Uploading file to a web server in QT - qt

I need to upload a file using ftp or http. I checked downloading from servers like ftp.qt.nokia.com. where download was successful[even though the file(s) downloaded was broken but with almost same size as on Web server]. I tried to upload a file to servers like qt.nokia.com,ftp.trolltech.com. Doing so When I used http, I got an html doc as a response with error count 0,but error string as unkown error. When I used ftp, connection was established, logged in but didn't close connection and again error string unkown error. My point is how can I know that whether my file is uploaded to a server successfully? Can I check it on my own system by setting up a server(for ex: Apache Tomcat server).

Set up a local FTP or HTTP server, you should not rely on any server you don't have full control over. A virtual machine is the probably the most hassle-free solution.

Related

Receiving Invalid Signature - SFTP

Our file transfer automation software is connecting to an external SFTP server to download files. It's connecting using Putty's command line tool PSFTP. When it kicks off at it's scheduled time, an error results. The error is:
Remote working directory is /directory
lcd: unable to change directory: Invalid Signature.
Using username "username".
Pre-authentication banner message from server:
| IM CCaaS FTP server
End of banner message from server
When I manually FTP to the server, I can log in with no issue. I then re-run the job and it completes successfully. I've googled this and found articles on key exchanges with similar errors, but this connection isn't using private/public keys. I cut over the application to a new Windows 2016 server on September 21st. There have been some successful transfers. I've also read the version of PSFTP may be the issue (0.73), but I would have expected consistent issues connecting. It seems sporadic. I'm not sure if the issue is on my end or at the destination. Any thoughts?
This is not SFTP problem. You have problem when changing a local working directory (using lcd command in the sftp client).
So this probably covers the problem:
System error 2148073478, extended error, or Invalid Signature error message on SMB connections in Windows Server 2012 or Windows 8.

Requested action aborted: Access violation at address 005F6DB2 in module '***.exe'. Read of address 00000000

I am using Apache Jmeter to send FTP load on a Server. After setting up the FTP request on specific IP and port, I get this error:
Requested action aborted: Access violation at address 005F6DB2 in module '***.exe'. Read of address 00000000
I know that I have all the access and I don't know why a module can block me, although I know that software (***.exe) is not blocking my ports. What is the problem?
Here is the attached Wireshark screenshot from the server when sending the clients request, the red line is the problem and it occurs in different places each time I run the test.
The problem doesn't seem to be related to JMeter
Try uploading file(s) using "normal" FTP client like FileZilla or WinSCP.
If the problem persists:
try identifying its cause using Windows Event Viewer
try to trace system calls using i.e. WinDbg
or just raise an issue on your application (FTP component)
If the problem does not occur on "real" FTP clients:
double check that your FTP Request sampler configuration is correct, see Load Testing FTP and SFTP Servers Using JMeter guide for details.
try uploading the file to the other, i.e. public FTP server to see if it works
try implementing file upload purely in Groovy using JSR223 Sampler. See FTPClientExample.java for the code you could re-use. Make sure you have the following line in your script:
ftpClient.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true))

EOF while reading packet - connection failed

I use cyberduck for SFTP my website files to the server. Dreamhost is the server.
In setting up a new bookmark in cyberduck I received this error "Connection failed - EOF while reading packet." [end of file]
The website is up and working fine, http://ce-t.org
Initially I thought this error had to do with the connection opening with cyberduck. So I setup a different bookmark to test and was able to do without a problem.
I have also deleted my first attempt to setup and reset up. This did not alter anything.
Now after doing more reading, may be in one of the website files?
As you can see i am a novice.
Help appreciated.
Usually when I run into this issue, its because my pw has expired.
Try SSHing into the server and change/update your pw. After I change it, I can FTP in.
This is 3 years too late for the OP. But I had this error when trying to make an SFTP connection to hosting on a Plesk server and the solution was to:
Enable the 'Access to the server over SSH' setting for the ftp user via the Plesk Control panel.
Of course you might need to contact your hosting service to get this done if you are not managing your own server.
In my case the same error occurred due to a syntax error in the .bashrc file on the remote server.
Also note that the default account setting for an FTP user at Dreamhost might specify an FTP connection. If so, trying to use Cyberduck to connect via SFTP will generate this error message. You can use the Dreamhost control panel to edit the user's record to specify SFTP.
In my case I have used dropbear ssh server.
I replace this server with openssh server, and now i can open the sftp connection without any issues.

