one possible problem is
type i (if your sending/receiving machine is EBCDIC and
the file contains non-display data, e.g., COMP-3);
i know of one system that sends/receives EBCDIC.. an old ibm mainframe that the
army abandoned in Saigon in 75..all other computer systems send/receive and
process in ascii
i would strongly suggest setting type='a'
http://www.ucop.edu/irc/campus_specs/ftp/aixftp.html
what happens when you use issue the same series of commands at command-line
prompt?
Martin Gainty
______________________________________________
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> Date: Fri, 23 Apr 2010 11:55:49 -0300
> Subject: Commons-net FTP and AIX 5.3 FTP Server
> From: [email protected]
> To: [email protected]
>
> Hello,
>
> Let me explain what's happening: I have no problems connecting and uploading
> files to Linux, Windows or even SCO (yes, it still exists) FTP servers, but
> when I try to execute a simple command using FTPClient to AIX 5.3 I got the
> following exception:
>
> 1.
> org.apache.commons.net.MalformedServerReplyException: Could not
> parse response code.
> 2. Server Reply: : The socket name is not available on this system.
> 3. at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:316)
> 4. at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:491)
> 5. at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:533)
> 6. at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:582)
> 7. at org.apache.commons.net.ftp.FTP.quit(FTP.java:790)
> 8. at org.apache.commons.net.ftp.FTPClient.logout(FTPClient.java:759
> )
> 9.
> at
> testes.integracao.FtpCommonsNetTest.testRiscf80(FtpCommonsNetTest.java:
> 27)
> 10. ...
>
> org.apache.commons.net.MalformedServerReplyException: Could not parse
> response code. Server Reply: : The socket name is not available on this
> system. at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:316) at
> org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:491) at
> org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:533) at
> org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:582) at
> org.apache.commons.net.ftp.FTP.quit(FTP.java:790) at
> org.apache.commons.net.ftp.FTPClient.logout(FTPClient.java:759) at
> testes.integracao.FtpCommonsNetTest.testRiscf80(FtpCommonsNetTest.java:27)
> ... The code that generates the stack above is just that:
>
> 1. @Test
> 2. public final void testRiscf80() throws Exception {
> 3. FTPClient ftp = new FTPClient();
> 4. try {
> 5. ftp.connect(AIX_HOST_IP);
> 6. ftp.login(AIX_USER, AIX_PASSWD);
> 7. ftp.changeWorkingDirectory(
> "/riscf80/path/to/uploaded/files");
> 8. File file = new File("some-dummy-file.gz");
> 9. FileInputStream fis = new FileInputStream(file);
> 10. ftp.storeFile(fileName, fis);
> // Line where exception occurs
> 11. } finally {
> 12. ftp.logout();
> 13. ftp.disconnect();
> 14. }
> 15. }
>
> @Test public final void testRiscf80() throws Exception { FTPClient ftp = new
> FTPClient(); try { ftp.connect(AIX_HOST_IP); ftp.login(AIX_USER,
> AIX_PASSWD); ftp.changeWorkingDirectory("/riscf80/path/to/uploaded/files");
> File file = new File("some-dummy-file.gz"); FileInputStream fis = new
> FileInputStream(file); ftp.storeFile(fileName, fis); // Line where exception
> occurs } finally { ftp.logout(); ftp.disconnect(); } } That was intriguing,
> so I performed some research and reached the following results printing all
> responses from the server while was just trying to list some folder files:
>
> 1. @Test
> 2. public void testListingRiscf80Internal() throws Exception {
> 3. FTPClient client = new FTPClient();
> 4. try {
> 5. client.connect(AIX_HOST_IP);
> 6. System.out.println(client.getReplyString());
> 7. if(client.login(AIX_USER, AIX_PASSWD)) {
> 8. System.out.println(client.getReplyString());
> 9. client.setFileType(FTPClient.BINARY_FILE_TYPE);
> 10. System.out.println(client.getReplyString());
> 11. client.pwd();
> 12. System.out.println(client.getReplyString());
> 13. client.list(); // This generates the 425 reply code
> 14. System.out.println(client.getReplyString());
> 15. }
> 16. } finally {
> 17. client.logout(); // Where exception is thrown
> 18. client.disconnect();
> 19. }
>
> @Test public void testListingRiscf80Internal() throws Exception { FTPClient
> client = new FTPClient(); try { client.connect(AIX_HOST_IP);
> System.out.println(client.getReplyString()); if(client.login(AIX_USER,
> AIX_PASSWD)) { System.out.println(client.getReplyString());
> client.setFileType(FTPClient.BINARY_FILE_TYPE);
> System.out.println(client.getReplyString()); int pwd = client.pwd();
> System.out.println(pwd+" / "+client.getReplyString()); int list =
> client.list(); // This generates the 425 reply code
> System.out.println(list+" / "+client.getReplyString()); } } finally {
> client.logout(); // Where exception is thrown client.disconnect(); }
> And these are the sysout results:
>
> 220 riscf80 FTP server (Version 4.2 Fri May 2 12:48:10 CDT 2008) ready.
> 230-Last unsuccessful login: Wed Apr 21 18:35:18 GRNLNDST 2010 on ssh from
> SOME_IP
> 230-Last login: Thu Apr 22 19:41:45 GRNLNDST 2010 on ftp from SOME_HOST
> 230 User SOME_USER logged in.
> 200 Type set to I.
> 257 "/riscf80/some/folder" is current directory.
> 425 No data connection
> 220 riscf80 FTP server (Version 4.2 Fri May 2 12:48:10 CDT 2008) ready.
> 230-Last unsuccessful login: Wed Apr 21 18:35:18 GRNLNDST 2010 on ssh from
> SOME_IP 230-Last login: Thu Apr 22 19:41:45 GRNLNDST 2010 on ftp from
> SOME_HOST 230 User SOME_USER logged in. 200 Type set to I. 257 / 257
> "/riscf80/some/folder" is current directory. 425 / 425 No data connection
> Some additional data may be useful to understand this issue:
> There is no firewall between the client and the FTPServer
> I've tried other client libraries (like edtFTPJ, ftp4j), they work but their
> performance is very poor compared to commons-net
> I couldn't find an explicit way to set preference on ipv4 stack over ipv6
> stack in commons-net lib
> I've also tried to enable the remote passive mode for no avail. Tried
> several different things, like disabling the remote verification, and
> nothing made the trick. It's a very specific problem, but any thoughts would
> be greatly appreciated.
>
> Thanks in advance
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