I tried to create a client side named pipe program connected to server piped program but it encountered to have this problem.
"Access to the path is denied"
clientpipe = New System.IO.Pipes.NamedPipeClientStream
("192.168.1.1","soohhead",Pipes.PipeDirection.InOut, Pipes.PipeOptions.None)
clientpipe.connect()
-When I tried to modify the code as below, It will return me another error message as
"Attempted to perform an unathorized operation".
clientpipe = New System.IO.Pipes.NamedPipeClientStream
("192.168.1.1","soohhead",Pipes.PipeDirection.InOut, Pipes.PipeOptions.None)
clientpipe.connect()
ps = New PipeSecurity()
ps = clientpipe.GetAccessControl()
ps.AddAccessRule(New PipeAccessRule("NT AUTHORITY\NETWORK SERVICE",
PipeAccessRights.Write, AccessControlType.Allow))
clientpipe.SetAccessControl(ps)
In return My client pipe still unable to connect to server pipe program, Appreciate thanks to anyone's help.
I'm pulling your solution out of the question and placing it here for future assistance to other users.
Server Pipe:
ps = New System.IO.Pipes.PipeSecurity
ps.AddAccessRule(New System.IO.Pipes.PipeAccessRule("Users",
System.IO.Pipes.PipeAccessRights.FullControl, AccessControlType.Allow))
ps.AddAccessRule(New System.IO.Pipes.PipeAccessRule("CREATOR OWNER",
System.IO.Pipes.PipeAccessRights.FullControl, AccessControlType.Allow))
ps.AddAccessRule(New System.IO.Pipes.PipeAccessRule("SYSTEM",
System.IO.Pipes.PipeAccessRights.FullControl, AccessControlType.Allow))
serverpipe = New System.IO.Pipes.NamedPipeServerStream("soohhead",
Pipes.PipeDirection.InOut, 10, Pipes.PipeTransmissionMode.Message,
Pipes.PipeOptions.None, 4024, 4024, ps)
Client Pipe:
clientpipe = New System.IO.Pipes.NamedPipeClientStream
("192.168.1.1","soohhead",Pipes.PipeDirection.InOut, Pipes.PipeOptions.None)
clientpipe.connect()
Related
sorry to bother you guys,
I have a Thrift server program in c++. Whenever a client connects to me, the handshake succeeds, as does the first Thrift command sent, but the second command sent fails with the error "session id context uninitialized".
The client's next command re-establishes the connection and succeeds, but the fourth will fail again with "session id context uninitialized".
The exact error is
TConnectedClient died: SSL_accept: session id context uninitialized (SSL_error_code = 1)
TConnectedClient input close failed: session id context uninitialized (SSL_error_code = 1)
TConnectedClient output close failed: session id context uninitialized (SSL_error_code = 1)
every 'even' command
My problem seems similar to THIS, but I can't seem to figure out how to change the context of my session to set the SSL_OP_NO_TICKET flag.
I tried adding a ServerEventHandler, but I don't think I can change the serverContext that is present there.
Can anyone help me?
Below is the section of main() where I declare and start the server. If more information is needed, please ask. (sorry if I typo-ed any code, I had to retype by hand it here)
::apache::thrift::stdcxx::shared_ptr<TProtocolFactory> protocolFactory(new TBinaryProtocolFactoryT<TBufferBase>());
::apache::thrift::stdcxx::shared_ptr<My_svrHandler> handler(new My_svrHandler());
::apache::thrift::stdcxx::shared_ptr<TProcessor> processor(new My_svrProcessor(handler));
::apache::thrft::stdcxx::shared_ptr<TSSLSocketFactory> sslSocketFactory(new TSSLSocketFactory(SSL::TLSv1_2));
sslSocketFactory->loadCertificate(certLocation);
sslSocketFactory->loadPrivateKey(keyLocation);
sslSocketFactory->loadTrustedCertificates(CALocation);
sslSocketFactory->authenticate(true);
::apache::thrift::stdcxx::shared_ptr<TServerSocket> serverSocket(new TSSLServerSocket(9090, sslSocketFactory));
::apache::thrift::stdcxx::shared_ptr<TTransportFactory> transportFactory(new TBufferedTransportFactory());
::apache::thrift::stdcxx::shared_ptr<apache::thrift::server::Tserver> server;
::apache::thrift::stdcxx::shared_ptr<ThreadManager> threadManager = ThreadManager::newSimpleThreadManager(10);
::apache::thrift::stdcxx::shared_ptr<PlatformThreadFactory> threadFactory = ::apache::thrift::stdcxx::shared_ptr<PlatformThreadFactory>(new PlatformThreadFactory());
threadManager->threadFactory(threadFactory);
threadManager->start();
server.reset(new TThreadedPoolServer(processor, serverSocket, transportFactory, protocolFactory, threadmanager));
if(server.get() != NULL)
{
apache::thrift::concurrency::PlatformThreadFactory factory;
::apache::thrift::stdcxx::shared_ptr<apache::thrift::concurrency::Runnable> serverThreadRunner(server);
::apache::thrift::stdcxx::shared_ptr<apache::thrift::concurrency::Thread> thread = factory.newThread(serverThreadRunner);
signal(SIGPIPE, SIG_IGN);
thread->start();
while(1){}
server->stop();
thread->join();
server.reset();
}
I have a PowerQuery connected to DB2 Data Source, but because of some kind of load balancing the DB Server changes periodically (ip also changes), There is no way for me to know beforehand which data source (IP), I should use until I try it and see that it errors out, then I have to use the other one, I googled for error handling in PowerQuery and found some examples of error handling but this examples did not apply to my case, most of them handled errors AFTER the connection was made or were preventing errors on missing columns or files not found, I tried to adjust the examples to my case but was not able to.
