Asp.net Application Connect To SQL Through A Firewall
May 7, 2002
Hi guys.
We have an external webserver(server1 on domain1) is a DMZ, and sql server7(server2 on domain2) inside the firewall.
Domain1 trusts domain2 but domain2 does not trust domain1.
Our firewall hosting by outside vendor and they told me they already opened up the port 1433 for server2.
I put a small asp.net application on server1(this application works fine in intranet. 2000 server,iis5,virtue directory, and .net frameword were well installed and configured), and I got S'QL server does not exist or login fail error'.
Any idea about that? And how to test the port was opened?
Any input appreciated.....
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Jun 8, 2007
Dim strCON As String = _
"workstation id=DJI-MAIN;packet size=4096;user id=sa;integrated security=SSPI;data source=DJI-MAIN;persist security info=False;initial catalog=RacingSystem"
Dim cnn1 As New SqlConnection(strCON)
cnn1.Open()
This is the code I have been using to connect to my default instance for 18 months. A recent upgrade to Windows Live onecare now prevents me connecting to the server from the same machine. The following error message is generated:-
Unhandled Exception: System.Data.SqlClient.SqlException: SQL Server does not exist or access denied.
at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
at TrainerReport001.Form1.Form1_Load(Object sender, EventArgs e) in F:#ProjectsStatsOwnerReport001Form1.vb:line 84
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)The program '[3336] TrainerReport001.exe' has exited with code 0 (0x0).
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
at System.Windows.Forms.Control.set_Visible(Boolean value)
at System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at TrainerReport001.Form1.Main() in F:#ProjectsStatsOwnerReport001Form1.vb:line 2
If I turn off the onecare firewall I can connect as normal, but this is not a desired option. I have tried enabling port 1433 on the firewall, this does not work either. Any help greatly appreciated, onecare support seems reluctant to help.
TIA
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Oct 21, 2004
Hello,
For my application, I need to consult a database located on a server on the local network. The application is located on my pc. I use the connection string
Code:
"Integrated Security = SSPI;database=dbName;data source=serverName"
(I program in C# and connect with ADO.NET)
When I compile my project as a windows application, this works fine. But when I compile as a web application in ASP.NET and try the same connection, it won't connect. How can this be solved?
Thanks
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Jul 1, 2005
Hey everyone, I'm having trouble connecting to my sql express instance through my vb.net application. I can connect to it from Visual Studio and the management tools, but get an error when connection with a connection string. What should my connection string look like? I'm using the a default SQLEXPRESS instance.
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Jul 12, 2006
Hi
I developped an ASP.Net application (with Web Dev Express ) wich attempt to connect to SQL Server Express (installed in the local machine) using Windows authentication.When i launch my application within Web Dev or from IE navigator i receive the following error message : Cannot open the database 'MyDB' login failed for user ServerNameASPNet.I use SQL Server Management Studio Express to give the user ServerNameAspNet permission to connet to the database but i still receive the same error message.I created a user with strong password within Management Studio with connect permission and attempt to connect from my application using SQL Server authentication i receive the error message : The user 'UserName' is not associated with a trusted connection for SQL Server.Note that when i use the Connect to Database tool in Visual web dev the connection success when i use Windows authentication but fails when i use SQL Server authentication with the same error message above.My OS is WXP Pro SP2
Thanks for any help
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Aug 3, 2006
I added a database named appdata to the app_data folder to hold temporary application data. I want to show this data in a report. I created a dataset and an object to select the data. I then created an report.fdlc and a report.aspx with a ReportViewer on it pointing to the dataset object. If I right click on the report.aspx and View in Browser, it work perfectly. But when I upload it to the server I get and browse to it I get (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified). The server does allow remote connections. So I am thinking it's my connection string of the fact that the server doesn't have Sql Server Express.?
Here's my connection string. What am I missing here?
<add name="appdataConnectionString"
connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|appdata.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
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Jun 28, 2007
I am having a strange problem. I have an application that to connects to SQL Database in SQL Server 2005.
