Coding a FTP-client with a special feature

Hi!
I have a project in school where we are supposed to pick our own project that we code in java, and it has to be involved around networking. So I thought to myself that I should try to code a basic ftp client. This I don't see as a problem since there are a nice API for this, but there is however a glitch that I'm currently researching.
The special feature in my client is segment downloading. Enabling this feature will let loose 3-4 threads that will connect with the original login/pass and split the desired file in 3-4 parts so they all can download it at the same time. Does anyone got hints how I can accomplish this little task of splitting a file?
Any help would be GREATLY appreciated!
//Frank

Thanks for trying to help me with this. I just found a little info that might be useful that seems to proove that it's not a server-side matter: http://www.codeproject.com/KB/IP/MyDownloader.aspx
A little down on that page you can find this:
"Downloads can be segmented because both HTTP and FTP protocols allow the client to specify the start position of the stream. First, MyDownloader performs a request to the server to discover the file size. After that, MyDownloader calculates the segment size as follows:
segment size = min( (file size / number of segments),
minimum allowed segment size )
With the segment size, MyDownloader creates another request specifying the start position of the stream. In this way, we can have multi-requests for the same files running in parallel using multi-threading techniques. This technique speeds up the transfer rate even more if you are using mirrors."
Gotta read up to see if there is a way to apply this thinking in java.

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I'm not using any ftp client with tls currently but let me search...
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k-i-r,
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Issue with Ftp Client / Server using Sockets