What I want is just try one IP and if it fails then use the other one.
let
//fParametros("ParamQuery",1) is the "standard" Server/Ip address (provider=IBMDADB2.IBMDBCL1;data source=CP3;location=pn8us7ldbcp3.us.mycompany.com:5912)
dbSource = fParametros("ParamQuery",1),
//fParametros("ParamQuery",5) is the "Alternate" Server/Ip address (provider=IBMDADB2.IBMDBCL1;data source=CP3;location=pn8us7ldbcp3h.us.mycompany.com:5912)
AltdbSource = fParametros("ParamQuery",5),
pOrden = Text.From(fParametros("ParamQuery",2)),
//Create the query
dbQuery = "SELECT SAPCP3.vbak.VBELN SO , SAPCP3.vbap.posnr PoLine , SAPCP3.vbep.ETENR Sch_Line , SAPCP3.vbap.matnr Part_Number,SAPCP3.makt.maktx Description,SAPCP3.vbap.kwmeng Qty ,SAPCP3.vbep.BMENG Conf_qty ,SAPCP3.vbap.vrkme UOM ,SAPCP3.vbap.netpr SalesPrice ,SAPCP3.vbap.kpein LotSize FROM SAPCP3.vbak JOIN SAPCP3.vbap ON SAPCP3.VBAp.VBELN = SAPCP3.VBAK.VBELN JOIN SAPCP3.vbep ON SAPCP3.vbep.vbeln = SAPCP3.vbak.vbeln AND SAPCP3.vbap.posnr = SAPCP3.vbep.posnr JOIN sapcp3.makt ON sapcp3.vbap.matnr=sapcp3.makt.matnr WHERE SAPCP3.VBAK.VKORG = '4000' AND (SAPCP3.vbep.edatu >= '20190701') AND SAPCP3.vbak.VBELN ="& pOrden & " ORDER BY SAPCP3.vbak.VBELN",
//Get the data
Source = OleDb.DataSource(dbSource, [Query=dbQuery]),
//Failed Attempt to handle the error:
TestForError= try Source,
//next line does not work, I get error saying Source is already defined/declared
Source = if TestForError[HasError] then OleDb.DataSource(AltdbSource, [Query=dbQuery]) else OleDb.DataSource(dbSource, [Query=dbQuery])
in
Source
I also Tried the following:
.
.
.
//Get the data
Source = OleDb.DataSource(dbSource, [Query=dbQuery]),
//Failed Attempt to handle the error:
TestForError= try Source,
Output = if TestForError[HasError] then OleDb.DataSource(AltdbSource, [Query=dbQuery]) else OleDb.DataSource(dbSource, [Query=dbQuery])
in
Output
//This last part works if the dbSource is correct, but if it is not it doesnt catch the error and gives me the Connection error shown below:
DataSource.Error: OLE DB: SQL30081N A communication error has been detected. Communication protocol being used: "TCP/IP". Communication API being used: "SOCKETS". Location where the error was detected: "172.16.0.1". Communication function detecting the error: "connect". Protocol specific error code(s): "10061", "", "". SQLSTATE=08001
Details:
DataSourceKind=OleDb
DataSourcePath=data source=CP3;location=pn8us7ldbcp3.us.mycompany.com:5912;provider=IBMDADB2.IBMDBCL1
Message= SQL30081N A communication error has been detected. Communication protocol being used: "TCP/IP". Communication API being used: "SOCKETS". Location where the error was detected: "172.16.0.1". Communication function detecting the error: "connect". Protocol specific error code(s): "10061", "", "". SQLSTATE=08001
ErrorCode=-2147467259
I want to connect to dbSource (172.16.0.1) and if it is not possible then connect to AltdbSource (172.16.0.2)
Currently I have 2 identical excel sheeets and user needs to open one or the other if he gets the connection error, I want it to change automatically.
