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POProblem accessing SQL Server from network share after reinstalling SQL Server
 

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  1. POProblem accessing SQL Server from network share after reinstalling SQL Server
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    <p>I have a problem, that is really driving me crazy.</p> <p>First of all I must admit, that most of the work was done by a coworker, who isn't available anymore.</p> <p>Before reinstalling the MSSQL Server rig, the whole thing looked like that:</p> <ul> <li>Someone has developed a little .Net c# program which connects to the SQL Server, that is located on a different network share. Everything worked</li> </ul> <p>We had to reinstall the server (Windows + SQL Server) and since that moment, if the program is run from that network share, I get the following error:</p> <blockquote> <p>"Unhandled Exception: System.Security.SecurityException: Request for the permissi on of type 'System.Data.SqlClient.SqlClientPermission, System.Data, ......"</p> </blockquote> <p>If I run the programm locally from the computer where the shares are located, it works - so I guess all security issues where set right at the SQL Server. But there has to be a problem, because it worked correct before the reinstall.</p> <p>Does this make any sense to someone? Or any ideas how to fix that?</p> <p>Edit: Posted error message below. The program is called by a batch script.</p> <pre><code>C:\Projekte\Tool&gt;\\server\c$\Projekte\Tool\ToolRea der.exe Unhandled Exception: System.Security.SecurityException: Request for the permissi on of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0. 0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089' failed. at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMa rk&amp; stackMark, Boolean isPermSet) at System.Security.PermissionSet.Demand() at System.Data.Common.DbConnectionOptions.DemandPermission() at System.Data.SqlClient.SqlConnection.PermissionDemand() at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection o uterConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection ou terConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at System.Data.Linq.SqlClient.SqlConnectionManager.UseConnection(IConnectionU ser user) at System.Data.Linq.SqlClient.SqlProvider.get_IsSqlCe() at System.Data.Linq.SqlClient.SqlProvider.InitializeProviderMode() at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider .Execute(Expression query) at System.Data.Linq.DataQuery`1.System.Collections.Generic.IEnumerable&lt;T&gt;.Get Enumerator() at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at System.Data.Linq.Table`1.DeleteAllOnSubmit[TSubEntity](IEnumerable`1 entit ies) at ToolReader.DataAccessLayer.ToolInfoDAO.deleteAllEntries( ) at ToolReader.ToolReader.Main(String[] args) The action that failed was: Demand The type of the first permission that failed was: System.Data.SqlClient.SqlClientPermission The first permission that failed was: &lt;IPermission class="System.Data.SqlClient.SqlClientPermission, System.Data, Vers ion=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" AllowBlankPassword="False"&gt; &lt;add ConnectionString="Data Source=sqlserver\SQLEXPRESS;Initial Catalog=ToolDB;Integrated Security=True" KeyRestrictions="" KeyRestrictionBehavior="AllowOnly"/&gt; &lt;/IPermission&gt; The demand was for: &lt;PermissionSet class="System.Security.PermissionSet" version="1"&gt; &lt;IPermission class="System.Data.SqlClient.SqlClientPermission, System.Data, Vers ion=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" AllowBlankPassword="False"&gt; &lt;add ConnectionString="Data Source=sqlserver\SQLEXPRESS;Initial Catalog=ToolDB;Integrated Security=True" KeyRestrictions="" KeyRestrictionBehavior="AllowOnly"/&gt; &lt;/IPermission&gt; &lt;/PermissionSet&gt; The granted set of the failing assembly was: &lt;PermissionSet class="System.Security.PermissionSet" version="1"&gt; &lt;IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Read="USERNAME"/&gt; &lt;IPermission class="System.Security.Permissions.FileDialogPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Unrestricted="true"/&gt; &lt;IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Vers ion=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Read="\\server\C$\Projekte\Tool\" PathDiscovery="\\server\C$\Projekte\Tool\"/&gt; &lt;IPermission class="System.Security.Permissions.IsolatedStorageFilePermission, m scorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Allowed="AssemblyIsolationByUser" UserQuota="9223372036854775807" Expiry="9223372036854775807" Permanent="True"/&gt; &lt;IPermission class="System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Flags="ReflectionEmit"/&gt; &lt;IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Ve rsion=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Flags="Assertion, Execution, BindingRedirects"/&gt; &lt;IPermission class="System.Security.Permissions.UIPermission, mscorlib, Version= 2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Unrestricted="true"/&gt; &lt;IPermission class="System.Security.Permissions.UrlIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Url="file://server/c$/Projekte/Tool/ToolReader.exe"/&gt; &lt;IPermission class="System.Security.Permissions.ZoneIdentityPermission, mscorlib , Version=2.0.0.0, Culture=neutral, PublicKeyToken=a76a5c5b1932e089" version="1" Zone="Intranet"/&gt; &lt;IPermission class="System.Net.DnsPermission, System, Version=2.0.0.0, Culture=n eutral, PublicKeyToken=a76a5c5b1932e089" version="1" Unrestricted="true"/&gt; &lt;IPermission class="System.Drawing.Printing.PrintingPermission, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" version="1" Level="DefaultPrinting"/&gt; &lt;/PermissionSet&gt; The assembly or AppDomain that failed was: ToolReader, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null The method that caused the failure was: Void deleteAllEntries() The Zone of the assembly that failed was: Intranet The Url of the assembly that failed was: file://server/c$/Projekte/Tool/ToolReader.exe </code></pre>
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    1. USpowerbar
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    1. COPlease post the complete error message (by editing your message, or commenting here) - that will really help us determine the cause of the problem. In a nutshell this is either a SQL Server problem or (more likely) an issue with the way the C# program is configured: by default it's not possible to run C# programs from network shares.
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      1. POProblem accessing SQL Server from network share after reinstalling SQL Server
      1. USJeremy McGee
 

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