Sending files from server to client with ASP.NET

I am developing a C# ASP.NET 4.0 application that will reside on a Windows Server 2003. By mean of accessing this application through a network computer, any user would be able to upload files to the windows server. But also, once these files are stored on server, he/she would be able to copy these files from the windows server to another networked computer.
I have found a way to upload files to a specified location on the server disk,
but now I need to send these files that are on server disk to the client computers.
My question is: Is there any way to send or copy files from server to other client computers (not the one that is accessing the web service) without needing a program recieving those files on the client computers? FTP, WCF, cmd commands, sockets?
Any idea?
If you want users of your webapp to download files, I'd look into an "ashx generic handler." It will allow you to send files back down to clients over HTTP(s).
If you are looking to have remote users, tell your webserver to copy files to other servers ON THE SAME LAN AS THE SERVER, you would write using normal System.IO operations.
Over a LAN, if you have the correct permissions and so on, you can write to a disk on a different machine using File.Copy -- there's nothing special about that.
If we're talking about remote machines over the internet, that's a different story. Something has to be listening whether it's FTP, WCF, DropBox, etc.
If the problem is that it can be painful to get something like WCF to work from a client due to problems like firewall issues under Windows 7, you could take a different route and have the client periodically ping the server looking for new content. To give the server a point of reference, the ping could contain the name or creation date of the most recent file received. The server could reply with a list of new files, and then the client could make several WCF calls, one by one, to pull the content down. This pattern keeps all the client traffic outbound.
You can if you can run the program as an account that has access to that computer. However having this sort of access on your network that would grant access to the outside world to put an unfiltered file on your internal network is just asking to be hacked.
Finally, I decided to install a FileZilla FTP server on each client computer and my page is working very well. But another option is to create a work group in the windows server and put every client computer to work in this work group, so that Windows server have access to the computers in the same work group.
Here are some links that may help to create the work groups:
http://helpdeskgeek.com/networking/cannot-see-other-computers-on-network-in-my-network-places/
http://www.computing.net/answers/windows-2003/server-2003-workgroup-setup-/1004.html

Security sandbox violation when connecting to Socket from flex

I am using a Socket (not xmlSocket) connection between flex applications and the server pushing messages.
Now, when I connect from the local machine to the server everything is working file and running, connection is succesful and I get data back and forth.
When I upload the application (flex) to the server and run it from there, I get a security sandBox violation message.
Note:
1. I do have a crossdomain file with * wildcard both on port and on domain.
2. I created a Securiy.allowDomain("*") as well.
Another thing.
I also created another listener on that same server, listening to connections for port 843 (default) and this service just waited for a connection send policy file to the client and that's it.
That did not solve the problem as well...
That's next?
What should I do to fix the problem?
Appreciate your help.
Avi
The fix for this issue was a dedicated policy file serving server.
I implemented a socket listening to the dedicated port where flex is looking for policy file, once I got a connection and a request I answered right back with the appropriate policy file.
This solved the problem for all users and is working very well for me.
Thanks
did you try Security.loadPolicyFile? Does your server on port ever actually 843 receive policy file requests (that's a tiny XML sent to request the crossdomain policy file)? Does your actual server ever receive policy file requests? What traffic do you get on your server?
greetz
back2dos
.NET
Add crossdomain.xml to your Web server root directory, for example,
C:\inetpub\wwwroot.
Java
Add crossdomain.xml to \ArcGIS\java\web_output, for example,
C:\Program Files\ArcGIS\java\web_output.
http://resources.esri.com/help/9.3/arcgisserver/apis/flex/help/content/deploy_application.htm

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