I have developed a Ftp Client and a Ftp Server. The client Connects to the Ftp Server and sends files to the ftp server. It is a multi threaded server and can have multiple clients connecting to it.
If a client goes down...the server waits till the client comes up
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Here is the client code
import java.net.*;
import java.net.Socket;
import java.net.InetAddress;
import java.io.*;
import java.io.File;
import java.util.*;
import java.lang.*;
import java.lang.Object;
import javax.crypto.*;
import java.util.regex.*;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.KeySpec;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.File.*;
import java.nio.channels.FileLock;
public class FTPClient {
     public static void main(String[] args) throws Exception
          Timer timer = new Timer("Test Timer");
          timer.scheduleAtFixedRate(new TimerTask()
               private int counter = 0;
                                        public void run() {
                                                                 try     {
                                                                          System.out.println(counter++);
                                                                           Socket soc=new Socket("xxx.x.x.xx",5217);
                                                                           System.out.println("Socket Initialised.");
                                                                           transferfileClient t=new transferfileClient(soc);
                                                                           t.SendFile();
                                                                           System.out.println("run complete.");
                                                                      catch(Exception ex)
                                                       }, 10000, 40000);
     static class transferfileClient
     Socket ClientSoc;
     DataInputStream din;
     DataOutputStream dout;
     BufferedReader br;
     transferfileClient(Socket soc)
          try
               ClientSoc=soc;
               din=new DataInputStream(ClientSoc.getInputStream());
               dout=new DataOutputStream(ClientSoc.getOutputStream());
               br=new BufferedReader(new InputStreamReader(System.in));
          catch(Exception ex)
     //encrypto routine starts
class DesEncrypter {
       Cipher ecipher;
        Cipher dcipher;
        // 8-byte Salt
        byte[] salt = {
            (byte)0xA9, (byte)0x9B, (byte)0xC8, (byte)0x32,
            (byte)0x56, (byte)0x35, (byte)0xE3, (byte)0x03
        // Iteration count
        int iterationCount = 19;
        DesEncrypter(String passPhrase) {
            try {
                         // Create the key
                         KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
                         SecretKey key = SecretKeyFactory.getInstance(
                         "PBEWithMD5AndDES").generateSecret(keySpec);
                         ecipher = Cipher.getInstance(key.getAlgorithm());
                         dcipher = Cipher.getInstance(key.getAlgorithm());
                         // Prepare the parameter to the ciphers
                         AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);
                         // Create the ciphers
                         ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
                         dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
            } catch (java.security.InvalidAlgorithmParameterException e) {
            } catch (java.security.spec.InvalidKeySpecException e) {
            } catch (javax.crypto.NoSuchPaddingException e) {
            } catch (java.security.NoSuchAlgorithmException e) {
            } catch (java.security.InvalidKeyException e) {
        // Buffer used to transport the bytes from one stream to another
        byte[] buf = new byte[1024];
        public void encrypt(InputStream in, OutputStream out) {
            try {
                // Bytes written to out will be encrypted
                out = new CipherOutputStream(out, ecipher);
                // Read in the cleartext bytes and write to out to encrypt
                int numRead = 0;
                while ((numRead = in.read(buf)) >= 0) {
                    out.write(buf, 0, numRead);
                out.close();
            } catch (java.io.IOException e) {
        public void decrypt(InputStream in, OutputStream out) {
            try {
                // Bytes read from in will be decrypted
                in = new CipherInputStream(in, dcipher);
                // Read in the decrypted bytes and write the cleartext to out
                int numRead = 0;
                while ((numRead = in.read(buf)) >= 0) {
                    out.write(buf, 0, numRead);
                out.close();
            } catch (java.io.IOException e) {
}     //encryptor routine ends
     void SendFile() throws Exception
               try
               String directoryName;
               // File object referring to the directory.
               String[] files;        // Array of file names in the directory.
               //directory = new File ( "C:\\FTP\\" ) ;
               File directory1 = new File("C:\\FTP");
                    boolean successmk = directory1.mkdir();
                    if (!successmk) {
                         // Directory creation failed /Already Exists
                    File directory = new File("C:\\FTP\\ftpc");
                    boolean successmk1 = directory.mkdir();
                    if (!successmk1) {
                         // Directory creation failed /Already Exists
               //directory = new File ( "E:\\FTP-encrypted" ) ;
            if (directory.isDirectory() == false) {
                if (directory.exists() == false)
                   System.out.println("There is no such directory!");
                else
                  System.out.println("That file is not a directory.");
            else {
                files = directory.list();
                System.out.println("Files in directory \"" + directory + "\":");
                for (int i = 0; i < files.length; i++)
                         String patternStr = "xml";
                         Pattern pattern = Pattern.compile(patternStr);
                         Matcher matcher = pattern.matcher(files);
