I'm trying to use SSH.NET in C# code to access a database over SSH. I generate a RSA key pair and put the private key on an UNC shared drive. The pathname string looks like below. When I kick off the code trying to connect, I get a "Could not find a part of the path" error.
string privatekeypathname = #"\\server\My path\private_key.ppk";
I think using an UNC path is the issue. Is there any way to resolve the issue? Thanks.
Edit: I tried using a mapped drive. Same error. My Code looks like:
PrivateKeyFile key = new PrivateKeyFile(privatekeypathname, MyPassPhrase);
ConnectionInfo connectionInfo = new ConnectionInfo(
MySSHHost,
MySSHPort,
MySSHUser,
new PrivateKeyAuthenticationMethod(MySSHUser, key));
sshClient = new SshClient(connectionInfo);
sshClient.Connect();
Note: I've tried a pathname that looks like: #"C:\my folder\private_key.ppk" and it works, so obviously the space in the string isn't the issue. Also, although I don't think permission is the issue, I've tried running the code as administrator and got the same error. I can manually access the shared drive using Windows Explorer. I don't know what else I can try to verify this end.
Related
I want to get the path of an existing folder SeleniumTestData inside the solution.
Why? My selenium tests should create at start of the test, temporary folder which are being ignored in Git, so each of my colleagues has their own TestData folders for their own TestExecutions on their machine (Like Save/Load Cookies) and dont pull TestData from other colleagues.
The folder where i want to create other folder by code is named SeleniumTestData folder and is inside:
..\source\repos\CoffeeTalk\src\Tests
I cant hardcore the path, as i'm facing here 2 problems:
Tests are being ran in Windows and Docker (Linux)
Co-Workers are saving the solution in different windows directories
Now i need a general solution which will work in any of these cases.
I already tried: var currentDirectory = new DirectoryInfo(Directory.GetCurrentDirectory());
which returned: D:\source\repos\CoffeeTalk\src\Tests\Web\CoffeeTalk.Client.Selenium.Tests\bin\Debug\net6.0
and then tried to navigate back by executing the codeline currentDirectory?.Parent about 5-6 times. But its then again different in Linux.
Now im looking for a clean way. I suppose the first way i did it was not wrong by getting the CurrentDirectory and navigate back.
I already searched for solutions using stackoverflow, google. Either the solutions are outdated or im not getting the result im expecting.
Here i have the method which creates the folder, but im struggling with the GetFolderPath method.
public static void CreateFolder(string folderName, string newFolderName)
{
var folderPath = GetFolderPath(folderName);
var pathCombined = Path.Combine(folderPath, newFolderName);
var folderExists = Directory.Exists(pathCombined);
if (folderExists) return;
Directory.CreateDirectory(pathCombined);
}
Directory.GetCurrentDirectory isn't the directory with your executable file. It's something else (I don't know) that by the way depends on the OS. You should use this instead:
using System.Reflection;
// ...
string exeDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
And then go up the folders hierarchy as you want:
string neededFolder = new DirectoryInfo(exeDirectory).Parent.Parent.Parent.ToString(); // Or more "Parent" calls
As far as I know, it works on different OSs.
I was trying to find a folder under a web applicaiton in IIS using the follwing code and I met with the following error:
AccessViolationException: Attempted to read or write protected memory.
The code I tried goes like below:
DirectoryEntry entry2 = new DirectoryEntry(string.Format("IIS://{0}/W3SVC/{1}/Root/{2}", serverName, siteID, parentVirDirName));
entry2.RefreshCache();
DirectoryEntry entry3 = entry2.Children.Find(folderToSearch);
The error happens on the last line of the code above.
Any help or clue to get out of this is highly appreciated
I'm new to sftp and i'm trying to get a c# program to send a file via sftp to a remote server not under my control.
Using code like:
using (var sftp = new SftpClient(FTPAddress, FTPName, FTPPassword))
{
ConnectionInfo myCI = sftp.ConnectionInfo;
sftp.Connect(); // <<<< Exception on connect
sftp.UploadFile(sftp_ms, FileName,true);
sftp.Disconnect();
}
I receive a "Bad packet length" exception.
Google searching reveals that a bad packet length is likely to be a mismatch in encryption formats but I don't know how to resolve that.
The specification i've received from the client is:
Keys must be in Open SSH version 2 format RSA format
I don't know how to do this. A previous SO question How to resolve a 'Bad packet length' error in SSH.NET? has a link to sshnet.codeplex discussion where removing the encryption keys that you don't want solved the issue for that poster.
I can see 16 entries in ssh.net's connectioninfo class but none of them state open SSH version 2 RSA though one of them may very well be (i've tried googling).
I have tried the ip, name and password i've been given with filezilla and I connect no problems; so filezilla somehow uses the correct encryption; I don't know how to tell what it's using.
Help ?
Andrew
You've got two different problems here. If you're getting the bad packet length problem, then you probably have to follow the guide in the ssh.net Codeplex discussion to resolve the negotiation. This should resolve the establishing of the initial connection.
