![]() Command: " + command ) įor a full example, you can check out code from the following git repository. After this, click the Browse button and select your private key file (.ppk file). Throw new RuntimeException ( "Error durring SSH command execution. Open your PuTTY client and select Connections SSH Auth from the sidebar. The next step is to connect to the remote host and execute an arbitrary command over SSH: String command = "echo \"Sit down, relax, mix yourself a drink and enjoy the show.\" > /tmp/test.out" Ĭhannel channel = session. Throw new RuntimeException ( "Failed to create Jsch Session object.", e ) setConfig ( "PreferredAuthentications", "publickey,keyboard-interactive,password" ) String privateKeyPath = "/home/vladimir.stankovic/.ssh/id_rsa" Here is the sample code for configuring public key authentication: JSch jsch = new JSch ( ) The most important part is configuration of object and adding publickey to the list of PreferredAuthentication options. ![]() I have used JSch library to establish SSH connection. Now try logging into the machine, with: "ssh check to make sure that only the key(s) you wanted were added. Click on 'Browse.' and find your ppk file that you saved previously. On the lefthand side, click on the + symbol next to 'SSH'. usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed - if you are prompted now it is to install the new password: Type putty.exe and press Enter (or click 'OK'). $ ssh-copy-id -i /home/vladimir.stankovic/.ssh/id_rsa INFO: attempting to log in with the new key(s), to filter out any that are already installed The ssh-copy-id copies the public key of your default identity (use -i identity_file for other identities) to the remote host. Use PuTTY to SSH into the remote machine and enter your password. Private key is identified as id_rsa and public key as a id_rsa.pub. If the ssh-copy-id command is not available on your machine, skip the following steps. Your public key has been saved in /home/vladimir.stankovic/.ssh/id_rsa.pub. Your identification has been saved in /home/vladimir.stankovic/.ssh/id_rsa. Here is the output from my local development box: ~Įnter file in which to save the key (/home/vladimir.stankovic/.ssh/id_rsa):Įnter passphrase (empty for no passphrase): Private/public key pair can be generated by executing the following command: ssh-keygen -t rsa The first step is to generate a private/public key on the server where your java application will be running. The private key should be stored in the ssh keychain and protected with the encryption passphrase. The immediate benefit is that the password is not transferred over the network, thus preventing the possibility of the password being compromised. Public key authentication enables users to establish an SSH connection without providing (i.e. Also, configuration details for enabling public key authentication and protecting ssh keys will be provided. establish ssh connection) to the remote host from java application. It can setup the public key authentication for you. If you do not want to do this manually, you can use WinSCP 5.15. So you may use that locally, if you have Git for Windows. On the server type: ssh-copy-id -i mykey.pub usernamelocalhost On Windows ssh-copy-id script comes with Git for Windows. This article shows how to securely connect (i.e. Login to the server with an SSH client, like PuTTY. Public key authentication with Java over SSH Table of contents: # Public key authentication with Java over SSH
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