#Linux ssh keygen rsa2 how to
#Linux ssh keygen rsa2 install
#Linux ssh keygen rsa2 password

The SSH Agent will be running in the background to hold the private keys and perform ssh and scp without having to enter the passphrase several times.

#Linux ssh keygen rsa2 password

Instead, use the passphrase while creating the key pair and use SSH Agent to perform ssh and scp without having to enter the password everytime as explained in the steps below. If you are using ssh and scp interactively from the command-line and you don’t want to use the password everytime you perform ssh or scp, I don’t recommend the previous option (no passphrase), as you’ve eliminated one level of security in the ssh key based authentication. You can skip the next step steps for this method. if you are running a cron job to copy files between machines this is suitable option. Use this option for the automated batch processing. While creating key pair, leave the passphrase empty. There are two ways to perform ssh and scp without entering the password: Warning: Permanently added 'local-host' (DSA) to the list of known hosts.Įnter passphrase for key '/home/jsmith/.ssh/id_rsa': The authenticity of host 'local-host' can't be established.ĭSA key fingerprint is a5:f6:2e:e6:a9:b2:7b:0e:e7:ae:cb:6c:7b:f5:6d:06.Īre you sure you want to continue connecting (yes/no)? yes Verify the Login from the local-host to remote-host using the SSH2 key authentication. $ vi ~/.ssh2/local-host_ssh2_key.pubĬomment: '2048-bit RSA, converted from OpenSSH by END SSH2 PUBLIC KEY -Īdd the above public key file name to the authorization file on the remote-host as shown below.

#Linux ssh keygen rsa2 install

Install the public-key on the remote-host that is running SSH2.Ĭreate a new public key file on remote-host and copy paste the converted SSH2 key from the local-host. On local-host that is running openSSH, convert the openSSH public key to SSH2 public key using ssh-keygen as shown below.

Convert openSSH public key to SSH2 public key. You can also generate DSA key pair using: ssh-keygen -t dsa command. You should not share the private key with anybody.īy default the ssh-keygen on openSSH generates RSA key pair. In this example, it is under /home/jsmith/.sshd. Your public key has been saved in /home/jsmith/.ssh/id_rsa.pub.ģb:2a:d2:ac:8c:71:81:7e:b7:31:21:11:b8:e8:31:ad public key and private key are typically stored in. Your identification has been saved in /home/jsmith/.ssh/id_rsa. Generate key-pair on the local-host using ssh-keygen $ ssh-keygenĮnter file in which to save the key (/home/jsmith/.ssh/id_rsa): Įnter passphrase (empty for no passphrase): Lrwxrwxrwx 1 root root 4 Mar 10 22:04 /usr/local/bin/ssh -> ssh2Ģ. Ssh: SSH Secure Shell 3.2.9.1 (non-commercial version) on i686-pc-linux-gnu In this example, local-host is running on openSSH and remote-host is running on SSH2.

Verify the local-host and remote-host SSH version.

#Linux ssh keygen rsa2 how to

This article explains how to setup SSH key based authentication between different version of SSH (from openSSH to SSH2) to perform ssh and scp without entering password.ġ. The previous articles ( openSSH to openSSH setup, SSH2 to SSH2 setup) explains about how to setup key based authentication on the same version of ssh to perform ssh and scp without entering password.