When I run the application with Visual Studio everything works fine but when I deploy the application on my web server and then to access the site .
I get an error : Login failed for user ''. The user is not associated with a trusted SQL Server connection.
For some reason the application is not passing the user name . I have checked the IIS and authentication is set to Integrated Windows Authentication .
My connection string is correct as well
<add name="xxxxx" connectionString="Data Source=xxxxxx;Initial Catalog=xxxx;Integrated Security=SSPI" providerName="System.Data.SqlClient"/>
I will appreciate any kind of assistance in this matter. Thanks
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Apr 30, 2005
Hi!I am going to connect to "SQL Server 2000" through an "ASP.NET Web Application". My development environment is "Visual Studio .NET 2003". In my "Toolbox" -> "Data", I drag a "SqlConnection" and drop on the page. It would automatically be named "SqlConnection1". In its "Properties" -> "ConnectionString" -> "<New Connection...>", I would enter my Server Name (SAMIEI), select "Use Windows NT Integrated Security" and Select the Database on the Server (Northwind). Then such Connection String would automatically be generated:
"workstation id=SAMIEI;packet size=4096;integrated security=SSPI;data source=SAMIEI;persist security info=False;initial catalog=Northwind"
Now, I may see "SAMIEI.Northwind.dbo" in the "Data Connections" row of "Server Explorer" with its all "Database Diagrams", "Tables", "Views", "Stored Procedures" and "Functions".Please take a look at the following code:
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try SqlConnection1.Open() Catch ex As SqlException Response.Write(ex.Message) End Try
End Sub
It would unexceptedly encounter such error:
"Login failed for user 'NT AUTHORITYNETWORK SERVICE'"
Please tell me the reason. I am much obliged to you for your attention.
Regards!M.Sadegh Samiei
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Apr 3, 2006
Hi
I can't connect to sql server 2005 from my asp.net web page. I seem to be able to connect to it when i run the application from within visual studio but i can't connect to it when i run the application from IIS.I am new to sql server 2005 express so please bear with me.The error message i get is: Cannot open database "Vets" requested by the login. The login failed.Login failed for user 'OSCAR2K4ASPNET'.I don't know where this user OSCAR2K4ASPNET came from but i looked in sql server 2005 and there he is. In the left hand pane I went to Security and then logins and found oscar2k4asp.net there. I went to the properties for this user and went to User Mappings. There was no tick next to my Vets database so I added one and ran the application from IIS. I also added the user to every single role in the vets database (including dbowner). I also went into the vets database itself and found the oscar/aspnet user and made sure he was added to every role.
I ran the application again. This time i got a lots of different errors. If the page was trying to run a select procedure I got the error user does not have select permission. If the page was running an SP i got the error or user does not execute permission
I have never had this problem before so I don't understand.Where did this user come from? Was he created automatically when i configured my database for membership and roles? How do i set up this user so he can access the databsae from IIS.
The only way I could get the application to run from IIS was to go to Security - Logins for sql server and add the oscar2k4asp.net user to the sysadmin role.
I find this very strange. Naturally i don't want to leave oscar2k4 in sysadmin.
Please help :) I can't upload my website until i fix this
Thanks, andrea
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in create a new software application using C# as front end and database with sql. how to connect SQL server with my front end application.dot net training in chennai <a href="http://www.fita.in/dot-net-training-in-chennai/">Dot Net Training in Chennai</a>
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I have to search the keyword from windows application using dtSearch. when user enter the list of keywords in UI, i have to connect to dtSearch tool and based on the output return, the matched keyword should be added to database table.
Now, i have problem in connecting this tool from my application.
Thanks in advance.
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Dec 12, 2006
All,
I'm a newbie here so forgive me if I have missed something completely obvious.