If you're required to use an ssh private key for connection, then you have to use one of the constructors that takes an array of PrivateKey objects. One of the constructors for a PrivateKey takes a stream, and you can convert the private key string to the stream using code like:
var privKey = new PrivateKey(new MemoryStream(Encoding.ASCII.getBytes(sshPrivateKeyString)));
var sftpclient = new SftpClient(FTPAddress, FTPName, new PrivateKeyFile[] { privKey });
Other mechanisms are to use an explicit PrivateKeyConnectionInfo instance:
var privKey = new PrivateKey(new MemoryStream(Encoding.ASCII.getBytes(sshPrivateKeyString)));
var privConnInfo = new PrivateKeyConnectionInfo(FTPAddress, FTPName, privKey);
var sftpClient = new SftpClient(privConnInfo);
I'm trying to load tokenGroups from Active Directory but it isn't working once deployed to a Windows Server (2003). I cannot figure out why, since it works fine locally...
Here is my error:
There is no such object on the server.
And here is my code (the sid variable is the current users SecurityIdentifier pulled from HttpContext):
DirectoryEntry userDE = new DirectoryEntry(string.Format("LDAP://<SID={0}>", sid.Value))
userDE.RefreshCache(new[] { "tokenGroups" });
var tokenGroups = userDE.Properties["tokenGroups"] as CollectionBase;
groups = tokenGroups.Cast<byte[]>()
.Select(sid => new SecurityIdentifier(sid, 0)).ToArray();
Any ideas why I would get that error?
UPDATE: The error actually happens on the RefreshCache line
Do you have a valid value for userDE after the constructor call?? Does that user really exist? Or do you need to provide e.g. a server to use in your LDAP path??
The error message No such object on server seems to indicate the user just plain doesn't exist.... (or cannot be found, due to e.g. permissions)
Try this - not sure if that's the problem, but it's worth a try - it should work:
DirectoryEntry userDE = new DirectoryEntry(string.Format("LDAP://<SID={0}>", sid.Value))
userDE.RefreshCache(new string[] { "tokenGroups" });
Try using new string[] instead of just new[].
I am using the following code to fire the iexplore process. This is done in a simple console app.
public static void StartIExplorer()
{
var info = new ProcessStartInfo("iexplore");
info.UseShellExecute = false;
info.RedirectStandardInput = true;
info.RedirectStandardOutput = true;
info.RedirectStandardError = true;
string password = "password";
SecureString securePassword = new SecureString();
for (int i = 0; i < password.Length; i++)
securePassword.AppendChar(Convert.ToChar(password[i]));
info.UserName = "userName";
info.Password = securePassword;
info.Domain = "domain";
try
{
Process.Start(info);
}
catch (System.ComponentModel.Win32Exception ex)
{
Console.WriteLine(ex.Message);
}
}
The above code is throwing the error The system cannot find the file specified. The same code when run without specifying the user credentials works fine. I am not sure why it is throwing this error.
Can someone please explain?
Try to replace your initialization code with:
ProcessStartInfo info
= new ProcessStartInfo(#"C:\Program Files\Internet Explorer\iexplore.exe");
Using non full filepath on Process.Start only works if the file is found in System32 folder.
You can't use a filename like iexplore by itself because the path to internet explorer isn't listed in the PATH environment variable for the system or user.
However any path entered into the PATH environment variable allows you to use just the file name to execute it.
System32 isn't special in this regard as any directory can be added to the PATH variable. Each path is simply delimited by a semi-colon.
For example I have c:\ffmpeg\bin\ and c:\nmap\bin\ in my path environment variable, so I can do things like new ProcessStartInfo("nmap", "-foo") or new ProcessStartInfo("ffplay", "-bar")
The actual PATH variable looks like this on my machine.
%SystemRoot%\system32;C:\FFPlay\bin;C:\nmap\bin;
As you can see you can use other system variables, such as %SystemRoot% to build and construct paths in the environment variable.
So - if you add a path like "%PROGRAMFILES%\Internet Explorer;" to your PATH variable you will be able to use ProcessStartInfo("iexplore");
If you don't want to alter your PATH then simply use a system variable such as %PROGRAMFILES% or %SystemRoot% and then expand it when needed in code. i.e.
string path = Environment.ExpandEnvironmentVariables(
#"%PROGRAMFILES%\Internet Explorer\iexplore.exe");
var info = new ProcessStartInfo(path);
Also, if your PATH's dir is enclosed in quotes, it will work from the command prompt but you'll get the same error message
I.e. this causes an issue with Process.Start() not finding your exe:
PATH="C:\my program\bin";c:\windows\system32
Maybe it helps someone.
I had the same problem, but none of the solutions worked for me, because the message The system cannot find the file specified can be misleading in some special cases.
In my case, I use Notepad++ in combination with the registry redirect for notepad.exe. Unfortunately my path to Notepad++ in the registry was wrong.
So in fact the message The system cannot find the file specified was telling me, that it cannot find the application (Notepad++) associated with the file type(*.txt), not the file itself.
I know it's a bit old and although this question have accepted an answer, but I think its not quite answer.
Assume we want to run a process here C:\Program Files\SomeWhere\SomeProcess.exe.
One way could be to hard code absolute path:
new ProcessStartInfo(#"C:\Program Files\SomeWhere\SomeProcess.exe")
Another way (recommended one) is to use only process name:
new ProcessStartInfo("SomeProcess.exe")
The second way needs the process directory to be registered in Environment Variable Path variable. Make sure to add it in System Variables instead of Current User Variables, this allows your app to access this variable.
You can use the folowing to get the full path to your program like this:
Environment.CurrentDirectory