                         boolean matchFound = matcher.find();
                                   if (matchFound) {
                                   System.out.println(" " + files[i]);
                                   String filename;
                                   filename=files[i];
                                   File f=new File(directory,filename);
                                   FileLock lock = null;
                                   FileOutputStream fos = new FileOutputStream(f, true);
                                   lock = fos.getChannel().tryLock();
                                             if (lock == null) {
                                             System.out.println(" Failed to get the file lock: means that the file is locked by other instance.");
                                             fos.close();
                                             else
                                                                 InetAddress addr = InetAddress.getLocalHost();
                                                                           // Get IP Address
                                                                           //byte[] ipAddr = addr.getAddress();
                                                                           String ip= addr.toString();
                                                                           // Get hostname
                                                                           //String hostname = addr.getHostName();
                                   System.out.println(" Lock Acquired.");
                                   lock.release();
                                   fos.close();
                                   dout.writeUTF("SEND");
                                        dout.writeUTF(ip);
                                   dout.writeUTF(filename);
          //String msgFromServer=din.readUTF();
DesEncrypter encrypter = new DesEncrypter("My Pass Phrase!");
// Encrypt
          FileInputStream fino=new FileInputStream(f);
          encrypter.encrypt(fino,
new FileOutputStream("ciphertext.txt"));
          fino.close();
          FileInputStream fin=new FileInputStream("ciphertext.txt");
          int ch;
          do
               ch=fin.read();
               dout.writeUTF(String.valueOf(ch));
          while(ch!=-1);
          fin.close();
          String option;
                    option=din.readUTF();
                         if((option.compareTo("Delete")==0))
                              boolean success = (new File("ciphertext.txt")).delete();
                              boolean success1 = f.delete();
                              if (success) {
                              System.out.println("File Sent ...");
                              if (success1) {
                              System.out.println("--File deleted from Client ...");
     for (int j = 0; j < 999999999; j++){}
                                   }//pattermatch loop ends here
else
                         { //System.out.println("   " + "Not an XML file-------->" +files[i]);
for (int jb = 0; jb < 111999999; jb++){}
          }// for loop ends here for files in directory
               }//else loop ends for directory files listing
     System.out.println("sendfile finished...");
     return;
     }               catch(Exception ex)          {ex.printStackTrace();}
     }//sendfile ends here
     public void displayMenu() throws Exception
               System.out.println(" Send File");
                    SendFile();
                    return;
And here is the server code...
import java.net.*;
import java.io.*;
import java.util.*;
import java.util.Date;
import java.text.SimpleDateFormat;
import java.text.DateFormat;
import java.text.Format;
import java.lang.Object;
import java.lang.*;
import javax.crypto.*;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.KeySpec;
public class FTPServer
{     public static void main(String args[]) throws Exception
     {     ServerSocket soc=new ServerSocket(5217);
          System.out.println("FTP Server Started on Port Number 5217");
          while(true)
               System.out.println("Waiting for Connection ...");
               transferfile t=new transferfile(soc.accept());
class transferfile extends Thread
     Socket ClientSoc;
     DataInputStream din;
     DataOutputStream dout;
     transferfile(Socket soc)
     {     try
          {     ClientSoc=soc;
               din=new DataInputStream(ClientSoc.getInputStream());
               dout=new DataOutputStream(ClientSoc.getOutputStream());
               System.out.println("FTP Client Connected ...");
               System.out.println("External IP of Client ..." + ClientSoc.getInetAddress());
               //System.out.println("FTP Client Connected ..." + ClientSoc.getRemoteSocketAddress());
               start();
          catch(Exception ex)
//encrypto routine starts
class DesEncrypter {
        Cipher ecipher;
        Cipher dcipher;
        // 8-byte Salt
        byte[] salt = {
            (byte)0xA9, (byte)0x9B, (byte)0xC8, (byte)0x32,
            (byte)0x56, (byte)0x35, (byte)0xE3, (byte)0x03 };
        // Iteration count
        int iterationCount = 19;
       DesEncrypter(String passPhrase) {
            try {
                // Create the key
                KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
                SecretKey key = SecretKeyFactory.getInstance(
                    "PBEWithMD5AndDES").generateSecret(keySpec);
                ecipher = Cipher.getInstance(key.getAlgorithm());
                dcipher = Cipher.getInstance(key.getAlgorithm());
                // Prepare the parameter to the ciphers
                AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);
                // Create the ciphers
                ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
                dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
            } catch (java.security.InvalidAlgorithmParameterException e) {
            } catch (java.security.spec.InvalidKeySpecException e) {
            } catch (javax.crypto.NoSuchPaddingException e) {
            } catch (java.security.NoSuchAlgorithmException e) {
            } catch (java.security.InvalidKeyException e) {
        // Buffer used to transport the bytes from one stream to another
        byte[] buf = new byte[1024];