I have bought a shopping cart script of a well known company (Evolve Merchant 5) and I wish to set it up locally on my development server, I created a virtual directory, set the web application up and get the asp pages to display perfectly. However, in the configuration file (global.asa & web.config) for the application it reguests information to be provided: <add key="DBName" value="Database name" />
<add key="DBServer" value="IP address of server" />
<add key="DBUserName" value="User name" />
<add key="DBPassword" value="password" />
<add key="AltPassword" value="password" />
What I can't determine is what the SQL Server 2005's IP address is? the pages of this application show when I type http://localhost/catalogue into IE, so I presumed the server address would be the IP of localhost, when typed ping localhost into command promt it gives me 127.0.0.1, but when I enter this into the config file and try to load the application it just hangs and then eventually says:
"Microsoft OLE DB Provider for ODBC Drivers (0x80004005)[Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied./catalogue/global.asa, line 54"
I have created a new database in SQL Express called: merchant509 and restored the tables to it as the manufactures help files state, I created a new login called shop which uses SQl authentication, so as I can provide a password. So the settings should look like this:
<add key="DBName" value="Database name" />
<add key="DBServer" value="127.0.0.1" />
<add key="DBUserName" value="shop" />
<add key="DBPassword" value="1684" />
<add key="AltPassword" value="1684" />
But it doesn't work, does anyone know what i have done wrong?? the SQL server is runnign on the same computer as I am trying to access it from, it is set to accept all forms of comunication i.e. TCP/IP etc.. in the server configuration manager the IP address part of TCP/IP in protocols shows IP1 as 192.168.2.2 active yes enabled yes, and IP2 as 127.0.0.1 active yes and enables yes, I have tried the 192.168.2.2 and this gives the same errors, this is my registed IP on my home network.
I'm now stumped, I haven't a clue what else I can try, I would be very greatfull if anyone has any ideas.
Regards,
Daniel Coates
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Apr 10, 2008
Hi,
Any one tell me the code to connect to .sdf file in c# windows application?And tell the requirments to conncet.My sdf file path is this
C:\Documents and Settings\koti\My Documents\Example.sdf
I write this code.It is not working
string str = "Provider=Microsoft.SQLSERVER.MOBILE.OLEDB.3.0;Data Source=C:\Documents and Settings\koti\My Documents\Example.sdf;SSCE:Encrypt Database=True";
SqlCeConnection cn = new SqlCeConnection(str);
cn.Open();
Ant one help me Plz...
Regards,
venkat.
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Aug 14, 2015
After manual AG fail-over from primary to secondary the application is not able to connect the listener name for atleast for 5 - 10 mins
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At the same when i try to connect it from SSMS from a remote machine it works fine.
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Jan 3, 2007
Hi,
We recently installed Sql 2005 server and it was working fine. But today one of our user reported that they could not able to connect the sql server 2005 from the application. When I checked the error log, I found the following error for every one minute. We restarted the sql service on this sql 2005 instance but still we are getting the same error.
SSPI handshake failed with error code 0x80090311 while establishing a connection with integrated security; the connection has been closed.
Could any one help us on that?
Regards,
Sankar
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May 9, 2007
OK, I am not a programmer, but administrate the Report Server and its security. The .NET programmers want to connect direct to Report Server using WEB.CONFIG settings (see below).
<appSettings>
<add key="ConnectionString" value="Server=bpatlqddwatlqddw01;Database=MP2_NET_STAGE;Integrated Security=False;User ID=MP2_Net;Password=xxxxx;Persist Security Info=false"/>
<add key="LogPath" value="\bpga030wde01wwwroot$MP2_NetLogs"/>
<add key="Url" value="http://bpga030wde01/MP2_Net/" />
What do I need to do to ensure their dynamic reports can run against my Report Server? What kind of rights do I assign the "MP2_Net" (above) login? All of this is outside the IIS-Report Server security environment? Do I assign rights via SQL Mgr? I cannot find any doco on this process.
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Aug 25, 2007
Hi all,
I'm working on a project where I have to create a password protected form for teachers to submit reports about students.
