I’m facing an issue when I try to connect to PostgreSQL Database after connected SSH successfully. I’m using Java + JSCH library to help connect to DB PostgreSQL via SSH tunnel. Please help to take a look on my code: An exception is thrown at following step: Here is result: I used value above to c…
Tag: jsch
Retrieving host key of remote SSH server using Java
I want to be able to retrieve the host key of a remote SSH host using Java code. Is there any library that does this, I looked into JSch but couldn’t find what I wanted. I am aware that I can run the terminal command ssh-keyscan <hostname> through Java, but I want this to be the last resort. Seeki…
JSch SFTP connections getting stuck
We have a java 7 code base where we are using Apache commons vfs2 v2.2 which is using JSch-0.1.54 as sftp provider. Now, the use case is to transfer files to a remote host via sftp. But, every now and then, the file upload process gets stuck. After taking the thread dump of the application, we found both the …
Upload a file to an SFTP server using PDFBox save method without storing the file to the local system?
I’m trying to save the edited PDF which I fetched from the remote server back to its location without having it downloaded/stored on the local machine. I’m using JSch SFTP method to get the input PDF file from the SFTP server using and after doing some edits using PDFbox, I’m trying to save …
Use public key fingerprint in Java Spring Boot application to solve “The authenticity of host ‘xxxx’ can’t be established”
I have a Java Spring Boot application which is using the spring-integration-sftp dependency to connect to an SFTP server. I get an error The authenticity of host ‘xxxx’ can’t be established and I know this can easily be rid of by setting the sftpSessionFactory.setAllowUnknownKeys(true), but …
Ivy Install task fails with JSCH SFTP error 4 first time, but is successful on subsequent attempts
I am trying to use the ANT Ivy install task to copy a library from one repository to the other. Some example code within my ANT target: The fromRepo and toRepo are defined in a local ivysettings.xml file. The resolve (from fromRepo) of the library is successful but the install to toRepo fails, with an SFTP Co…
File size is zero while copying them from Network to local path using JSch
I am trying to write a service which will copy multiple files from one network location to local project file , while i am running the code i am having below observations If there is only one file and say it is of 520kb while copying through the network we are having 519kb. If there are multiple files the fil…
SSH password authentication in Java using jcraft JSch fails with “Auth fail” but command-line “ssh” works
My system’s OS is Ubuntu 18. I am trying to connect SFTP through Java jcraft JSch but facing this exception: com.jcraft.jsch.JSchException: Auth fail Below are working: From terminal using sftp works fine with username and password, no issues. From FileZilla also it is working fine. Maven Dependency: Ou…
Read file extended attributes of files on SFTP server with JSch
I want to read file extended attributes using com.jcraft.JSch 0.1.55 (the file is on SFTP server). I know that class SftpATTR actually does have a method but in my case it returns null. I see that in this code the last if-statement is responsible for reading extended attributes but it seems to me that it alwa…
Executing multiple commands over SSH “exec” channel on firewall device with Java JSch does not work
I referred the question Multiple bash commands and implemented as below. I am connecting to a device for which first command should be configure then only I will get a prompt to execute all other commands. I don’t get output for any of the commands and the control does not return. The following are the …