        public void encrypt(InputStream in, OutputStream out) {
            try {
                // Bytes written to out will be encrypted
                out = new CipherOutputStream(out, ecipher);
                // Read in the cleartext bytes and write to out to encrypt
                int numRead = 0;
                while ((numRead = in.read(buf)) >= 0) {
                    out.write(buf, 0, numRead);
                out.close();
            } catch (java.io.IOException e) {
        public void decrypt(InputStream in, OutputStream out) {
            try {
                // Bytes read from in will be decrypted
                in = new CipherInputStream(in, dcipher);
                // Read in the decrypted bytes and write the cleartext to out
                int numRead = 0;
                while ((numRead = in.read(buf)) >= 0) {
                    out.write(buf, 0, numRead);
                    //added later on
                    in.close();
                out.close();
            } catch (java.io.IOException e) {
}     //encryptor routine ends
//not implemented right now as we arent using the ftp server to download stuff...can be activated later on if we want
     void SendFile() throws Exception
          String filename=din.readUTF();
          File f=new File(filename);
          if(!f.exists())
               dout.writeUTF("File Not Found");
               return;
          else
          {     dout.writeUTF("READY");
               FileInputStream fin=new FileInputStream(f);
               int ch;
               do
                    ch=fin.read();
                    dout.writeUTF(String.valueOf(ch));
               while(ch!=-1);
               fin.close();
               dout.writeUTF("File Received Successfully");
     String Compare(String filename) throws Exception
                    ///dout.writeUTF("entering compare");
                    String dateTempString=new String();
                    Date dateValue=new Date();
                    SimpleDateFormat formatter = new SimpleDateFormat ("hhmmss");
                    dateTempString = formatter.format(dateValue);
                    File dir1 = new File("C:\\FTPnew");
                    boolean success2 = dir1.mkdir();
                    if (!success2) {
                         // Directory creation failed /Already Exists
                    File dir = new File("C:\\FTPnew\\server");
                    boolean success = dir.mkdir();
                    if (!success) {
                         // Directory creation failed /Already Exists
                    File ftemp=new File(dir,dateTempString + filename);
                    File fnewtemp=new File(dir,"new-enc-"+filename);
                    // Create encrypter/decrypter class
                    DesEncrypter encrypter = new DesEncrypter("My Pass Phrase!");
                    FileOutputStream fout=new FileOutputStream(fnewtemp);
                    int ch;
                    String temp;
                    do
                    {     temp=din.readUTF();
                         ch=Integer.parseInt(temp);
                         if(ch!=-1)
                              fout.write(ch);
                    }while(ch!=-1);
                    fout.close();
                    //dout.writeUTF("written temp en file");
                    // Decrypt
                encrypter.decrypt(new FileInputStream(fnewtemp),
                new FileOutputStream(ftemp));
                    //String Option;
                    dout.writeUTF("Delete");
                    System.out.println("File Upload Successfull--Duplicate file with timestamp Created");
                    boolean success1 = fnewtemp.delete();
                    return "hello" ;
     void ReceiveFile() throws Exception
          String ip=din.readUTF();
          System.out.println("\tRequest Coming from Internal IP Address : "+ ip);
          String filename=din.readUTF();
          if(filename.compareTo("File not found")==0)
               return;
          // Destination directory
   File dir11 = new File("C:\\FTPnew");
                    boolean success22 = dir11.mkdir();
                    if (!success22) {
                         // Directory creation failed /Already Exists
                    File dir = new File("C:\\FTPnew\\server");
                    boolean success21 = dir.mkdir();
                    if (!success21) {
                         // Directory creation failed /Already Exists
          File f=new File(dir ,"enc-"+filename);
          File fe=new File(dir,filename);
          String option;
          if(fe.exists())
               //dout.writeUTF("File Already Exists");
               String compvalue = Compare(filename);
               //dout.writeUTF(compvalue);
               if(compvalue.compareTo("hello")==0)
                    //dout.writeUTF("Transfer Completed");
                    return;
               option=din.readUTF();
          else
               //dout.writeUTF("SendFile");
                option="Y";
               if(option.compareTo("Y")==0)
                    // Generate a temporary key.
        // Create encrypter/decrypter class
         DesEncrypter encrypter = new DesEncrypter("My Pass Phrase!");
             FileOutputStream fout=new FileOutputStream(f);
                    int ch;
                    String temp;
                    do
                    {     temp=din.readUTF();
                         ch=Integer.parseInt(temp);
                         if(ch!=-1)
                              fout.write(ch);
                    }while(ch!=-1);
                    fout.close();
                    // Decrypt
                encrypter.decrypt(new FileInputStream(f),
                new FileOutputStream(fe));
                    boolean success2 = f.delete();
                    dout.writeUTF("Delete");
                    System.out.println("File Upload Successfull");
               else
                    return;
     public void run()
          while(true)
               try
               String Command=din.readUTF();
               if(Command.compareTo("SEND")==0)
                    System.out.println("\tSEND Command Received ...");
                    ReceiveFile();
                    continue;
               catch(Exception ex)
                    //System.out.println("\tClient Terminated Abnormally ...........");
                    continue;

