Question

I have a java program Read which reads file from an URL looks like this:
file://myhost/system.log

On Windows I use this command:

java Read "file://myhost/system.log"

and it works flawlessly.

But on Linux when I try to use the same command it gives me this error:

Exception in thread "main" java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
        at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
        at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at sun.net.ftp.impl.FtpClient.doConnect(Unknown Source)
        at sun.net.ftp.impl.FtpClient.tryConnect(Unknown Source)
        at sun.net.ftp.impl.FtpClient.connect(Unknown Source)
        at sun.net.ftp.impl.FtpClient.connect(Unknown Source)
        at sun.net.www.protocol.ftp.FtpURLConnection.connect(Unknown Source)
        at sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(Unknown Source)
        at java.net.URL.openStream(Unknown Source)
        at read.readInput(ReadHTML.java:53)
        at read.readInput.main(ReadHTML.java:76)

Any ideas?

UPDATE:
I think I found the problem:
myhost is not mounted on the Linux machine so that it cannot connect to it by using file://...

Thanks for all the answers, guys!

Answer 1

This is because your program (by virtue of using a file URL on a Linux OS) is attempting to open an FTP connection to the host specified in the URL. The establishment of the FTP connection fails.

This could be due to a variety of issues. Try connecting with ftp directly:

ftp myhost

And I’m guessing it’d fail as well. Do you have an FTP server installed & running?