从另一个系统访问命名管道时访问被拒绝
我有一个命名管道，它工作正常，当我使用在我的系统上运行的客户端访问它时，
客户端尝试使用以下代码打开文件：
LPTSTR lpszPipename = TEXT("\\\\smyServerName\\pipe\\iPipe01");
hPipe = CreateFile(
lpszPipename, // pipe name
GENERIC_READ | // read and write access
GENERIC_WRITE,
0, // no sharing
NULL, // default security attributes
OPEN_EXISTING, // opens existing pipe
0, // default attributes
NULL);
if (hPipe != INVALID_HANDLE_VALUE)
break;
// Exit if an error other than ERROR_PIPE_BUSY occurs.
if (GetLastError() != ERROR_PIPE_BUSY)
{
_tprintf( TEXT("Could not open pipe. GLE=%d\n"), GetLastError() );
return -1;
}
在创建命名管道时，我使用了
lpszPipename = TEXT("\\\\.\\pipe\\iPipe01");
而不是 myServerName我使用了.（点）。当我从另一个系统运行客户端时，我收到 GLE 5（访问被拒绝）。
I have a Named Pipe and It Works Fine While I access it using a Client which runs on My System
The Client tries to open the File using following code:
LPTSTR lpszPipename = TEXT("\\\\smyServerName\\pipe\\iPipe01");
hPipe = CreateFile(
lpszPipename, // pipe name
GENERIC_READ | // read and write access
GENERIC_WRITE,
0, // no sharing
NULL, // default security attributes
OPEN_EXISTING, // opens existing pipe
0, // default attributes
NULL);
if (hPipe != INVALID_HANDLE_VALUE)
break;
// Exit if an error other than ERROR_PIPE_BUSY occurs.
if (GetLastError() != ERROR_PIPE_BUSY)
{
_tprintf( TEXT("Could not open pipe. GLE=%d\n"), GetLastError() );
return -1;
}
While Creating the Named Pipe I have used
lpszPipename = TEXT("\\\\.\\pipe\\iPipe01");
Instead of myServerName I have used .(Dot). I get GLE 5 (Access denied) while I run the client from another system.
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首先要做的事情 - 检查您的权限和防火墙。几乎总是，当某些东西可以在本地运行但不能在网络上运行时，那就是权限问题。
（这个问题出现的次数我都数不过来了！）
First things first - check your permissions and firewall. Almost always, when something works locally but not on the network, it's permissions.
(Had this problem more times than I can count!)
AFAIR Windows Vista 中匿名访问命名管道的安全性发生了变化。
当您想从匿名帐户打开它（具有写访问权限）时，您可能必须按照 此处 。
AFAIR there was a change of security of anonymous access to named pipes in Windows Vista.
When you want to open it (with write access) from the anonymous account, you may have to change the pipe's security attributes as described here.