Please note that this is not an FTP client and server. FTP is defined by a standard IETF protocol and this isn't it.
Then, move the following lines:
din=new DataInputStream(ClientSoc.getInputStream());
dout=new DataOutputStream(ClientSoc.getOutputStream());
System.out.println("FTP Client Connected ...");
System.out.println("External IP of Client ..." + ClientSoc.getInetAddress());
//System.out.println("FTP Client Connected ..."+ClientSoc.getRemoteSocketAddress());from the constructor into the run() method. i.e. don't do anything with the socket in the thread which handles the accept().

Connect to FTP site with Apache commons net FTP client through Proxy

Hello,
I am trying to run this simple code to connect to FTP site through a proxy.
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
public class MyTest {
public static void main(String[] args) {
String ftpHostName = "ftp.xxx.com";
int ftpPort = 21;
String ftpUserName = "myUserName";
String ftpPassword = "myPassword";
System.setProperty("socksProxyHost" ,"10.148.0.131");
System.setProperty("socksProxyPort", "1080");
FTPClient ftpClient = new FTPClient();
try {
System.out.println("connecting");
ftpClient.connect(ftpHostName, ftpPort);
System.out.println("connected");
System.out.println("loging in");
boolean successLogin = ftpClient.login(ftpUserName, ftpPassword);
if(successLogin)
System.out.println("success login");
else
System.out.println("fail login");
catch (Exception e) {
e.printStackTrace();
finally {
try {
System.out.println("loging out");
ftpClient.logout();
System.out.println("disconecting");
ftpClient.disconnect();
catch (Exception e) {
e.printStackTrace();
I am getting the following error:
C:\temp\ftp\test>java.exe -cp ./commons-net-ftp-2.0.jar;. MyTest connecting
java.net.SocketException: Malformed reply from SOCKS server
at java.net.SocksSocketImpl.readSocksReply(SocksSocketImpl.java:87)
at java.net.SocksSocketImpl.connectV4(SocksSocketImpl.java:265)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:437)
at java.net.Socket.connect(Socket.java:519)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:176)
at MyTest.main(MyTest.java:23)
loging out
java.lang.NullPointerException
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:471<ftp://FTP.java:471>)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:534<ftp://FTP.java:534>)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:583<ftp://FTP.java:583>)
at org.apache.commons.net.ftp.FTP.quit(FTP.java:794<ftp://FTP.java:794>)
at org.apache.commons.net.ftp.FTPClient.logout(FTPClient.java:697)
at MyTest.main(MyTest.java:39)
I am able to do this using a different FTP client library, ftp4j-1.5.1<ftp://ftp4j-1.5.1> using the following code:
import it.sauronsoftware.ftp4j.FTPClient;
import it.sauronsoftware.ftp4j.connectors.SOCKS4Connector;
public class MyTestFtp4J {
public static void main(String[] args) {
String ftpHostName = "ftp.xxx.com";
int ftpPort = 21;
String ftpUserName = "myUserName";
String ftpPassword = "myPassword";
FTPClient ftpClient = new FTPClient();
ftpClient.setConnector(new SOCKS4Connector("10.148.0.131", 1080));
try {
System.out.println("connecting");
ftpClient.connect(ftpHostName, ftpPort);
System.out.println("connected");
System.out.println("loging in");
ftpClient.login(ftpUserName, ftpPassword);
System.out.println("success login");
catch (Exception e) {
e.printStackTrace();
finally {
try {
System.out.println("disconecting");
ftpClient.disconnect(true);
catch (Exception e) {
e.printStackTrace();
So I know the proxy settings are correct.
The java version I used to compile and run my apps is 1.6.0_06 Does anyone can help figure out what is wrong when I use the Apache commons net FTP client?
Thank you
Jon

