Jsch error - failed to send channel request
channel, jsch, sftp
Solution
Check if SFTP server is started and running.
I had encountered the same issue - I was not able to open SFTP channel to my server, but I could connect with WinSCP. It took me some time to notice that WinSCP would fallback to SCP hence confusing me. Starting the server solved this issue.
Problem
I am trying to connect to a SFTP remote server using JSCH library version 0.1.49. Every time I run the program I receive the following error : ``` Initializing... Connection to SFTP server is successfully com.jcraft.jsch.JSchException: Unable to connect to SFTP server.com.jcraft.jsch.JSchException: failed to send channel request at shell.MainClass.JschConnect(MainClass.java:95) at shell.MainClass.main(MainClass.java:30) ``` line 30 is : `sftpChannel.connect()` from the code below : ``` System.out.println("Initializing..."); JSch jsch = new JSch(); Session session = null; try { session = jsch.getSession(ProjectConstants.rmUsername,ProjectConstants.rmHost, 22); session.setPassword(ProjectConstants.rmPassword); java.util.Properties config = new java.util.Properties(); config.put("StrictHostKeyChecking", "no"); session.setConfig(config); session.connect(); if (session.isConnected() == true) { System.out.println("Connection to SFTP server is successfully"); } ChannelSftp sftpChannel = (ChannelSftp) session.openChannel("sftp"); try { sftpChannel.connect(); } catch (Exception e) { throw new JSchException("Unable to connect to SFTP server. " + e.toString()); } ``` the credentials I am using are correct ( it connects through FileZilla using the same data ), and I also disabled the proxy for that server ( either way I get the same error with or without proxy ) If anyone could help me I would greatly appreciate it as I am stuck with this error for about a week now ... Thank you.