SSH without inputing password

[tech user]

Hello everyone,

When I login to a linux host with ssh like:

ssh 12.34.56.78

It requires me to input the password.
I'm tired to input that long passwd again and again.

Also the remote system's openssh doesn't support public key auth.
So please don't suggest me to use Public Key.

So how can I login into that system by ssh without inputing the passwd?

for example,when I say,

ssh 12.34.56.78

I will go into the remote system promptly.

Thanks.

B. Regards,
-Ken


      Get the name you always wanted with the new y7mail email address.
www.yahoo7.com.au/y7mail