Is the old AirPort Extreme base station (AEBS)
configured so that the option to distribute IP
addresses is DISABLED? If so, configure the new AEBS
to act as a bridge.
Are you suggesting I use a set-up with TWO AEBSs? Set up a bridge (not sure how) and then use the old AEBS to connect to the DSL modem and broadcast to the new Extreme which will then be the router to the other computers on the network?
Do you have any port mapping or default host enabled
on the old AEBS?
I do not understand, not do I see these options in the Base Station utitlity; perhaps they are in the FTP options--but that, I'm sorry to say, is not obvious to my inspection.
Duane, can you give me a few more basic instructions? Thanks
iMac 17

Impossible Upload files with Filezilla FTP Client after upgrade win8 to win8.1

Hi
Things were working fine with win 8 but, after Upgrade to win 8.1 is not possible upload files with Filezilla FTP Client.
is there anyone facing same problem?
thanks in advance for any answer to help me solve this issue
Regards
TC

Hi,
Please Change your transfer settings in site manager from either default or passive to active it to see what's going on.
Also, check IE compatibility mode.
In addition, I suggest you install all latest updates for Windows since these updates will improve and fix some known issues.
Kate Li
TechNet Community Support

Cannot configure wrt54gs v6 router for use with filezilla FTP client

I am new to working with FTP and very rusty on networking in general. I just downloaded filezilla to create a FTP client on my desktop. When I run their wizard, it says the connection is tainted by my router. All the forums for filezilla say I need to configure my router to allow traffic on either port 21 (ftp) or a range of ports ( they suggest 50000 to 50100).
Please let me know what I need to do to make this work
thanks in advance
ldygunner

To answer your other questions, the tutorials have it all wrong. What they really need to explain, but fail to do so, is that the only situation where a FTP client would need to use active mode (the PORT command) is where the FTP server can't accept inbound connections on arbitrary port numbers. But that's a pathological case anyway: the FTP server can always accept connections on some well defined set of port numbers, to keep its own local firewall or NAT router happy. Consequently, there is really no need at all for a FTP client system to open up any ports to support active mode, rather than always operate in passive mode (as browsers do.)
The fact of the matter is that if passive mode works in a browser for you, it will work for Filezilla also.
And the configuration tests it runs are brain damaged. Even though the wizard recommends passive mode, it never tests for it. And it doesn't really test active mode either. What it really tests is whether anything between the client and the server is "transparently" translating IP addresses and port numbers. Such a test is broken, because the mere fact of port numbers being rewritten in TCP packets is irrelevant to whether PORT (active mode) will succeed or fail.
For completeness, in case someone decides to get pedantic, there is a case where a FTP client system would need the active mode PORT command to work, but that case is now of historical interest only. It's a scenario that FTP servers no longer support, for security reasons. (What is it? When the FTP client is operating as a controller to remotely transfer files between two servers: it tells one server to use passive mode, and sends the address/port it gets to the other server in active mode, which in theory would make the second server open a connection to the first. This, in fact, is why two modes, active and passive, were originally defined in the FTP standard!) And it still wouldn't need open ports on the client system.
Message Edited by arayq2 on 10-19-2008 09:12 PM

FTP issues with DW CS5 that don't happen with an FTP client or MX

On a mac OS 10.6.4, using DW CS5 to login to an existing site using FTP. It connects fine but then all I get is a .txt file with a note indicating that FTP can't be used when Frontpage extensions are activated. I checked on my webserver status (at 1&1) and they aren't active. So I tried with an FTP client like cyberduck and all the files are there. Likewise, I used an old version of DW (think it was MX vintage 2002) and all the files show up server side just fine - (I just can't download the site due to version incompatibility so DW rejects it). Does anyone know what could be going wrong here? As far as I know the site was created by DWMX (think that was 2004). Thanks

I assumed that if I was using an older version of DW then it wouldn't download pages authored with a later version but I guess it's just code...
Yep - it's just text files containing HTML, CSS, javascript, and links to other files.
When using FTP through DWMX I see the server side of the site
You can see the files listed on the remote server?
I can send you the details if you wish, I'm not sure what's going on here...
You can try sending to forums at domain dot com (replace 'domain' with 'great-web-sights')