I'm guessing that TestForError = try OleDb.DataSource(BadSource) isn't working because OleDb.DataSource(...) returns a table value than only produces an error when trying to enumerate rows.
What if you change TestForError to drill into the first row if it exists:
TestForError= try Source{0}?,
If that still doesn't work, next try indexing into a table cell in the first row.
When debugging in SQL, I get the following exception :-
System.Data.SqlClient.SqlException: '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)'
When I then set next statement and run the statement again, it works. It also works when I'm running the application standalone as a compiled application. Anyone know why this causes an error only when in debug.
The connection is to a remote database sited off-site, not to the local database.
Data Source=xx.xx.xx.xx;Initial Catalog=TheDatabase;User ID=MasterUser;Password=AsIfIMGoingToPostThat
Your help, appreciated.
This is my function to connect...
Public Sub New(ByVal strConnect As String)
Try
dbConnect = New System.Data.SqlClient.SqlConnection(strConnect)
dbConnect.Open()
objParams = New List(Of SqlClient.SqlParameter)
m_bIsConnected = True
Catch exc As Exception
m_bIsConnected = False
Finally
End Try
It looks like your local connection doesn't default to named pipes but your compiled version will try (or is allowed to use TCP/IP). The error shows that it may be expecting named pipes.
Try putting this "np:" in the Data Source in your connection string:
Data Source=np:xx.xx.xx.xx; ...
To get it to connect first time, it looks like I need to add "Network Library=DBMSSOCN;" to connect in debug. t.b.h., Have no idea why...
Are there any examples on the net how to process errors when downloading data from Interactive Brokers using the IBrokers package? I've had a look at the package details and eWrapper and twsCALLBACK seem to handle this but I can't get them to work. For example the code below produces an error and R hangs, the error msg isn't processed. Thanks for any suggestions.
contract <- twsContract(0,
symbol="SPI",
sectype="XXX", #bad sectype
exch="SNFE",
primary="",
expiry= "20181220",
strike="",
currency="AUD",
right="",
local="",
multiplier = "25",
combo_legs_desc = "",
comboleg = "",
include_expired = "",
secIdType = "",
secId = "")
tws <- twsConnect()
data <- reqMktData(tws,contract,snapshot = TRUE)
You should append a "Disconnect" command to you code. Otherwise your program try to build to connections on the same port, that's not possible and it will not terminate.
I don't know the IBroker package very well, please check the command for disconnecting and append it to your code. Refresh your command line and rerun your code.
In addition, connect to IB Gateway instead of TWS by using that port number (check API settings of your IB Gateway application). In the settings choose a detailed Log.
Run your code again (after changing port number) and send your log file. Then I will try to help more. It's hard to help without any error message.
I m working on script which will let me know running status (running/stopped) of desired application on remote desktop (windows server)
my code is doing fine until I have logged in on remote desktop (using "Remote Desktop Connection").. if I close it without logging off.. it continue work fine.. but as I log off from there .. it just stop working .. here one thing I note.. even after logging off when I run command on ssh client... it gives some successful acknowledgement
I do get desired output when remote desktop connection for that server is on from any other computer in network
ALL FOWWLOWING CODE AND OUTPUT IS WHEN I LOG OFF FROM REMOTE DESKTOP CONNECTION
string runCommand = "wmic process call create "TestClient.exe";
SshCommand command = ssh.RunCommand(runCommand);
string myData = command.Result;
after this myData will have
Executing (Win32_Process)->Create()
Method execution successful.
Out Parameters:
instance of __PARAMETERS
{
ProcessId = [some pid in numeric]; //when I be logged off, this field would not be there.. (case of problem)
ReturnValue = [some numeric];
};
but after doing this when I check status of test client by following code..
string rumCommand = "wmic process where "TestClient.exe" get ProcessID, ExecutablePath";
SshCommand command = ssh.RunCommand(rumCommand);
string myData = command.Result;
but there will not any running app listed in myData !!!
Connecting ssh client as per follow..
string pass = "password";
PasswordAuthenticationMethod PasswordConnection = new PasswordAuthenticationMethod("user_name", pass);
KeyboardInteractiveAuthenticationMethod KeyboardInteractive = new KeyboardInteractiveAuthenticationMethod("user_name");
ConnectionInfo connectionInfo = new ConnectionInfo(serverIP, port, "user_name", PasswordConnection, KeyboardInteractive);
SshClient ssh = new SshClient(connectionInfo);
if (!ssh.IsConnected)
ssh.Connect();
yeh, It was very simple problem to solve, but was in corner as well. As I had made test client (which I was testing whether they r running or not) running through task scheduler and forgot to tick on checkbox which suggest that it will be running even after Logoff.. checking this checkbox.. All Fine