens on that port, and points the client to the "correct" port of the named instance. I hope I'm being accurate about this one, but that's what happens in general.
You could connect directly to the named instance if you see what port it binds to in the SQL Server error log, and if you could choose the port in the client application.
Read more about this here: http://msdn.microsoft.com/en-us/library/ms181087.aspx
I want to connect from home using SQL Server 2005 to another PC.
I had a look on the msd...but before connecting it says I should connect to another computer
using the computer management and it didn't work out....I can only connect to computers from my workgroup?
Thanks,
Luisa
Disclamer
This is just some additional information that might help anyone. I want to make it abundantly clear that what I am describing here is possibly:
A. not 100% correct and
B. not safe in terms of network security.
I am not a DBA, but every time I find myself setting up a SQL Server (Express or Full) for testing or what not I run into the connectivity issue. The solution I am describing is more for the person who is just trying to get their job done - consult someone who is knowledgeable in this field when setting up a production server.
For SQL Server 2008 R2 this is what I end up doing:
Make sure everything is squared away like in this
tutorial which is the same tutorial posted above as a solution by "Dani" as the selected answer to this question.
Check and/or set, your firewall settings for the computer that is hosting the SQL Server. If you are using a Windows Server 2008 R2 then use the Server Manager, go to Configuration and then look at "Windows Firewall with Advanced Security". If you are using Windows 7 then go to Control Panel and search for "Firewall" click on "Allow a program through Windows Firewall".
Create an inbound rule for port TCP 1433 - allow the connection
Create an outbound rule for port TCP 1433 - allow the connection
When you are finished with the firewall settings you are going to want to check one more thing. Open up the "SQL Server Configuration Manager" locate: SQL Server Network Configuration - Protocols for SQLEXPRESS (or equivalent) - TCP/IP
Double click on TCP/IP
Click on the IP Addresses tab
Under IP1 set the TCP Port to 1433 if it hasn't been already
Under IP All set the TCP Port to 1433 if it hasn't been already
Restart SQL Server and SQL Browser (do both just to be on the safe side)
Usually after I do what I mentioned above I don't have a problem anymore. Here is a screenshot of what to look for - for that last step:
Again, if someone with more information about this topic sees a red flag please correct me.
If you want to connect to SQL server remotly you need to use a software - like Sql Server Management studio.
The computers doesn't need to be on the same network - but they must be able to connect each other using a communication protocol like tcp/ip, and the server must be set up to support incoming connection of the type you choose.
if you want to connect to another computer (to browse files ?) you use other tools, and not sql server (you can map a drive and access it through there ect...)
To Enable SQL connection using tcp/ip read this article:
For Sql Express: express
For Sql 2008: 2008
Make sure you enable access through the machine firewall as well.
You might need to install either SSMS or Toad on the machine your using to connect to the server. both you can download from their's company web site.
all of above answers would help you but you have to add three ports in the firewall of PC on which SQL Server is installed.
Add new TCP Local port in Windows firewall at port no. 1434
Add new program for SQL Server and select sql server.exe
Path: C:\ProgramFiles\Microsoft SQL
Server\MSSQL10.MSSQLSERVER\MSSQL\Binn\sqlservr.exe
Add new program for SQL Browser and select sqlbrowser.exe
Path: C:\ProgramFiles\Microsoft SQL Server\90\Shared\sqlbrowser.exe
I'll edit my previous answer based on further info supplied. You can clearely ping the remote computer as you can use terminal services.
I've a feeling that port 1433 is being blocked by a firewall, hence your trouble. See TCP Ports Needed for Communication to SQL Server Through a Firewall by Microsoft.
Try using this application to ping your servers ip address and port 1433.
tcping your.server.ip.address 1433
And see if you get a "Port is open" response from tcping.
Ok, next to try is to check SQL Server. RDP onto the SQL Server computer. Start SSMS. Connect to the database. In object explorer (usually docked on the left) right click on the server and click properties.
alt text http://www.hicrest.net/server_prop_menu.jpg
Goto the Connections settings and make sure "Allow remote connections to this server" is ticket.
alt text http://www.hicrest.net/server_properties.jpg
Here is the link ... You must read it.
I have VS 2008 and SQL Server 2005 Developer edition installed on my desktop. I have a instance of XP running in Virtual PC and want to connect to the dev instance. I am logged on as a domain user on both the desktop and the Virtual instance of XP. When I try to connect I get a message saying "Server does not exist or access denied". What do I need to do to connect. I am using trusted connection and the userid has privileges on the DB.
Paul
Make sure that the VPC is not using NAT for its network connection.
Also check your configuration to be sure remote connections are allowed. Remote connection is turned off by default.
Have you tried pinging your desktop from the virtual instance? I had the same problem and figured out that the firewall was preventing any kind of communication between both machines.
I found out that you have to go into the SQL Server Surface Area Configuration tool and set "Remote Connections" to "Local and remote connections". Apparently the default is "Local connections only".
I encountered the same thing, sort of - MS Server 2003 and SQLServer 2008 Ent running on VMWare, and get the "Server does not exist or access denied" when trying to connect from host machine (on Vista x64).
SO, do you reckon changing to "Local and remote connections" via the SQL Server Surface Area Configuration tool will do the trick?
For me despite configuring the SQL server for Remote Connections also, I could not access the sql server from Win XP VM.
So when I disabled the windows firewall from host machine, it worked fine!!