Issue with vlc steaming through dolphin ftp client

I am not sure if i should post this here or in the multimedia section excuse me if i am mistaken. I have been using archlinux in almost 4 weeks with gnome 3. I have installed kde today after removing gnome(pacman -Rscn gnome). I have a small home server running ftp server where i have some media files(.mkv). In gnome i usually used nautilus to access the ftp folder(sftp://servername.dyndns.org/srv/) and run vlc to stream the medias. Tried to do the same with kde dolphin with no luck.
First i was not able to view the folder with dolphin. I researched abd found this thread with a solution:
http://forum.kde.org/viewtopic.php?f=18 … 5&start=15
Now i am able to access the folder, but can't stream any media using vlc.
The following errors are from vlc:
Your input can't be opened:
VLC is unable to open the MRL.
sftp://servername.dyndns.org/srv/filename.mkv
Check the log for details.
Going into tools->messages gives the followings:
main error: open of
sftp://servername.dyndns.org/srv/filename.mkv failed:(null)
I suspect something is wrong the ftp client configuration in dolphin. This bug report also bothers me also :
http://old.nabble.com/-Bug-274170--New% … 05158.html
Other thing is that i am able to open the media files using other media players(dragon player, mplayer), but then the files are automatically downloaded into the local folder /var/tmp/kdecache-username/krun/filename.mkv. The media player then loads the file from there. Its the same if i open a text file in the server, edit it and save it. Its first downloaded to the /var/ folder then asked to upload back to the server when closed.
Its my conclusion that the ftp client in dolphin does not work properly or KDE KIO works different then whatever is used in gnome/nautilus. I hope i have explained the issue as good as possible and would appreciate any help or lead to how to solve this.

Thanks for your reply, after checking some ideas I found that to get the ftp to work I needed to use the internal IP 10.0.0.1 for it rather than the old normal IP like before the firewall(probably a very beginner error sorry for that). And I discovered the exact issue causing clients to not see their characters if not using Hamachi.
Hamachi treats everyone join to the network as though they are local I believe, so when the server send character info via Hamachi it thinks it is sending the info locally and then Hamachi itself sends it out to the extrenal client, while tracing the data I found that the login process sends a 33 byte packet of data to the client via TCP from port 5051 out to the client on a rnadom port usually in the range of 40000-50000 telling the client to send a request to the other process to ask for the character information.
Now for some reason I see when a client logs in through Hamachi that packet is sent correctly to their Hamachi IP and recived fine.(sent from 10.0.0.1:5051 to the Hamachi IP:40k-50k) but when a client tries to log in using a normal IP with Hamachi turned off, the log in process does send the 33 byte packet from 10.0.0.1:5051 to the client WAN IP through the usual port but the client never recieves this packet and as such doesn't not request the character information.
So my guess is something on the 5505 is disallowing the log in process to send the data externally to the clients WAN IP's? Though this is very odd because it does allow the client to actually log in to the account and seems to recieve at least part of that information fine.
If any help that might resolve this for me can be given I would very much appreciate it, this issue is limiting my client base and as such my income and business as a whole. Thank you in advance for any help given.