Originally I was going to use asp.net to create the form, but unfortunately the server I'm working with will not be granted asp functionality in the allotted timeframe.
To solve this issue I have another idea. So I will ask a few questions to help with research before I begin coding.
Is it possible to create a windows application that can connect to an access database hosted online? The windows app will need to be be able to update, insert, and select information from the database.
There is only going to be about 30-40 people using this windows application once or twice a week.
Thus I envision taking a password protected access database and dropping it onto a server.
The windows application will have the online location of the database embeded into the code. (connection string)
From there on out coding for the windows application should be the exact same as if the database was hosted locally on the computer, correct?
Also,
1. What is a good way to check and make sure the computer is connected to the internet before my application tries to access the database?
2. Are there any drastic security issues with this process that I should think about. The database will only be password proected, and the windows application will take a username/password from the user and check it against a table before they are able to submit info to the database.
I just need to be pointed in the right direction for this project.
Thanks.
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Oct 31, 2007
How to Connect sqlServer 2000 in Pocket PC 2003 Application.
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May 1, 2008
Hello, we have the hosting account with GoDaddy Server. We have using Visualstudio.net and MSSSQL Server 2005.
For hosting the files for the remote server ( Godaddy ) we are using FTP Cute client to upload the files. For Uploading a database they given a seperate login and we are hosted my data as a Transact SQL File. Up to this its going fine.
After that I want to retrieve my data from GoDaddy Database server. They are not allow the remote connections directly. But they told to use the File DSN to retrieve the data from thier server ( GoDaddy Server ). I don't Know how to use thier File DSN to connect My ASP.Net 2.0 Application to thier GoDaddy Database Server.
If I asked to GoDaddy Support team they are sending this file.
Connecting to a Microsoft SQL Server Database Using ASP/ADO
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Feb 1, 2008
I have problem connecting to a SQL 2000 server that is hosted on a Windows 2003 server. My application uses classic ASP with VB6 components. VB6 components connect to SQL server and return data to ASP application. Everything was working fine when the application and SQL server was hosted on NT machine. Recently we have shifted to Windows 2003 server. Since then we could not establish connection to SQL2000.
I'm using UDL as connection string.
IIS and SQL2000 hosted on the same machine with Windows 2003 OS.
This seems to be a security issue. Earlier I faced this issue for a .net application which I resloved adding a domain account to both SQL server and IIS directory security.
Request your input to solve this problem.
Sunandajit Ray
Infrasoft Technologies Limited
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Jan 13, 2007
Here is the situation:
I have SQL server express 2005 installed on my pc as instance SQLEXPRESS.
I have created a Visual Basic applicaion with the following as connection to the SQL server express 2005 running on the same PC:
****************************************************************************************************
Dim lconnectionString As String Dim builder As New SqlConnectionStringBuilder Dim cmd As New SqlCommand Dim reader As SqlDataReader Dim parameter As SqlParameter builder("Data Source") = ".SQLEXPRESS" builder("Initial Catalog") = "" builder("AttachDbFilename") = "C:My DocumentsVisual Studio 2005Projectsabcabcabc.mdf" builder("Integrated Security") = True builder("User Instance") = True lconnectionString = builder.ConnectionString Dim sqlConnection1 As New SqlConnection(lconnectionString) cmd.CommandText = "SP_add_collection" cmd.CommandType = CommandType.StoredProcedure cmd.Connection = sqlConnection1 sqlConnection1.Open()
*******************************************************************************************************************
It seems that i can not connect to the abc.mdf in SSMSE while the VB program is running. (ERROR:
Database 'C:My DocumentsVisual Studio 2005Projectsabcabcabc.mdf' cannot be opened due to inaccessible files or insufficient memory or disk space. See the SQL Server errorlog for details. (.Net SqlClient Data Provider) )
If i connect to the abc.mdf first in SSMSE, then run the VB program afterwards, it gives me the error on this line -- sqlConnection1.Open()
I want to be able to access the abc.mdf database with both SSMSE and VB at the same time. Could anyone help me on this ?
