On Friday 09 September 2005 12:30, Shu Hung (Koala) wrote: > Dear all, > > I need to make a sshd2 linux server accessible for a ssh1 linux client > machine. > And I need to use key authentication in this access. > > What should I do? > Where should I put the identity (private key) on the client? > Where should I put the public key on the server? > > Please help! > Thanks a lot!!! > > Koala Yeung Both servers run openssh 4.1p1(that comes with FC4). my steps: Client ssh box: $ ssh-keygen -t rsa1 It will generate identity.pub and identity. Server ssh box: Put the content of the identity.pub to authorized_keys (add it to the end of this file) that can be found in the user's dir you want to login under, e.g. for root it should be /root/.ssh/authorized_keys That's all. After this I could connect to the server ssh box under root w/ no passwd (I entered passphrase empty) using ssh1 protocol: [vitaliy 06:51:48 PM]$ ssh -1 root@xxxxxxx Last login: Sat Sep 10 22:25:33 2005 from Y.Y.Y.Y [root@blabla ~]# But again it's for openssh that support both ssh1/2. What software do you run on your boxes? Maybe it's actual to use ssh2 as ssh1 is not secure. Best regards.