Help with my FTP client program

Hello All,
I am trying to modify a client FTP program to get a grasp on network programming. However when I try to connect to the host I get an error of Anonyymous login. What am I doing wrong? Below is the FTPclass program that I found on the net. How do resolve this issue? Thanks!!
      * Connects to the given FTP host on port 21, the default FTP port.
//     public boolean connect(String host, int port, String userName, String passWord) throws UnknownHostException,
//               IOException {
//          return connect(host, 21, userName, passWord);
      * Connects to the given FTP host on the given port.
     public boolean connect(String host, int port, String userName, String passWord) throws UnknownHostException,
               IOException {
          connectionSocket = new Socket(host, port);
          outputStream = new PrintStream(connectionSocket.getOutputStream());
          inputStream = new BufferedReader(new InputStreamReader(connectionSocket
                    .getInputStream()));
          if (!isPositiveCompleteResponse(getServerReply())) {
               disconnect();
               return false;
          return true;
      * Disconnects from the host to which we are currently connected.
     public void disconnect() {
          if (outputStream != null) {
               try {
                    if (loggedIn) {
                         logout();
                    outputStream.close();
                    inputStream.close();
                    connectionSocket.close();
               } catch (IOException e) {
               outputStream = null;
               inputStream = null;
               connectionSocket = null;
      * Wrapper for the commands <code>user [username]</code> and <code>pass
      * [password]</code>.
     public boolean login(String username, String password) throws IOException {
          int response = executeCommand("user " + username);
          if (!isPositiveIntermediateResponse(response))
               return false;
          response = executeCommand("pass " + password);
          loggedIn = isPositiveCompleteResponse(response);
          return loggedIn;
      * Added by Julian: Logout before you disconnect (this is good form).
     public boolean logout() throws IOException {
          int response = executeCommand("quit");
          loggedIn = !isPositiveCompleteResponse(response);
          return !loggedIn;
      * Wrapper for the command <code>cwd [directory]</code>.
     public boolean changeDirectory(String directory) throws IOException {
          int response = executeCommand("cwd " + directory);
          return isPositiveCompleteResponse(response);
      * Wrapper for the commands <code>rnfr [oldName]</code> and <code>rnto
      * [newName]</code>.
     public boolean renameFile(String oldName, String newName)
               throws IOException {
          int response = executeCommand("rnfr " + oldName);
          if (!isPositiveIntermediateResponse(response))
               return false;
          response = executeCommand("rnto " + newName);
          return isPositiveCompleteResponse(response);
     /**Here is the code to test the client program
lass verifyFTP {
     public static void main(String[] args) {
          String serverName;
          String portNumber;
          int port = 21;
          FTPConnection ftp = null;
          try {
               if (args.length == 0) {
                    serverName = getStringFromUser("Enter the server you would like to connect to: ");
                    if (serverName.length() == 0) {
                         return;
                    }//end if
               } else {
                    serverName = args[0];
               }//end else
               String userName = "";
               String passWord = "";
               // set the FTPConnection parameter to true if you want to
               // see debug output in your console window
               ftp = new FTPConnection(true);
               System.out.println("Attempting to connect to " + serverName);
               ftp.connect(serverName, port, userName, passWord);
               if(ftp.login("", "")){
                    System.out.println("Successfully logged in!");
                    System.out.println("System type is: " + ftp.getSystemType());
                    System.out.println("Current directory is: "
                              + ftp.getCurrentDirectory());
                    String files = ftp.listFiles();
                    // private function that gets console input from the user
     private static String getStringFromUser(String prompt) throws IOException {
          System.out.print(prompt);
          BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
          return br.readLine();

You should print out exactly what you are sending and what you are recieving via the socket. You do this just before you send it and when you receive it (you do not modify it in any way first.)
You should also use an existing FTP client to log into your server. Presumably it is successful. Then you can use ethereal (free software google it) to examine exactly what the FTP client sends versus what you are sending. You will probably find that it is sending a different command than what you are.

Alternative FTP client app on mac

Hi guys
Can you recommend on a good reliable FTP client for Mac? I would like the FTP client to upload files automatically upon saving the file which is a great feature of Espresso but unfortunately I find Espresso's FTP to be a pain to work with.
Thanks

If you check the following article, you will get a list of FTP clients recommended by Business Catalyst
http://kb.worldsecuresystems.com/kb/connecting-your-site-using-ftp.html#main_Understanding _FTP_clients
Here is the List of FTP clients for MAC given in the Article:
http://www.cuteftp.com/trial.aspx (Cute FTP)
http://filezilla-project.org/download.php (File Zilla)
http://cyberduck.ch/ (Cyberduck)
http://mac.sofotex.com/download-130101.html (SimpleFTP)
Hope this helps.

Coding a FTP-client with a special feature

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