Thanks very much !
apple
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May 20, 2004
How to connect to SQL server database from Oracle 9ias Application Server (9.0.3) & Test & Verify the Connection. Is it posible.
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Apr 3, 2008
Hi,
I am having a problem connecting my .net applications from the application server to the database server. When I run the application from my windows xp (sp2) box it works fine. When I try to connect via SQL Management Studio to the database server from the application server I get the same error.
Here is the error:
System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Here is the Environment:
App Server:
Windows Server 2003 Standard Edition
Inside Company's Firewall/ Network
Database Server:
Windows Server 2000 Advanced Edition
SQL Server 2000 SP4
Remote Connections to the Server is checked
Enable Protocols: Named Pipes & TCP/IP
TCP/IP Port: 1402 (I don't know why it isn't the default of 1433)
The db server is sitting out side the Company's firewall (don't ask me why). I can access it fine from inside the firewall on my XP box but not from windows server 2003. There is a web server outside the our network that also connects to the db server with no problem and that is running Windows Server 2003 Web Edition.
I can ping the db server from the app server using the IP address.
I tried using the IP address and the port 1402 in my connection string but that didn't work from any machine (XP and Server).
I imagine the issue is somehow related to the company's firewall but why would it only block Windows Server 2003 and not XP?
What do I tell the network admin to change?
Any help would be appreciated.
Thanks,
Oran
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May 30, 2001
Hi guys.
We have an external webserver/sqlbox not on domain network and internal on domain.
I need to register both servers or need to do a linked server between two.
There is something i found in Multi protocol. Will somebody explain the whole process.
If i need to change the port settings in SQL, is that just the Client neetwork utility I should change or should i run the setup.
Any input appreciated.....
:-)
-MAK
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Dec 1, 2004
Hi there!
I'm a bit new to all this, so please bear with me! :)
I've got a webserver in our DMZ and I'm trying to create an ODBC connection from that server to a db server within our firewall. When I try and connect, the following message appears:
Connection failed:
SQLState: '01000'
SQL Server Error: 10060
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionOpen (Connect()),
Connection failed:
SQL State: '08001'
SQL Server Error: 17
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]SQL Server does not exist or access denied
I'm at a bit of a loss as to what's going on, as we have an application on the webserver that connects to another SQL DB server within our firewall with no problem!
webserver:
OS - win2000 standard server sp4
db server:
OS - WinNT 4.0
SQL - 7.0
If anyone can help, it would be much appreciated!!
Cheers,
Ewan :)
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Jul 20, 2005
My ISP recently had me reset my TCP/IP stack. After that, Norton PersonalFirewall prompted me twice that SQL Server was trying to access theInternet. Both times I responded to allow it to and to always use thataction. Now I am not able to use SQL Server with NPF enabled. If I disableNPF, SQL Server works fine.I am using the desktop edition of SQL Server 7, on a standalone PC, notconnected to a server. I have been using SQL Server and NPF together forover a year. Now, since my TCP/IP stack was reset, NPF interferes with SQLServer.Anyone have any experience with this?Thanks,Neil
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Jul 20, 2005
Hi all, I have some DTS packages that are used to import /export data to aSQL box located outside in a DMZ behind a firewall.We need to open up a port in the firewall so that the Internal Server cancommunicate (Execute DTS packages against) with the SQL box located outsidethe DMZ.How do I find out what Port we need to open so that the Internal SQL box cancommunicate with the external SQL box?Thanks in advanceMark
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May 6, 2008
Hello,
I have created a new dtsx package with a FTP Task inside.
On this task I am able to configure the user, password server address etc...
Everything is working correctly until I try to connect to a FTP in DMZ.
Of course I have a firewall to access to it...So my question is how to bypass proxy settings in the FTP task component.
I do it in FileZilla so how can I do the same thing in ftp task?
Regards
Stephane
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Apr 17, 2007
Hello,
I am trying to connect a web app to a SQL 2005 that is behind a firewall.
The challenge is this, the SQL is behind a firewall and the webserver is at a different location. From my desktop development environment, I connect through a VPN first and then can point to the internal IP of the DB server. This works fine as long as the VPN is connected.
But how do I do this from a hosted web application that is not on my local machine or using my VPN?
Is there some sort of tunneling Connection that I can use within code?
thanks
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Nov 6, 2004
When I changed to software Firewall, I got lots of problems running asp.net and Dnn.
Unfortunatly zonelabs does not support me, cause ZA pro don't "officially" support servers. But speaking to their support, and via email, I am told several of their customers run ZA pro under winXP, with IIS and SQL running.(ZA pro 5.1.033.000)
Unfortunatly I have not been able to get them to read my thead on Zonelabs support forum.
I bought ZA pro after talking on with a salesrep, and was told IIS and SQL is a breeze to config, and if I run into problems their forum or support would help me. Yeah right. So at the time beeing I am stucked.
I first started out installing, and making the most obvious changes, and got everthing working I thought. But when trying to log into a dnn project in my root, nothing happend.
So, I knew the firewall didn't play along. Then I gave SQL server rights, 4 green checkmarks in config. Now I could log in. But installing new modules was still a problem. I tried to add "formcreator for dnn" by Snow to a tab. But I got a msg saying a critical error accourd. "SQL server doed not excist or access denied". This is what I have done so far:
1. In Privacy Settings Cookie Control, Ad Blocking and Mobile Code Control are all set to Off
2. Added localhost: Clicked Firewall >> Zones >> Add >> Host/Site name OR IP Address: 127.0.0.1
3. Made sure IIS, and SQL Server have full access: Click Program Control >> Programs.
So as you see, the firewall is still not allowing the application (dnn application) to connect to the SQL server. Surely their must be a way to fix this?
Anyone that has managed to get ZAP to work correct along with IIS and SQL?
clue
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Mar 4, 2000
OK, here's the situation. I have set up my two server to use MultiProtocol as their net-lib and locked it down to use only port 1433 instead of "port hopping". I have set up my firewall to allow the traffic on port 1433 between the 2 machines and I added a hosts entry at each machine for the partner machine. With this set up I can do everything that I need to and have not found any limitations until now.
THE PROBLEM: I publish a db (on either machine) and enable immediate updating subscriptions. I then push this db to the other machine. Everything works fine and updates on the publishing db are replicated to the subscribing databases without any problems. However, when I try to do an update on the subscribing database I get an error that "transaction error, ODBC driver [SQLOLEDB] does not support distributed transactions..." No matter which machine I configure as the publisher or the subscriber this error always occurs when trying to update the subscriber. Also, as soon as I disable the firewall the error goes away and updates go back and forth like normal. I've double checked and all packets go through the firewall on port 1433 and none are refused. Not sure where to go from here and any help would be appreciated....
THANKS,
- Matt K.
kanema@saic.com
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Dec 23, 2000
Hi,
Need to set up replication between a server in our corporate network and another outside our network. Both are NT 4 servers running SQL7 and I am instructed to configure merge replication on both ends. My questions are: Is it possible to achieve this by running tcpip(read somewhere that I would need to run MPR to load the net libraries) and configuring the firewall to allow tcp/ip on the ports we are running SQL on between the two servers?
Please help as this is very urgent.
Regards
Kunta
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Jan 6, 2000
I am trying to connect to SQL Server 7.0 from a web server. The web server is outside our firewall, SQL Server is inside the firewall. I want to use a multiprotocol connection so I can encrypt it. We have port 1433 open on our firewall for TCP/IP from SQL Server. When I connect with just TCP/IP it works. When I switch to multiprotocol it fails with error code 1701. I can connect to the SQL Server box from inside the firewall using multiprotocol.
My theory is that when you use multiprotocol you are using another port than 1433. Is this the answer?
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